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2017年第6期

时间:2017-07-10 16:24:03??来源:??作者:

?计算机仿真发展现状及未来的量子计算机仿真展望zDpag8879环亚手机|首页主页

zDpag8879环亚手机|首页主页

范文慧1,吴佳惠2zDpag8879环亚手机|首页主页

(1. 清华大学自动化系,北京 1000842. 新疆大学电气工程学院,乌鲁木齐 830047)zDpag8879环亚手机|首页主页

摘要:综合分析了美国基于仿真的工程与科学的三个战略报告与我国的仿真科学与技术学科发展报告,指出了我国计算机仿真技术方面存在的不足与差距;研究分析了量子计算的优缺点,提出了将对目前计算机仿真产生根本改变的基于量子计算机的仿真即量子计算机仿真,给出了量子计算机仿真的定义、内涵与研究方向,包括基于量子计算机仿真的仿真理论、仿真系统与仿真工程三个方面;展望了量子计算机仿真在智能仿真、虚拟仿真、平行仿真与云仿真方面的应用前景。zDpag8879环亚手机|首页主页

关键词:计算机仿真;量子计算机仿真;量子计算;量子计算机zDpag8879环亚手机|首页主页

中图分类号:TP301 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 06-1161-07zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706001zDpag8879环亚手机|首页主页

Development and Future Trend of Computer Simulation and Quantum Computer SimulationzDpag8879环亚手机|首页主页

Fan Wenhui1, Wu Jiahui2zDpag8879环亚手机|首页主页

(1. Department of Automation, Tsinghua University, Beijing 100084, China; 2 School of Electrical Engineering, Xinjiang University, Urumchi 830047, China)zDpag8879环亚手机|首页主页

Abstract: The development status of computer simulation in America and the development status of computer simulation in China were summarized; On the base of the comprehensive analysis of the development of quantum computing, the quantum computer based simulationQCBS was proposed, and the research fields of quantum computer based simulation were given including simulation modeling theory, simulation system and simulation application of QCBS; The application prospects of QCBS, such as applying in intelligent simulation, virtual simulation, parallel simulation and cloud computation based simulation, were proposed.zDpag8879环亚手机|首页主页

Keywords: computer simulation; quantum computer simulation; quantum computer; quantum computationzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

基于混沌人工蜂群优化的声源定位算法zDpag8879环亚手机|首页主页

郭业才1,2,马伟伟1,朱赛男1zDpag8879环亚手机|首页主页

(1. 南京信息工程大学电子与信息工程学院,江苏 南京 2100442. 南京信息工程大学江苏省大气环境与装备技术协同创新中心,江苏 南京 210044)zDpag8879环亚手机|首页主页

摘要:针对传统可控响应功率和相位变换(SRP-PHAT)的声源定位算法计算量大、实时性差等问题,提出了一种基于混沌人工蜂群优化的SRP-PHAT声源定位算法。该算法将阵列的波束输出功率作为目标代价函数,建立声源定位数学模型,利用混沌的全局覆盖性和人工蜂群算法的收敛速度快、鲁棒性强等特点,实现了声源的三维精确定位。实验结果表明,该算法计算量小、定位精度高,能满足实际系统的定位需求。zDpag8879环亚手机|首页主页

关键词:混沌映射;人工蜂群;可控响应功率和相位变换;声源定位算法zDpag8879环亚手机|首页主页

中图分类号:TN911.7, TH701 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 06-1168-06zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706002zDpag8879环亚手机|首页主页

Source Location Algorithm Based on Chaos Artificial Bee Colony AlgorithmzDpag8879环亚手机|首页主页

Guo Yecai1,2, Ma Weiwei1, Zhu Sainan1zDpag8879环亚手机|首页主页

(1. School of Electronic and Information Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China; 2. Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment, Nanjing University of Information Science & Technology, Nanjing 210044, China)zDpag8879环亚手机|首页主页

Abstract: Aiming at defects of large computational complex and poor real-time performance of the traditional power controlled response and phase transformation (Steering response power-phase transform, SRP-PHAT) based source localization algorithm, a novel SRP-PHAT source localization algorithm based on chaos artificial bee colony algorithm was proposed. In this proposed algorithm, the beam power function of the microphone array was used as the objective cost function to establish the mathematical model of the source localization, the global coverage of chaos and fast convergence speed and strong robustness of the artificial colony algorithm were combined to realize 3D localization of the sound source. The experimental results show that the proposed algorithm has lower computational complex and high positioning accuracy, and it can satisfy the need of actual positioning system.zDpag8879环亚手机|首页主页

Keywords: chaotic mapping; artificial colony; steering response power-phase transform (SRP-PHAT); sound source localization algorithmzDpag8879环亚手机|首页主页

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消费者小世界社会网络下双寡头产品定价策略zDpag8879环亚手机|首页主页

李锋1,魏莹2zDpag8879环亚手机|首页主页

(1. 华南理工大学工商管理学院,广东 广州 5106402. 暨南大学企业管理系,广东 广州 510632)zDpag8879环亚手机|首页主页

摘要:鉴于现实世界中消费者的购买决策普遍受到朋友的影响,Hotelling模型基础上,研究当消费者之间的社会关系网络满足小世界特性时,双寡头竞争下的产品定价策略。通过建立研究对象的多智能体模型,仿真分析了需求方的小世界网络对供应方的产品定价问题的影响。仿真结果表明市场中受他人影响的消费者数量越多,消费者受他人影响的程度越大,即消费者非完全理性程度增大,供应方能够通过抬高产品价格而获利。受到小世界网络结构的影响,其中一个供应方具有明显的价格和利润优势。并且,供应方的促销策略也因此有较大的差异。zDpag8879环亚手机|首页主页

关键词:Hotelling模型;小世界网络;消费者行为;销售努力;多智能体建模仿真zDpag8879环亚手机|首页主页

中图分类号:TP391.9 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 06-1174-12zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706003zDpag8879环亚手机|首页主页

Impact of ‘Small World’ Social Network of Consumers on Pricing Decision in Duopoly MarketzDpag8879环亚手机|首页主页

Li Feng1, Wei Ying2zDpag8879环亚手机|首页主页

(1. School of Business Administration, South China University of Technology, Guangzhou 510640, China; 2. Department of Business Administration, Jinan University, Guangzhou 510632, China)zDpag8879环亚手机|首页主页

Abstract: Noticing the influences of friends on consumers purchasing decisions, the impact of ‘small world’ social network on price competition in a duopoly hotelling model was studied. A multi-agent based modeling approach was proposed to represent the consumers’ decisions, which related to their connected friends in a social network, as well as the firms’ pricing decisions. Simulation results reveal that the ‘small world’ social network has a significant impact on the competing firms’ pricing decisions. In specific, with the increasing number of consumers who are impacted by their friends, or the increasing likelihood of following friends’ decisions, consumers then behave less rational. Both firms benefit from such bounded rationality and gain profits by raising their selling prices. In addition, one firm may benefit more than the other due to the network structure of the ‘small world’. As a result, policies of sales effort investment are also different for the two competitors.zDpag8879环亚手机|首页主页

Keywords: hotelling model; small world network; consumer behavior; sale effort; multi-agent modeling and simulationzDpag8879环亚手机|首页主页

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计算机数控系统元建模研究zDpag8879环亚手机|首页主页

肖苏华zDpag8879环亚手机|首页主页

(广东技术师范学院机电学院广东 广州 510635)zDpag8879环亚手机|首页主页

摘要:采用领域为载体、模型为中心的方法开发计算机数控系统,使用UML/OCL在通用建模环境工具中对CNC系统进行元建模。针对数控领域进行特性分析,提出了一种面向CNC系统领域的CNCVFC元建模方法,采取多视角的方式捕获CNC领域的特征,依据特征描述CNC领域构件及其交互关系,并映射到相应的视图平面,以视图为容器建立相应的领域元模型。该方法融合了视图、特征、构件三维关系。阐述了CNC元建模的过程,包括结构元建模、功能元建模及非功能元建模三个方面。以一个车床CNC系统的模型应用为例验证了CNC元建模方法及建模过程的正确性,为CNC系统的个性化定制和快速开发提供了新的方法。zDpag8879环亚手机|首页主页

关键词:计算机数控系统元建模;特征;构件;实时性zDpag8879环亚手机|首页主页

中图分类号:TH128? ????文献标识码:A????? 文章编号:1004-731X (2017) 06-1186-07zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706004zDpag8879环亚手机|首页主页

