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Analytical solution of a hyperbolic partial differential equation and its application

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International Journal of Intelligent Computing and Cybernetics 2017年第2期10卷 183-199页

作者： Ping He yangmin li Department of Electromechanical Engineering University of MacaoTaipaMacao Department of Industrial and Systems Engineering The Hong Kong Polytechnic UniversityHung HomHong Kong

Purpose-The purpose of this paper is to investigate the analytical solution of a hyperbolic partial differential equation(PDE)and its ***/methodology/approach-The change of variables and the method of successive approximations are *** Volterra transformation and boundary control scheme are adopted in the analysis of the reaction-diffusion ***-A detailed and complete calculation process of the analytical solution of hyperbolic PDE(1)-(3)is *** on the Volterra transformation,a reaction-diffusion system is controlled by boundary ***/value-The introduced approach is interesting for the solution of hyperbolic PDE and boundary control of the reaction-diffusion system.

关键词： Analytical solution Gain Kernel PDE Hyperbolic equation Neumann boundary condition Volterra integral transformation

Distributed learning particle swarm optimizer for global optimization of multimodal problems

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Frontiers of Computer Science 2018年第1期12卷 122-134页

作者： Geng ZHANG yangmin li Yuhui SHI Department of Electromechanical Engineering Faculty of Science and Technology University of Macao Macao China Industrial and Systems Engineering Faculty of Engineering The Hong Kong Polytechnic University Hong Kong China Department of Computer Science and Engineering Southern University of Science and Technology Shenzhen 518055 China

Particle swarm optimizer （PSO） is an effective tool for solving many optimization problems. However, it may easily get trapped into local optimum when solving com- plex multimodal nonseparable problems. This paper presents a novel algorithm called distributed learning particle swarm optimizer （DLPSO） to solve multimodal nonseparable prob- lems. The strategy for DLPSO is to extract good vector infor- mation from local vectors which are distributed around the search space and then to form a new vector which can jump out of local optima and will be optimized further. Experimen- tal studies on a set of test functions show that DLPSO ex- hibits better performance in solving optimization problems with few interactions between variables than several other peer algorithms.

关键词： particle swarm optimizer (PSO) orthogonal ex-perimental design (OED) swarm intelligence

Control and synchronization of a hyperchaotic finance system via single controller scheme

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International Journal of Intelligent Computing and Cybernetics 2015年第4期8卷 330-344页

作者： Ping He yangmin li Department of Electromechanical Engineering Faculty of Science and TechnologyUniversity of MacaoTaipaMacao

Purpose–The purpose of this paper is to study the control and synchronization of the hyperchaotic finance ***/methodology/approach–A single controller scheme is *** Routh-Hurwitz criteria and the structure of solution of first-order linear differential equations are adopted in analysis of control and ***–Two single controllers are designed and added to the new hyperchaotic finance *** stability of the hyperchaotic finance system at its zero equilibrium point is guaranteed by applying the appropriate single controller signal based on Routh-Hurwitz *** effective controller is also designed for the global asymptotic synchronization on the hyperchaotic finance system based on the structure of solution of first-order linear differential *** simulations are demonstrated to verify the effectiveness of the proposed single controller ***/value–The introduced approach is interesting for control and synchronization the hyperchaotic finance system.

关键词： Routh-Hurwitz criteria Hyperchaotic finance system Single controller scheme

Novel Surface Design of Deployable Reflector Antenna Based on Polar Scissor Structures

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Chinese Journal of Mechanical Engineering 2020年第5期33卷 4-18页

作者： Pengyuan Zhao Jinguo liu Chenchen Wu yangmin li Keli Chen State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of ScienceShenyang 110016China Institutes for Robotics and Intelligent Manufacturing Chinese Academy of SciencesShenyang 110169China University of Chinese Academy of Sciences Beijing 100049China Department of Industrial and Systems Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China

Space-deployable mechanisms can be used as supporting structures for large-diameter antennas in space *** study proposes a novel method for constructing the surface design of space reflector antennas based on polar scissor *** concurrency and deployability equations of the space scissor unit with definite surface constraints are derived using the rod and vector *** equations of the spatial transformation for space n-edge polar scissor units are summarized.A new closed-loop deployable structure,called the polar scissor deployable antenna(PSDA),is designed by combining planar polar scissor units with spatial polar scissor *** overconstrained problem is solved by releasing the curve constraint that locates at the end-point of the planar scissor *** simulation and error analysis are *** results show that the PSDA can effectively fit the paraboloid of ***,deployment experiments verify the validity and feasibility of the proposed design method,which provides a new idea for the construction of large space-reflector antennas.