Meta Modeling Methodology for CNC SystemzDpag8879环亚手机|首页主页

Xiao SuhuazDpag8879环亚手机|首页主页

(College of Electromechanical Engineering, Guangdong Polytechnic Normal University, Guangzhou 510635, China)zDpag8879环亚手机|首页主页

Abstract: Methodology development of CNC system takes the field as a carrier centric model, which applies UML / OCL in GME for CNC system meta-modeling. For the field characteristic analysis for CNC, a CNC field oriented CNCVFC meta-modeling methodology was proposed, which combined the view, feature, component three-dimensional relationship. According to field characterization CNC members and interactions, multi-view approach captures features CNC field was adopted, which mapped to the appropriate view plane to establish the appropriate view of the container field meta-model, CNC elaborated meta-modeling process, including structural meta-modeling, function meta-modeling and non-functional meta-modeling of three areas. A lathe CNC system model was used as an example to verify the correctness of the meta-modeling methodology and modeling process for the CNC system customization and rapid development which provided a new methodology.zDpag8879环亚手机|首页主页

Keywords: CNC; meta-modeling; feature; component; real-timezDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

基于LWR-ABCSVRWiFi指纹定位算法zDpag8879环亚手机|首页主页

艳,殷富成,纪志成,严大虎zDpag8879环亚手机|首页主页

(江南大学物联网技术应用教育部工程研究中心,无锡 214122)zDpag8879环亚手机|首页主页

摘要:针对在WiFi环境下,传统的位置指纹定位算法定位精度不够高和指纹数据库构建困难的问题提出了一种基于线性加权回归(LWR)和蜂群优化的支持向量回归机(ABCSVR)LWR-ABCSVR定位算法。该算法通过LWR在离线阶段对采集到的位置指纹数据库进行扩充;利用ABCSVR构建物理位置和RSS之间的非线性关系,并通过构建的预测模型完成定位。实验结果表明,该算法的定位精度远高于传统的几种定位算法,并且可以在一定程度上减少构建指纹数据库的工作量,是一种综合性能良好的定位算法。zDpag8879环亚手机|首页主页

关键词:WiFiLWR算法;ABC算法;SVR算法;定位技术zDpag8879环亚手机|首页主页

中图分类号:TP391.9????? 文献标识码:A?????? 文章编号:1004-731X (2017) 06-1193-08zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706005zDpag8879环亚手机|首页主页

Fingerprinting Positioning Algorithm for WiFi Based on Locally Weighted Regression and Support Vector Regression Optimized by Artificial Bee ColonyzDpag8879环亚手机|首页主页

Wang Yan, Yin Fucheng, Ji Zhicheng, Yan DahuzDpag8879环亚手机|首页主页

(Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Wuxi 214122, China)zDpag8879环亚手机|首页主页

Abstract: Since the traditional location fingerprinting algorithms have poor positioning accuracy and cost laborious efforts constructing fingerprinting database during the offline phase, a novel LWR-ABCSVR positioning algorithm was proposed, that the derived algorithm was based on the locally weighted regression (LWR) method and support vector regression was optimized by artificial bee colony (ABCSVR) algorithm. By using the proposed algorithm, the fingerprinting database was expanded by LWR step. The ABCSVR algorithm was employed to build the nonlinear relationship between the RSS values of reference points and their locations. The position of mobile terminal was predicted by the constructed model. Simulation results indicate that the proposed algorithm performs better than traditional location fingerprinting algorithms, in terms of positioning accuracy and database constructing costs.zDpag8879环亚手机|首页主页

Keywords: WiFi; LWR algorithm; ABC algorithm; SVR algorithm; positioning techniquezDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

弹道中段微多普勒分离与提取仿真研究zDpag8879环亚手机|首页主页

王义哲,冯存前,李靖卿zDpag8879环亚手机|首页主页

(空军工程大学防空反导学院,陕西 西安 710051)zDpag8879环亚手机|首页主页

摘要:针对弹道中段弹头和碎片的微多普勒信息在多普勒谱中交缠重叠、难以分离与提取的问题,提出了一种基于完备总体经验模态分解(CEEMD)和改进自适应Viterbi算法相结合的多目标微多普勒信号分离与提取方法。通过分析进动弹头与旋转碎片微多普勒分布的差异性,对多目标回波信号进行CEEMD分解,结合小波阈值去噪方法,对各本征模态函数(IMF)进行分层处理并累加,分离出了弹头和碎片回波。对碎片信号进行了扩展处理,利用改进自适应Viterbi算法,抽取出相应的最优路径,实现多目标信号分离与微多普勒提取。仿真表明,该方法能有效克服多目标之间的干扰及噪声的影响,较好地实现了弹道多目标分离及微多普勒提取。zDpag8879环亚手机|首页主页

关键词:微多普勒;完备总体经验模态分解;多目标;Viterbi算法;特征提取zDpag8879环亚手机|首页主页

中图分类号:TN95 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 06-1201-09zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706006zDpag8879环亚手机|首页主页

Research on Simulation of Multi-target Micro-Doppler Separation and Extraction in Ballistic MidcoursezDpag8879环亚手机|首页主页

Wang Yizhe, Feng Cunqian, Li JingqingzDpag8879环亚手机|首页主页

(Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China)zDpag8879环亚手机|首页主页

Abstract: Aiming at the intricate overlap and difficult separation and extraction of micro-Doppler information in Doppler spectra of warheads and fragments in midcourse, a novel method based on CEEMD and improved self-adaptive Viterbi algorithm was proposed. By analyzing the differences of micro-Doppler distribution between warheads and fragments, the echo was decomposed by CEEMD and each IMF was denoised by wavelet threshold denoising method, resulting in separation of warheads and fragments echo. The fragments signal was stretched, the optimal path was extracted combined with improved self-adaptive Viterbi algorithm, and the separation of multi-target signal and extraction of micro-Doppler was realized. Simulation validates that the proposed method can overcome the interference among multi-target and noise, which can achieve multi-target signal separation and micro-Doppler extraction well.zDpag8879环亚手机|首页主页

Keywords: micro-Doppler; CEEMD; multi-target; Viterbi algorithm; feature extractionzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

修整金刚笔磨损智能预测方法研究zDpag8879环亚手机|首页主页

迟玉伦,李郝林,岳泰zDpag8879环亚手机|首页主页

(上海理工大学,上海 200093)zDpag8879环亚手机|首页主页

摘要:在精密磨削加工过程中,为了使砂轮保持锐利程度及正确的几何形状,需要对砂轮及时修整。如何有效预测金刚笔修整磨损一直是磨削加工中的一个技术难题。根据金刚笔修整磨损机理分析,提出了基于声发射信号的串行优化算法支持向量机(SMO-SVM)金刚笔修整磨损预测方法,利用小波包算法对声发射信号特征信息进行提取,建立了将小波包提取的声发射信号特征量作为的输入SMO-SVM的金刚笔磨损预测模型;实验结果表明基于声发射信号的SMO-SVM模型对金刚笔磨损前后的预测准确性达到95.257 1%以上。zDpag8879环亚手机|首页主页

关键词:金刚笔磨损;SMO-SVM;智能预测;实验研究zDpag8879环亚手机|首页主页

中图分类号:TH123????? 文献标识码:A?????? 文章编号:1004-731X (2017) 06-1210-08zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706007zDpag8879环亚手机|首页主页

Study on Single-point Dresser Wear Intelligent Prediction MethodzDpag8879环亚手机|首页主页

Chi Yulun, Li Haolin, Yue TaizDpag8879环亚手机|首页主页

(University of Shanghai for Science and Technology, Shanghai 200093, China)zDpag8879环亚手机|首页主页

Abstract: In precision grinding process, grinding wheel should be dressed in time to keep the wheel sharpness and correct geometry. Now, it is still a difficult problem how to effectively predict the dresser wear in process. According to the single-point dresser wear mechanism, a method was proposed to predict the single-point dresser wear based on the acoustic emission signal and the sequential minimal optimization support vector machines (SMO-SVM) model. The wavelet packet algorithm was used to exact acoustic emission signal characteristic information. According to the large sample of acoustic emission signal, the sequential minimal optimization support vector machines (SMO-SVM) model was established to predict single-point dresser wear, and the signal characteristic information is as input for SMO-SVM model. The experiment result shows that the model’s accuracy is above 95.257 1%.zDpag8879环亚手机|首页主页

Keywords: single-point dresser wear; SMO-SVM; intelligent prediction; experimentzDpag8879环亚手机|首页主页

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非对称坐标系下SVPWM调制算法zDpag8879环亚手机|首页主页

马帅旗,张鹏超zDpag8879环亚手机|首页主页

(陕西理工大学电气工程学院陕西 汉中 723000)zDpag8879环亚手机|首页主页

摘要:针对空间矢量脉宽调制算法需要进行复杂三角函数运算问题,提出了一种非正交坐标系下SVPWM优化算法。该算法通过Clark变换、非对称坐标系变换和标幺化等处理,简化了参考矢量在六边形大扇区、第I扇区中小三角形区域判断,优化了基本工作矢量的作用时间计算并将其它5个大扇区内参考矢量的区域判断和作用时间计算映射至第I扇区,实现区域判断和作用时间计算的归一化处理。该算法可以有效地减少SVPWM算法的运算量,降低开关频率,减小开关损耗。仿真结果验证了设计方法的有效性和正确性。zDpag8879环亚手机|首页主页

关键词:三电平逆变器;空间矢量脉宽调制;标幺化;非正交坐标系zDpag8879环亚手机|首页主页

中图分类号:V241? ????文献标识码:A??? ??文章编号:1004-731X (2017) 06-1218-05zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706008zDpag8879环亚手机|首页主页

SVPWM Algorithm Based on Non-orthogonal CoordinateszDpag8879环亚手机|首页主页

Ma Shuaiqi, Zhang PengchaozDpag8879环亚手机|首页主页

(School of Electrical Engineering, Shaanxi sci-tech University, Hanzhong 723000, China)zDpag8879环亚手机|首页主页

Abstract: As to the issue of complex trigonometric calculation for conventional SVPWM modulation algorithms, an SVPWM optimization algorithm in non-orthogonal coordinate system was proposed. By using Clark, Non-orthogonal Coordinate and per unit transformation, the algorithm simplified the regional judgment of reference vector in the sectors and triangle and optimized the calculation of basic vector action time. It realized normalization of three vectors times by using a normalization algorithm for mapping other sectors to I sector. The algorithm can effectively reduce the amount of SVPWM algorithm calculation, switching frequency, and switching losses. Simulation results show that the algorithm is effectiveness and correctness.zDpag8879环亚手机|首页主页

Keywords: three-lever inverter; space vector pulse width modulation; per unit; non-orthogonal coordinate framezDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

柔性关节空间机器人自适应模糊鲁棒H控制zDpag8879环亚手机|首页主页

张丽娇1,2,陈力1,2zDpag8879环亚手机|首页主页

(1、福州大学机械工程及自动化学院,福州 3501082、福建省高端装备制造协同创新中心,福州 350116)zDpag8879环亚手机|首页主页

摘要:为了解决参数未知情况下柔性关节空间机器人关节运动与关节柔性振动主动抑制的问题。引入一种关节柔性补偿器,以提高关节的等效刚度;之后,采用奇异摄动理论将系统分解为快、慢变子系统。为慢变子系统设计了自适应模糊H∞控制,用模糊逻辑系统逼近系统不确定项的同时,采用H鲁棒控制项来克服模糊逼近遗留的误差对输出跟踪误差的影响。为快变子系统采用速度差值反馈控制律来抑制关节柔性引起的系统弹性振动。仿真表明,所设计的控制算法能够精确、稳定地控制空间机器人的关节运动的同时,主动抑制关节柔性振动;证实了控制算法的有效性。zDpag8879环亚手机|首页主页

关键词:柔性关节空间机器人;关节柔性补偿器;自适应模糊;H鲁棒控制zDpag8879环亚手机|首页主页

中图分类号:TP241 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 06-1223-06zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706009zDpag8879环亚手机|首页主页

Adaptive Fuzzy Robust H∞ Control of Flexible-joint Space RobotzDpag8879环亚手机|首页主页

Zhang Lijiao1,2, Chen Li1,2zDpag8879环亚手机|首页主页

(1. School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China; 2. Collaborative Innovation Center of High End Equipment Manufacturing, Fuzhou 350116, China)zDpag8879环亚手机|首页主页

Abstract: In order to solve the problem of trajectory tracking and vibration suppression control for parameter unknown flexible-joints space robot system, a joint flexibility compensation controller was introduced to improve the equivalent stiffness of the joint; by using the singular perturbation method, the system was decomposed into a slow subsystem and a fast subsystem. For the slow subsystem, the adaptive fuzzy H∞ control algorithm was designed; by using the fuzzy logic system to approximate the system uncertainty, a robust H∞ control was used to eliminate the influence of the fuzzy approximation legacy of error to the output tracking error. For the fast subsystem, the speed difference between the feedback control law was used to suppress the elastic vibration of flexible joints which was caused by system. Numerical simulation results show that the proposed control algorithm can control the joint tracking of the space robot with flexible joints accurately and steadily, and suppress actively vibration of flexible joints, which proves the validity of the controller.zDpag8879环亚手机|首页主页

Keywords: flexible-joints space robot; joint flexibility compensation controller; adaptive fuzzy; H∞ robust controlzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

改进二维OTSU和自适应遗传算法的红外图像分割zDpag8879环亚手机|首页主页

王坤,张杨,宋胜博,诸葛晶昌zDpag8879环亚手机|首页主页

(中国民航大学,天津 300300)zDpag8879环亚手机|首页主页

摘要:为提高电路板热红外图像分割效果,解决电路板故障诊断的问题,提出了一种将自适应遗传算法和改进二维OTSU算法相结合的新算法。自适应遗传算法采取快速排序法,利用遗传代数的变化改进交叉、变异概率;根据邻域像素点与中心像素点之间的距离对二维OTSU邻域均值算法的比例系数进行加权,判断噪声点并对热红外图像进行降噪处理;引入类内方差法,对阈值进行优化。利用了遗传算法的并行性和强大的空间搜索能力,提高了二维OTSU的阈值查找速度,提高了热红外图像的分割效率。实验结果表明,该算法提高了热红外图像的分割准确度,有一定的应用前景。zDpag8879环亚手机|首页主页

关键词:自适应遗传算法;二维OTSU;热红外图像;电路板卡zDpag8879环亚手机|首页主页

中图分类号:TP391.9???? ??文献标识码:A?????? 文章编号:1004-731X (2017) 06-1229-08zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706010zDpag8879环亚手机|首页主页

Infrared Image Segmentation Based on Improved Dimensional OTSU and Genetic AlgorithmzDpag8879环亚手机|首页主页

Wang Kun, Zhang Yang, Song Shengbo, Zhuge JingchangzDpag8879环亚手机|首页主页

(Civil Aviation University of China, Tianjin 300300, China)zDpag8879环亚手机|首页主页

Abstract: In order to improve the image segmentation of circuit board, and solve the problem of circuit board fault diagnosis, a new algorithm combines adaptive genetic algorithm and improved two-dimensional OTSU algorithm was proposed. a fast sorting method, in accordance with changes in the genetic algebraic, crossover and mutation probability was improved; according to the distance between the center and neighboring pixels pixel for the neighborhood average algorithm to weight the scale factor, on the basis of judgment on noise point of thermal infrared image to reduce noise; and introduced into the class variance method to solve the equation for the threshold to optimize. The new algorithm uses a genetic algorithm parallelism and powerful spatial search capability, improving dimensional OTSU threshold search speed and improving the efficiency of thermal infrared image segmentation. Experimental results show that the algorithm improves the accuracy of thermal infrared image segmentation, there are certain applications.zDpag8879环亚手机|首页主页

Keywords: adaptive genetic algorithm; two-dimensional OTSU; thermal infrared image; circuit boardszDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

混合动力车辆硬件在环测试系统研究zDpag8879环亚手机|首页主页

闫斌1,鄢挺1,杨林1,陈亮2,周维1zDpag8879环亚手机|首页主页

(1. 上海交通大学机械与动力工程学院,上海 2002402. 上海凌翼动力科技有限公司,上海 200240)zDpag8879环亚手机|首页主页

摘要:控制系统对混合动力车辆的加速性、驾驶性、可靠性等有很大的影响。在整个研发过程中,为了保证系统的可靠性和安全性等多种性能指标需要进行全面地测试。基于软件的测试虽然操作简单,灵活性好,但是只能对控制策略的基本功能进行逻辑验证,没有对实际控制器硬件对控制的影响的方面考虑,且在控制器实时测试方面还存在欠缺。基于硬件在环的方法可以克服这一缺点,能够系统全面地对控制器进行测试。基于RT-LAB的平台,针对混合动力控制器建立了测试环境,分别通过软件在环和硬件在环的测试结果进行比较,有效显示出硬件在环测试能够更真实地反应控制效果。zDpag8879环亚手机|首页主页

关键词:硬件在环;混合动力车辆;测试系统;RT-LABzDpag8879环亚手机|首页主页

中图分类号:U467.5 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 06-1237-08zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706011zDpag8879环亚手机|首页主页

Development of Hybrid Electric Vehicle Hardware-in-the-loop Testing SystemzDpag8879环亚手机|首页主页

Yan Bin1, Yan Ting1, Yang Lin1, Chen Liang2, Zhou Wei1zDpag8879环亚手机|首页主页

(1. School of Mechanical Engineering of Shanghai Jiao Tong University, Shanghai 200240, China;zDpag8879环亚手机|首页主页
2. Shanghai 01 Power Technology Co. Ltd, Shanghai 200240, China)
zDpag8879环亚手机|首页主页

Abstract: Control system has significant influence on Hybrid Electric Vehicles (HEV) acceleration performance, drivability and reliability. In order to ensure system reliability and safety, an elaborate test was done for different performance indexes in the process of system development. Though software-based test has some advantage in testing process and flexibility, it is only able to achieve logical verification on basic function of control strategy. Besides, it does not take into account of the effect of controller hardware, and has some limitation in real-time testing. Instead, hardware-in-the-loop (HIL) can overcome these shortages, can test systematically for controller. HEV test environment was built for hybrid control unit (HCU) based on RT-LAB platform. Matlab-in-the-loop (MIL) test and HIL test was carried out respectively. The test results show HIL has realistically reflect control effect of HCU.zDpag8879环亚手机|首页主页

Keywords: HIL; HEV; testing system; RT-LABzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

武器装备作战效能仿真系统WESSzDpag8879环亚手机|首页主页

雷永林,姚剑,朱宁,朱一凡,王维平zDpag8879环亚手机|首页主页

(国防科学技术大学信息系统与管理学院仿真工程研究所,湖南 长沙 410073)zDpag8879环亚手机|首页主页

摘要:作战效能仿真是进行装备论证与总体设计的重要技术手段。针对传统作战效能仿真系统在模型可重用、仿真可组合、系统可演化等方面存在的不足,结合自身实际并参照国外经验提出了基于模型框架的效能仿真系统开发思路,并据此开发了一款通用型可扩展的武器装备作战效能仿真系统WESS介绍了WESS的功能特点、软件结构、使用流程和关键技术,并通过一个典型案例介绍了WESS的功能。实际应用表明WESS系统能够较好地满足效能仿真的可重用、可组合、可演化需求。zDpag8879环亚手机|首页主页

关键词:作战效能仿真;模型框架;认知行为建模;WESS;空战案例zDpag8879环亚手机|首页主页

中图分类号:TP391.9 ??????文献标识码:A?????? 文章编号:1004-731X (2017) 06-1244-09zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706012zDpag8879环亚手机|首页主页

Weapon Effectiveness Simulation System (WESS)zDpag8879环亚手机|首页主页

Lei Yonglin, Yao Jian, Zhu Ning, Zhu Yifan, Wang WeipingzDpag8879环亚手机|首页主页

(Institute of Simulation Engineering, College of Information System and Management, National University of Defence Technology, Changsha 410073, China)zDpag8879环亚手机|首页主页

Abstract: Combat Systems Effectiveness Simulation (CESS) is an important supportive means to combat systems analysis and conceptual design. When confronted with issues like model reusability, simulation composability, and system evolvability, traditional approaches to develop CESS systems find their limitations. Based on years experiences in CESS field and best practices found in overseas CESS simulation systems, a model architecture based CESS modeling methodology was proposed. Around a sophisticated CESS model architecture, a generic CESS system, named WESS, was realized. The functional features, software architecture, application processes, and key aspects of WESS were introduced. A typical case study demonstrates the functionalities of WESS. Practical applications tell WESS is able to help modelers to achieve those aims important to CESS including reusability, composability, and evolvability.zDpag8879环亚手机|首页主页

Keywords: combat systems effectiveness simulation; model architecture; cognitive behavior modeling; WESS; air-combating simulation examplezDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

用于传导噪声预估的全电路仿真平台研究zDpag8879环亚手机|首页主页

叶尚斌,张佳佳,张逸成,姚勇涛zDpag8879环亚手机|首页主页

(同济大学电子与信息工程学院,上海 201804)zDpag8879环亚手机|首页主页

摘要:由于电动汽车用功率变换器的传导噪声频段比普通工业设备更严酷,需要一种适用于宽频率范围的传导噪声预评估仿真建模方法。提出了基于器件模型的全电路传导噪声建模方法,其中有源器件模型能够仿真其高频动态特性,无源器件模型实现了全频段阻抗特性的精确描述,母排结构分布参数和近场耦合参数模型能模拟其对传导噪声耦合路径的影响。在此基础上,搭建了车用BOOST变换器传导噪声全电路仿真平台,在不同占空比条件下进行仿真与测试验证,结果显示仿真与实测的整体误差较小,实现了传导EMI预估,并通过理论分析确定高频误差的主要来源zDpag8879环亚手机|首页主页

关键词:传导噪声预估;器件级模型;DC/DC变换器;电动汽车zDpag8879环亚手机|首页主页

中图分类号:TP391.9????? 文献标识码:A?????? 文章编号:1004-731X (2017) 06-1253-07zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706013zDpag8879环亚手机|首页主页

Research on Full-circuit Simulation Platform for Conducted Noise Pre-evaluationzDpag8879环亚手机|首页主页

Ye Shangbin, Zhang Jiajia, Zhang Yicheng, Yao YongtaozDpag8879环亚手机|首页主页

(School of Electronics and Information Engineering, Tongji University, Shanghai 201804, China)zDpag8879环亚手机|首页主页

Abstract: As conducted noise frequency band of power convertor in electric vehicle is stricter than that in normal industrial equipment, a conducted noise simulation modeling method is needed which is suit for wide frequency range. A full-circuit conducted noise modeling method based on component model was proposed, in which high frequency dynamic characteristic was simulated by the active device model, complex impedance characteristic at full frequency band was described by the passive model, distributed parameter of bus structure and near-field coupling parameter were extracted to simulate their influence on coupling path of conducted noise. On the basis, full-circuit simulation platform for conducted noise of on-board DC/DC converter was built. Verification of simulated and measured result was realized at different duty cycle. It is shown that overall error between model simulation result and test result is relatively small, thus pre-evaluation for EMI is realized. And main source of errors at high frequency is determined by theoretical analysis.zDpag8879环亚手机|首页主页

Keywords: conducted noise pre-evaluation; component level model; DC/DC converter; electric vehiclezDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

基于速度感知的MANET概率路由zDpag8879环亚手机|首页主页

陈耀华1,彭凌西2,古鹏2zDpag8879环亚手机|首页主页

(1. 广州大学机械与电气工程学院,广东 广州 5100062. 广州大学计算机科学与教育软件学院,广东 广州 510006)zDpag8879环亚手机|首页主页

摘要:针对移动自组网(Mobile Ad Hoc NetworkMANET)中路由的广播风暴问题,提出了基于速度感知的可靠的概率路由发现(Speed-aware-based reliable probabilistic route discoverySRPR)方案。SRPR方案利用节点的速度矢量信息,将节点划分为可靠节点和非可靠节点。再利用贪婪转发策略,将可靠节点集中选择离目标节点最近的节点赋予高的转发概率,进而提高路由的可靠性,降低路由跳数。将SPRP方案应用于典型的按需式距离矢量路由协议(Ad Hoc On-demand Distance VectorAODV)进行仿真。仿真结果表明,提出的SPRP方案能够有效缓解广播风暴问题,降低控制包(Routing requestsRREQ)的重传次数,并减少碰撞率。zDpag8879环亚手机|首页主页

关键词:移动自组网;概率路由;速度;贪婪转发;按需式距离矢量路由zDpag8879环亚手机|首页主页

中图分类号:TPT393? ?????文献标识码:A??? ???文章编号:1004-731X (2017) 06-1260-08zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706014zDpag8879环亚手机|首页主页

Speed-aware-based Reliable Probabilistic Route in MANETzDpag8879环亚手机|首页主页

Chen Yaohua1, Peng Lingxi2, Gu Peng2zDpag8879环亚手机|首页主页

(1. School of Mechanical & Electric Engineering, Guangzhou University, Guangdong 510006, China; 2. School of Computer Science and Educational Software, Guangzhou University, Guangdong 510006, China)zDpag8879环亚手机|首页主页

Abstract: For broadcast problem of routing in MANET, speed-aware-based reliable probabilistic route discovery (SRPR) scheme was proposed. SRPR considered speed vector and all nodes were divided into reliable nodes and un-reliable nodes. A node among reliable nodes closest to destination was assigned a high probabilistic routing decision by greedy forwarding strategy. The reliability of routing was improved and the number of routing hop was reduced by SRPR scheme. Ad Hoc On-demand Distance Vector (AODV) routing was adopted in the experiments. Simulation results show that the proposed routing protocol mitigates the broadcast storm problem and outperforms in term of number of re-transmission collision ratio of RREQ.zDpag8879环亚手机|首页主页

Keywords: MANET; probabilistic route; speed; greedy forwarding; ad hoc on-demand distance vector routingzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

骨干双粒子群算法求解柔性作业车间调度问题zDpag8879环亚手机|首页主页

戴月明,王明慧,王春,王艳zDpag8879环亚手机|首页主页

(江南大学教育部物联网技术应用工程研究中心,江苏 无锡 214122)zDpag8879环亚手机|首页主页

摘要:针对柔性作业车间调度问题,以最小化最大完工时间为优化目标,提出了一种骨干双粒子群算法(Double Bare Bones Particle Swarm AlgorithmDBBPSO)。算法结合基于冯诺依曼拓扑结构的改进骨干粒子群算法与基于混沌变异的骨干粒子群算法,利用种群交流机制使两个种群协同进化,实现了算法在全局搜索与局部开发之间的平衡,并提出一种基于最小加工时间的机器选择策略。将所提算法在四个经典算例与一个柔性作业车间调度实例上与其他不同算法进行仿真对比,结果表明所提算法比其他对比算法具有更好的寻优能力,更适合解决该类调度问题。zDpag8879环亚手机|首页主页

关键词:柔性作业车间调度;骨干双粒子群算法;协同进化;机器选择策略zDpag8879环亚手机|首页主页

中图分类号:TP278????? 文献标识码:A?????? 文章编号:1004-731X (2017) 06-1268-09zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706015zDpag8879环亚手机|首页主页

Double Bare Bones Particle Swarm Algorithm for Solving Flexible Job-shop Scheduling ProblemzDpag8879环亚手机|首页主页

Dai Yueming, Wang Minghui, Wang Chun, Wang YanzDpag8879环亚手机|首页主页

(Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Jiangnan University, Wuxi 214122, China)zDpag8879环亚手机|首页主页

Abstract: To solve flexible job shop scheduling problem, a double bare bones particle swarm algorithm (DBBPSO) was proposed to minimize the makespan. Combining Von-neumann bare bones particle swarm optimization algorithm and chaotic mutation bare bones particle swarm optimization algorithm, the algorithm DBBPSO used a communication method to cooperate evolution. This approach could keep balance between global exploration and local exploration, and a machine selection method was proposed based on the tenet of minimizing makespan. The proposed algorithm was compared with other algorithms on four benchmark problems and a scheduling optimization example. Simulation results indicate that the improved algorithm has the ability to obtain the optimal solution, and it is more suitable for solving the scheduling problem.zDpag8879环亚手机|首页主页

Keywords: flexible job-shop scheduling; double bare bones particle swarm optimization; cooperate evolution; machine selectionzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

基于随机集理论的相关变量模型不确定性量化zDpag8879环亚手机|首页主页

赵亮1,杨战平2zDpag8879环亚手机|首页主页

(1.西南科技大学信息工程学院,四川 绵阳 6210102.电子工程研究所,四川 绵阳 621900)zDpag8879环亚手机|首页主页

摘要:随机集理论为基于模型的系统分析提供了一种统一的不确定性量化框架。针对现有随机集理论模型不确定性量化研究中缺乏对模型变量相关性的考虑这一不足,提出了一种改进的基于随机集理论的不确定性量化方法。该方法根据模型变量间的相关系数信息,通过Nataf变换产生相关随机样本,进而获取多维空间内焦元的联合基本概率分配。由此所得的不确定性量化结果能够在模型变量间存在相关性的情况下正确反映系统状况。数值仿真证明了所提方法的有效性。zDpag8879环亚手机|首页主页

关键词:随机集理论;不确定性量化;相关性;Nataf变换zDpag8879环亚手机|首页主页

中图分类号:TP391.9????? 文献标识码:A?????? 文章编号:1004-731X (2017) 06-1277-07zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706016zDpag8879环亚手机|首页主页

Model Uncertainty Quantification for Dependent Variables Based on Random Set TheoryzDpag8879环亚手机|首页主页

Zhao Liang1, Yang Zhanping2zDpag8879环亚手机|首页主页

(1.Southwest University of Science and Technology, School of Information Engineering, Mianyang 621010, China; 2.Institute of Electronic Engineering, Mianyang 621900, China)zDpag8879环亚手机|首页主页

Abstract: Random set theory provides a uniform mechanism for model uncertainty quantification in system analysis. An improved method was proposed based on random set theory for uncertainty quantification considering the dependence among system variables. The Nataf transformation was used to generate dependent random samples to be consistent with correlation coefficients information, and then the joint basic probability assignments for the multidimensional focal elements were calculated to construct the random set. The result of uncertainty quantification based on the random set can reflect the real system response under dependent variables. Simulation results show the presented method rationality.zDpag8879环亚手机|首页主页

Keywords: random set theory; uncertainty quantification; dependence; Nataf transformationzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

混合有源电力滤波器的状态反馈控制zDpag8879环亚手机|首页主页

王允建1,刘晓云1,张荣志2,薛娜娜1zDpag8879环亚手机|首页主页

(1. 河南理工大学电气工程与自动化学院,河南 焦作 4540002. 国家电投河南电力检修工程有限公司,河南 郑州 450000)zDpag8879环亚手机|首页主页

摘要:针对有源电力滤波器的电流跟踪,提出了采用状态反馈控制策略,应用于三相并联型混合有源电力滤波器系统,取代目前流行的PID控制,克服PID控制存在的超调大、补偿误差大的缺点。根据所选用混合有源电力滤波器的拓扑结构,建立了其数学模型,推导了反馈控制律,同时谐波电流检测采用ip-iq检测算法,直流侧电容电压稳定采用PI控制。采用Matlab/Simulink软件对HAPF系统进行仿真,并与传统的PI滞环比较控制方法进行对比,结果表明,该算法能够明显地改善系统的跟踪性能,提高有源滤波器的谐波补偿效果。zDpag8879环亚手机|首页主页

关键词:有源电力滤波器;状态反馈;电流跟踪控制;谐波补偿zDpag8879环亚手机|首页主页

中图分类号:TP391.9? ?????文献标识码:A??? ???文章编号:1004-731X (2017) 06-1284-07zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706017zDpag8879环亚手机|首页主页

State Feedback Control of Hybrid Active Power FilterzDpag8879环亚手机|首页主页

Wang Yunjian1, Liu Xiaoyun1, Zhang Rongzhi2, Xue Nana1zDpag8879环亚手机|首页主页

(1. School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China; 2. CPI Henan Power Overhaul Engineering Co. Ltd., Zhengzhou 450000, China)zDpag8879环亚手机|首页主页

Abstract: According to the current tracking of active power filter, a state feedback control strategy was applied to three-phase shunt hybrid active power filter system, replacing popular PID controller, to overcome the drawbacks of the PID controller, such as big overshoot, error compensation etc.. The mathematical model was established and the feedback control law was derived based on the topological structure of hybrid active power filter selected. Moreover, the current detection used ip-iq detection algorithm while the stability of capacitor voltage in DC side used PI control. MATLAB/Simulink was applied to simulate the HAPF system, comparing with the traditional PI hysteresis comparison control method. The results show that the state feedback control algorithm can obviously improve tracking performance of the system, and improve the harmonic compensation effect of APF.zDpag8879环亚手机|首页主页

Keywords: active power filter; state feedback; current tracking control; harmonic compensationzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

两种材料组合结构的削扁镗杆设计与仿真zDpag8879环亚手机|首页主页

谢峰,王文轩,雷小宝zDpag8879环亚手机|首页主页

(安徽大学电气工程与自动化学院,合肥 230601)zDpag8879环亚手机|首页主页

摘要:机床的镗刀杆因其受力结构为悬臂梁,极易产生振动,为了研究镗杆的减振问题,根据自激振动耦合型颤振原理以及受迫振动动力消振原理,将普通结构镗杆改进设计为内置减振芯的由两种材料组成的镗杆结构,同时根据将镗杆的小刚度主轴进行合理布置可以减振的原理,对该组合材料结构的镗杆进行了削扁,以期达到最优的减振效果。借助有限元分析软件建立了圆形结构、削扁结构、削扁组合材料结构三种不同类型的镗杆模型,在相同的工况下,对三种镗杆分别做静力学分析和动力学分析,对比仿真实验结果证明了组合材料结构的削扁镗杆具有更佳的减振效果。zDpag8879环亚手机|首页主页

关键词:镗削加工;减振镗杆;减振芯;削扁镗杆;有限元方法zDpag8879环亚手机|首页主页

中图分类号:TG53? ?????文献标识码:A?????? 文章编号:1004-731X (2017) 06-1290-07zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706018zDpag8879环亚手机|首页主页

Design and Simulation of Cut Flat Boring Bar by Both Materials’ Composite StructurezDpag8879环亚手机|首页主页

Xie Feng, Wang Wenxuan, Lei XiaobaozDpag8879环亚手机|首页主页

(Department of Electrical Engineering and Automation, Anhui University, Hefei 230601, China)zDpag8879环亚手机|首页主页

Abstract: Because the stressed structure of the boring bar in machine tool is a cantilever beam, and it is very easy to produce vibration. To study the vibration problem of boring bar, the general structure of boring bar was improved into the built-in damping core boring bar structure composed of two materials, according to the principle of self-excited vibration’s coupling flutter and forced vibration’s dynamic damping. At the same time, according to the principle that reasonable arrangement of small stiffness of the boring bar could reduce vibration, the composite structure boring bar was cut flat expecting to reach optimal damping effect. With the aid of finite element method software, three different types of boring bar models were established which were circular structure, cut flat structure and cut flat composite structure. In the same conditions, statics analysis and dynamic analysis of the three kinds of boring bar were done respectively. It shows that the structure of the composite material cutting flat boring bar has better damping effect by comparing the simulation results.zDpag8879环亚手机|首页主页

Keywords: boring machining; damping boring bar; damping core; cut flat boring bar; finite element methodzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

基于dSPACE系统的总线实时通讯方法设计zDpag8879环亚手机|首页主页

阎诚,霍德聪,谢松zDpag8879环亚手机|首页主页

(航天东方红卫星有限公司,北京 100094)zDpag8879环亚手机|首页主页

摘要:对利用dSPACE仿真器进行CAN总线实时通讯时所面临的问题进行了分析,提出了解决该问题的思路和方法。使用中断和使能两种触发方式,设计了基于dSPACECAN通讯接口模型。构建了卫星分系统仿真模型,按照星上CAN总线通讯协议,进行了实时仿真,实现了在分系统仿真模型与星务分系统之间进行大数据量通讯。仿真结果证明了本文设计的CAN通讯方法的有效性。zDpag8879环亚手机|首页主页

关键词:dSPACE;实时仿真;CAN通讯;触发方式zDpag8879环亚手机|首页主页

中图分类号:TP337????? 文献标识码:A?????? 文章编号:1004-731X (2017) 06-1297-08zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706019zDpag8879环亚手机|首页主页

Design of Real-time Communication on Bus Using dSPACE SystemzDpag8879环亚手机|首页主页

Yan Cheng, Huo Decong, Xie SongzDpag8879环亚手机|首页主页

(DFH Satellite Co., Ltd, Beijing 100094, China)zDpag8879环亚手机|首页主页

Abstract: The analysis of the problem of real-time communication on CAN bus was proposed using dSPACE simulator, and the solution was proposed. The CAN communication model based on dSPACE was designed using the methods of Interrupt or Enable to trigger the action. The spacecraft subsystem simulation model was built on the dSPACE, and the real-time communication was performed following the spacecraft CAN bus communication protocol, to implement the communication with large amount of data between subsystem simulation model and data handling subsystem. The simulation result verifies the validity of the communication method.zDpag8879环亚手机|首页主页

Keywords: dSPACE; real-Time simulation; CAN communication; trigger methodzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

融合多特征的运动目标特征提取方法zDpag8879环亚手机|首页主页

栾悉道1,谢毓湘2*,张芯2,牛晓2zDpag8879环亚手机|首页主页

(1. 长沙大学数学与计算机科学系湖南 长沙 4100032. 国防科学技术大学信息系统与管理学院湖南 长沙 410073)zDpag8879环亚手机|首页主页

摘要:运动目标的特征提取是运动目标分类的基础。仅依赖于单特征进行运动目标分类容易受到目标区域检测精度不准确、目标角度、尺度变化以及噪声干扰等因素影响,从而造成分类准确度降低。为克服上述缺点,提高算法的鲁棒性,提出了融合宽高比特征、旋转不变均匀局部二值模式特征以及尺度不变特征(SIFT特征)的运动目标特征提取算法,并在此基础上基于支撑向量机和K近邻方法对运动目标进行分类。实验表明,采用融合多特征的运动目标特征提取方法能够显着提高运动目标的平均分类准确率。zDpag8879环亚手机|首页主页

关键词:运动目标;特征提取;局部二值模式;尺度不变特征SIFTzDpag8879环亚手机|首页主页

中图分类号:TP39? ????文献标识码:A????? 文章编号:1004-731X (2017) 06-1304-07zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706020zDpag8879环亚手机|首页主页

Motion Object Feature Extraction Method Based on Multi-feature FusionzDpag8879环亚手机|首页主页

Luan Xidao1, Xie Yuxiang2*, Zhang Xin2, Niu Xiao2zDpag8879环亚手机|首页主页

(1. College of Computer Engineering and Applied Mathematics, Changsha University, Changsha 410003, China; 2. College of Information Systems and Management, National University of Defense Technology, Changsha 410073, China)zDpag8879环亚手机|首页主页

Abstract: Motion object feature extraction is the basis of motion object classification. Traditionally motion object classification mainly depends on single feature extraction which is sensitive to the aspects like motion object detection area, angle, scale and noise disturbance, thus decreases the classification efficiency. To solve these problems and improve the robustness of the algorithms, a motion object feature extraction method based on multi-feature fusion was proposed. In this method, width height ratio feature, rotation invariant uniform local binary pattern feature and SIFT feature were considered, and by fusing them into the SVM and KNN classifier, motion object classification was carried out. Experiments prove that the motion object feature extraction method can greatly improve the average classification precision.zDpag8879环亚手机|首页主页

Keywords: motion object; feature extraction; local binary pattern; scale-invariant feature transform (SIFT)zDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

基于数值仿真的引信前冲过载泡沫铝缓冲性能分析zDpag8879环亚手机|首页主页

虞跨海1,张旭辉1,徐红玉1,李蓉2,康兴国2zDpag8879环亚手机|首页主页

(1. 河南科技大学工程力学系,河南 洛阳 4710232. 西安机电信息研究所,陕西 西安 710065)zDpag8879环亚手机|首页主页

摘要:采用特定孔隙结构泡沫铝垫片以冲击隔离方式实现引信在前冲过载下的缓冲保护基于数值仿真方法开展了缓冲有效性分析建立某型火箭弹侵彻三层混凝土靶标数值仿真模型,通过引信过载仿真曲线与试验结果对比校核数值模型,数值方法分析了不同泡沫铝类型和缓冲结构对引信过载的弱化作用结果表明:泡沫铝可有效降低引信过载,孔隙率和厚度存在最佳设计值使其缓冲效率达到最高;泡沫铝夹层结构对引信保护效果更佳,其结构特性可有效减弱或避免高过载下单层泡沫铝易被压实失去保护作用的问题。研究成果为引信结构尤其缓冲结构的设计提供参考zDpag8879环亚手机|首页主页

关键词:数值仿真;侵彻;缓冲;泡沫铝zDpag8879环亚手机|首页主页

中图分类号:TJ43+1.5TJ714TH12 ???文献标识码:A??? 文章编号:1004-731X (2017) 06-1311-06zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706021zDpag8879环亚手机|首页主页

Numerical Simulation of Aluminum Foam Cushion Performance Analysis on Set-forward Overload of FuzezDpag8879环亚手机|首页主页

Yu Kuahai1, Zhang Xuhui1, Xu Hongyu1, Li Rong2, Kang Xingguo2zDpag8879环亚手机|首页主页

(1. Department of Engineering Mechanics, Henan University of Since and Technology, Luoyang 471023, China; 2. Xi’an Institute of Electromechanical Information Technology, Xi’an 710065, China)zDpag8879环亚手机|首页主页

Abstract: Buffering protect of fuze under high-speed impact was realized using aluminum foam gasket with special pore structure, and numerical simulation method to achieve the buffer validity analysis. Numerical model of three-layered concrete target projectile penetration was established, and the numerical model was validated to be accurate by comparing the fuze acceleration curves of simulation and experiment results. Numerical simulations were completed to predict the cushioning effect for different foamed aluminum structures. The result reveals that foamed aluminum cushioning can reduce the load of the fuze, and the foam’s void ratio and thickness will significantly affect the cushioning performance, and exits a best design value to achieve the highest efficiency. Furthermore, the foamed aluminum sandwich structure has a better cushioning performance than monolayer foam, their special structure can effectively weaken or avoid the problem which single-layer aluminum foam may easily lose protect function due to compaction. The research results can provide design reference for fuze especially buffer structure.zDpag8879环亚手机|首页主页

Keywords: numerical simulation; penetration; cushioning; foamed aluminumzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

基于SystemVue的雷达信号环境建模与实现zDpag8879环亚手机|首页主页

刘利民,程呈,韩壮志zDpag8879环亚手机|首页主页

(军械工程学院电子与光学工程系,河北 石家庄 050003)zDpag8879环亚手机|首页主页

摘要:针对电子对抗仿真系统中的电子侦察子系统的实际需求,并根据现代战争中电子侦察形式、对抗双方战术布局,提出了一种电子对抗中雷达信号环境的建模方法,用于为电子侦察子系统提供混合信号源。介绍了信号建模原理,在航迹层定义雷达平台、目标平台与接收机平台的位置信息,在天线层定义角度信息以及在信号层对雷达信号建模,并利用SystemVue软件实现了模拟雷达对抗信号环境。仿真结果证明了该方法的正确性与可实现性。zDpag8879环亚手机|首页主页

关键词:电子对抗;雷达信号;建模;仿真;SystemVuezDpag8879环亚手机|首页主页

中图分类号:TN391.9????? 文献标识码:A?????? 文章编号:1004-731X (2017) 06-1317-10zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706022zDpag8879环亚手机|首页主页

Modeling and Realization of Radar Signal Environment Based on SystemVuezDpag8879环亚手机|首页主页

Liu Limin, Cheng Cheng, Han ZhuangzhizDpag8879环亚手机|首页主页

(Department of Electronic and Optical Engineering, Ordnance Engineering College, Shijiazhuang 050003, China)zDpag8879环亚手机|首页主页

Abstract: Aiming at the practical requirements of electronic reconnaissance subsystem in an electronic countermeasure simulation system, according to electronic reconnaissance forms and the distribution of two parties, a modeling method of radar signal environment was proposed. It provided the mixed signals source for electronic reconnaissance subsystem. The signal modeling principle was proposed, which defined the position information of radar platform and target platform in trajectory layer. The angle information was defined in antenna layer, which realized radar signal modeling in signal layer. The radar signal environment simulation system of electronic countermeasure was established based on SystemVue at last. It is approved that the method is correct and realizable by the simulation experiment.zDpag8879环亚手机|首页主页

Keywords: electronic countermeasure; radar signal; modeling; simulation; SystemVuezDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

一种电网巡检航拍图像中绝缘子定位方法zDpag8879环亚手机|首页主页

程海燕,韩璞,王迪,翟永杰zDpag8879环亚手机|首页主页

(华北电力大学河北省发电过程仿真与优化控制工程技术研究中心,保定 071003)zDpag8879环亚手机|首页主页

摘要:提出了一种电网巡检航拍图像中绝缘子定位方法。该方法利用遗传算法改进的最大类间方差法对航拍绝缘子图像进行阈值分割,然后基于形态学滤波重构;采用SketchUp软件构建绝缘子图像库,即正样本,对该正样本和负样本(背景)分别提取Hu不变矩来训练AdaBoost分类器;利用训练好的分类器对分割后的绝缘子进行分类和粗定位;通过顺序割图法(Order Cut methodOC)对粗定位得到的包含同一个绝缘子的所有矩形的并集的初始最小外接矩形进行裁割,最终获得精细定位的完整绝缘子。实验结果表明,该方法能从航拍图像中有效、精确地定位不同类型、不同长度的完整绝缘子。zDpag8879环亚手机|首页主页

关键词:航拍图像;绝缘子定位;阈值分割;不变矩;顺序割图法zDpag8879环亚手机|首页主页

中图分类号:TN911.73? ?????文献标识码:A?????? 文章编号:1004-731X (2017) 06-1327-10zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706023zDpag8879环亚手机|首页主页

Location Method of Insulators in Power Grid Patrol Aerial ImageszDpag8879环亚手机|首页主页

Cheng Haiyan, Han Pu, Wang Di, Zhai YongjiezDpag8879环亚手机|首页主页

(North China Electric Power University, Hebei Engineering Research Center of Simulation & Optimized Control for Power Generation, Baoding 071003, China)zDpag8879环亚手机|首页主页

Abstract: A method to locate the insulators in the power grid patrol aerial images was proposed. OTSU algorithm improved by genetic algorithm was applied to segment insulators from backgrounds. The segmented images were filtered and reconstructed based on morphology algorithm. SketchUp software was used to build insulator samples, namely positive samples. The moment invariants of these samples and negative samples(background) were calculated respectively to train a classifier based on AdaBoost algorithm. By using the trained classifier, segmented insulators were classified and located coarsely. The Order Cut method (OC) was used to cut the original minimum circumscribed rectangle consisting of all rectangles which located the same insulator, and the insulators could be located exactly and completely. The testing results show that this methodology can locate different types and length of insulators from aerial images effectively , accurately and completely.zDpag8879环亚手机|首页主页

Keywords: aerial images; insulators location; threshold segmentation; moment invariants; Order Cut methodzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

考虑乘性参考效应的价格控制模型仿真研究zDpag8879环亚手机|首页主页

杨慧,张辰zDpag8879环亚手机|首页主页

(南京理工大学经济管理学院,江苏 南京 210094)zDpag8879环亚手机|首页主页

摘要:基于顾客购买行为的参考依赖特征,对包含乘性参考效应的收益管理动态定价问题进行了系统建模和仿真研究。定义乘性参考效应的概念,刻画参考效应函数性质和对应的需求函数特征给出连续时间连续价格最优控制模型及其哈密尔顿雅克比方程针对该模型开发仿真算法,设计多类需求环境下的动态定价仿真试验。仿真结果表明参考效应对企业定价决策和收益状况具有显着影响;为企业在多种市场环境下制定价格策略提供了决策借鉴。zDpag8879环亚手机|首页主页

关键词:收益管理;动态定价;参考效应;最优控制;仿真zDpag8879环亚手机|首页主页

中图分类号:TP391.9? ????文献标识码:A????? 文章编号:1004-731X (2017) 06-1337-07zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706024zDpag8879环亚手机|首页主页

Simulation Study on Price Control Model with Multiplicative Reference EffectzDpag8879环亚手机|首页主页

Yang Hui, Zhang ChenzDpag8879环亚手机|首页主页

(School of Economics and Management, Nanjing University of Science and Technology, Nanjing 210094, China)zDpag8879环亚手机|首页主页

Abstract: Considering customers' reference-dependent behavior, modeling and simulation study of the revenue management pricing problem with multiplicative reference effect was focused on, which defined the concept of multiplicative reference effect, described the characteristics of the reference effect function and the demand function with multiplicative reference effect, constructed the optimal control model with continuous time and continuous prices, proposed the Hamilton-Jacobi equation, provided simulation algorithm and designed simulation experiments to compare the pricing strategies under different demand circumstances. The simulation study shows that the reference effect has substantial impact on pricing paths and total revenues. The results provide management insights for enterprises to make pricing decisions under different market environments.zDpag8879环亚手机|首页主页

Keywords: revenue management; dynamic pricing; reference effect; optimal control; simulationzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

煤与瓦斯突出巷道网中煤岩流运行仿真实现zDpag8879环亚手机|首页主页

李宗翔1,2,王雅迪1,2,张春华3,王天明1,2zDpag8879环亚手机|首页主页

(1. 辽宁工程技术大学安全科学与工程学院, 辽宁 阜新 1230002. 矿山热动力灾害与防治教育部重点实验室, 辽宁 阜新 1230003. 辽宁工程技术大学矿业技术学院,辽宁 葫芦岛 125105)zDpag8879环亚手机|首页主页

摘要:为提高煤与瓦斯突出灾变过程仿真的准确性,采用时间步长法,描述突出时固相煤岩流在巷道网中运行堆积。按煤岩流向下优先规则、以巷道下向倾角正弦值为自变量,构造出煤量分配权重模型,该模型适应下向、近水平和上向3种巷道情况;按塌落模型构造突出煤强度变化。结合九里山矿突出事故案例,仿真煤岩流突入16031运输巷中,止步于2号反向风门前,同时煤岩流解吸出大量瓦斯,形成突出瓦斯源的一部分,在逆流风压的作用下,高浓度瓦斯透过2号风门,被瓦斯传感器监测到。研究表明,考虑煤岩流的仿真计算,能合理地描述煤流巷道瓦斯迅速升高问题。zDpag8879环亚手机|首页主页

关键词:突出煤岩流;优先权模型;系统仿真;时间步长法;巷道网zDpag8879环亚手机|首页主页

中图分类号:TD725, TD712. 54?? 文献标识码:A?????? 文章编号:1004-731X (2017) 06-1344-07zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706025zDpag8879环亚手机|首页主页

Simulation of Coal Flow Movement Process in Coal and Gas Outburst of Roadway NetworkzDpag8879环亚手机|首页主页

Li Zongxiang1,2, Wang Yadi1,2, Zhang Chunhua3, Wang Tianming1,2zDpag8879环亚手机|首页主页

(1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China; 2. Key Laboratory of Mine Thermodynamic disasters and Control of Ministry of Education, Fuxin 123000, China; 3. Mining Industry Technology College, Liaoning Technical University, Huludao 125105, China)zDpag8879环亚手机|首页主页

Abstract: In order to improve the simulation accuracy of the process in coal and gas outburst disaster period, time step method was put forward to describing the movement and accumulation of coal flow in roadway network when coal and gas outburst happened. Downward dip angles of tunnel were taken as the independent variables, model for distribution weight of coal output was built based on “Downward Priority” principle, and the model could adapt to downward roadway, nearly horizontal roadway and upward roadway. Strength change of outburst coal was established based on the collapse model. Combining with the coal and gas outburst accident and outburst monitoring facts in Jiulishan Coal Mine, process of coal flow movement was simulated, and the process was that coal flow swarmed into haulageway 16301, passing through reverse No. 2 ventilation door and much gas was desorbed and becoming part of the outburst gas source at the same time. Gas of high concentration was monitored by methane sensor when passing through No. 2 ventilation door under the influence of counter current wind pressure. The results show that the rapid rise of gas in roadway could be reasonably described, considering the simulation calculation of coal flow.zDpag8879环亚手机|首页主页

Keywords: coal flow outburst; priority model; system simulation; time step method; roadway networkzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

面向起重机企业的云制造服务平台的研究与应用zDpag8879环亚手机|首页主页

杨琛1,2,王中杰1,刘朝辉1,于娜娜1zDpag8879环亚手机|首页主页

(1. 同济大学电子与信息工程学院,上海 2018042. 上海海洋大学工程学院,上海 201306)zDpag8879环亚手机|首页主页

摘要:为提高起重机制造企业的柔性制造能力、快速响应能力和协同制造能力,论文将云制造分散资源集中使用,集中资源分散服务的制造服务新模式引入起重机行业,提出构建面向起重机企业的云制造服务平台。建立了基于OWL-S的制造资源本体模型,通过形式化描述完成服务虚拟化封装;针对云制造平台提出多层次动态匹配模型,并针对不同匹配类型数据提出了综合匹配算法;面向起重机制造中小型企业进行了云制造平台的构建和匹配算法仿真测试zDpag8879环亚手机|首页主页

关键词:起重机;云制造平台;本体;服务匹配zDpag8879环亚手机|首页主页

中图分类号:TP391.1????? 文献标识码:A?????? 文章编号:1004-731X (2017) 06-1351-08zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706026zDpag8879环亚手机|首页主页

Research and Application of Cloud Manufacturing Service Platform for CranezDpag8879环亚手机|首页主页

Yang Chen1,2, Wang Zhongjie1, Liu Zhaohui1, Yu Nana1zDpag8879环亚手机|首页主页

(1. College of Electronics and Information Engineering, Tongji University, Shanghai 201804, China; 2. College of Engineering Science and Technology, Shanghai Ocean University, Shanghai 201306, China)zDpag8879环亚手机|首页主页

Abstract: Based on the research fruits of cloud manufacturing, the cloud manufacturing platform for crane was focused on. Based on the connotation analysis of the crane manufacturing, the key technologies of manufacturing resource access and cloud service modeling were discussed. A multi-level dynamic matching model and a comprehensive matching algorithm were proposed. The construction and testing of the cloud manufacturing platform was carried out, and the future works were given.zDpag8879环亚手机|首页主页

Keywords: crane; cloud manufacturing; service matching; ontologyzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

3D打印过程微流道尺度效应建模与数值模拟zDpag8879环亚手机|首页主页

陈从平,王小云,黄杰光,李波zDpag8879环亚手机|首页主页

(三峡大学机械与动力学院,湖北 宜昌 443002)zDpag8879环亚手机|首页主页

摘要:3D打印微流道尺度效应主要表现为壁面滑移和粘性耗散,它们影响熔体的流动特性和热物理特性,进而影响打印质量。针对上述两种效应,分别建立了理论模型,并运用流体仿真软件Polyflow对丙烯腈-丁二烯-苯乙烯共聚物(Acrylonitrile butadiene styrene, ABS)熔体在不同长径比的微流道中的壁面滑移和粘性耗散效应及其相互影响进行了研究。结果表明,壁面滑移程度随滑移系数减小而增大,熔体流速分布随管径增大而整体减小;粘性耗散程度随着微喷管入口温度升高和管径增大而减小;考虑壁面滑移时熔体的粘性耗散程度降低;粘性耗散和壁面滑移随着入口温度升高而同时减弱。zDpag8879环亚手机|首页主页

关键词:3D打印;壁面滑移;粘性耗散;建模;数值模拟zDpag8879环亚手机|首页主页

中图分类号:O351.2? ???????文献标识码:A?????? 文章编号:1004-731X (2017) 06-1359-08zDpag8879环亚手机|首页主页

DOI: 10.16182/j.issn1004731x.joss.201706027zDpag8879环亚手机|首页主页

Modeling and Numerical Simulation of Micro-tube Scale Effects in 3DP ProcesszDpag8879环亚手机|首页主页

Chen Congping, Wang Xiaoyun, Huang Jieguang, Li BozDpag8879环亚手机|首页主页

(College of Mechanical & Power Engineering, China Three Gorges University, Yichang 443002, China)zDpag8879环亚手机|首页主页

Abstract: Wall slip and viscous dissipation are two main scale effects in 3DP (Three dimensional printing) process, which has influences on the material’s flow properties and thermophysical properties and the printing quality. According to the two phenomena above, theoretic models of wall slip and viscous dissipation were established, respectively, and the software Polyflow was used to study the two scale effects and their interactions with molten ABS in micro-tubes of different radius. Simulation results show that wall slip level increases with the slip coefficient decreasing, and material’s velocity decreases with the increase of tube radius; Viscous dissipation level decreases with inlet temperature rising and tube radius decreasing. Furthermore, material’s temperature in wall considering wall slip is lower than that without wall slip, and both wall slip and viscous dissipation level decrease when the inlet temperature rises.zDpag8879环亚手机|首页主页

Keywords: 3DP; wall slip; viscous dissipation; modeling; numerical simulationzDpag8879环亚手机|首页主页

※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※zDpag8879环亚手机|首页主页

基于DELMIA的汽车前盖装配作业的仿真与改进zDpag8879环亚手机|首页主页

张丽珍1,邵祺1,杨加庆1,杨朦朦1,宋政

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