关键词： Deployable structures Polar scissor unit Reflector antenna Surface design

Sensor Fault Diagnosis Method Based on Fractal Dimension

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Sensor Fault Diagnosis Method Based on Fractal Dimension

FLEXIBLE MULTIBODY SYSTEM DYNAMICS-FINITE SEGMENT METHOD

第25届中国控制与决策会议

作者： Qian Pengpeng liu Jinguo Zhang Wei li yangmin Shenyang Institute of Automation Chinese Academy of Sciences Department of Electromechanical Engineering University of Macau

ISBN: (纸本)9781467355339

The development of automation technology has opened a new field - sensor fault diagnosis. Sensor is the source and foundation of information, once the sensor faults occur, which will lead to the degradation of automation system’s performance, even disastrous consequences. There are various sensor fault diagnosis methods, while each method has its imperfection, so this paper has proposed to use fractal dimension for sensor fault diagnosis. Fractal theory is a powerful tool to deal with nature fragmented or complex phenomenon, which can describe the non-linear behaviour of the signal quantitatively. Firstly, this paper indicates the necessity and practical utility of sensor fault diagnosis and the development status of fractal theory. Then it describes the correlation dimension in detail which is the most suitable one to analyze sequenced dynamic signal, thereafter analyzing the type of the sensor fault. Finally, in order to verify the effectiveness of the method proposed, we set up an experimental platform. Five kinds of signals （no-fault signal and four kinds of fault signals） are gathered, whose correlation dimensions are calculated. The experimental results show that: various sensor faults can be diagnosed effectively by correlation dimension. At last, in order to verify the correctness of the correlation dimensions’ results, the paper also gives the box counting dimension results, which further verifies the correctness of the results.

关键词： Sensor Fault Diagnosis Fractal Dimension Fractal Theory Correlation Dimension Box Counting Dimension

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Chinese Journal of Mechanical Engineering 1994年第2期7卷 156-162页

作者： Zhang Dajun liu Youwu Yun Chao Wang Shuxin Jiang Tieying li yangmin(Tianjin University)

The principle and method of flexible multibody system dynamics is presented. The dynamic equation have been developed by means of Huston's method based on Kane's equation. In which the flexible members with general cross-section characters were divided into finite segment models under the assumption of small strain. In order to decrease the degrees of freedom of the system and increase the efficiency of numerical calculation. the mode transformation has been introduced. A typical example is presented. and the foregoing method has been perfectly verified.

关键词： Flexible multibody system Finite segment method Nonlinear deformation General cross-section

一种新型3自由度大行程微定位平台设计与分析

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机械工程学报 2013年第19期49卷 48-54页

作者：李杨民肖霄汤晖澳门大学科技学院中国澳门999078

为解决微定位平台大行程与高精度之间的矛盾,提出一种新型的3自由度柔性并联机构。该机构三条支链采用特殊方式与动平台相连,使整体机构结构紧凑且具有良好的力学传递性能。同时,机构采用行程大,分辨率高,便于控制的电磁驱动器作为驱动... 详细信息

为解决微定位平台大行程与高精度之间的矛盾,提出一种新型的3自由度柔性并联机构。该机构三条支链采用特殊方式与动平台相连,使整体机构结构紧凑且具有良好的力学传递性能。同时,机构采用行程大,分辨率高,便于控制的电磁驱动器作为驱动部件,保证机构在不需要引入放大机构的前提下便可获得较大的行程和较高的分辨率。使用大行程柔性铰链代替普通的球铰,降低了加工制造难度和机构刚度模型的求解难度。采用螺旋理论分析了3-P(4S)并联机构末端运动特征,结合单元刚度矩阵法和矩阵位移法推导了3-P(4S)柔性并联机构的静刚度模型,并采用ANSYS进行了分析验证。

关键词：柔性机构螺旋理论刚度模型

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并联微操作机器人技术及应用进展

机械工程学报 2008年第12期44卷 12-23页

作者：贠远徐青松李杨民澳门大学科技学院机电工程系

微/纳米并联微操作机器人技术是综合微/纳米技术和并联机器人技术迅速发展而形成的新研究方向,涉及精密机械、机器人、计算机、自动控制、精密测量等多学科领域,广泛应用于生物医学领域中的细胞与基因操作、精细外科手术、微电子装配、... 详细信息

微/纳米并联微操作机器人技术是综合微/纳米技术和并联机器人技术迅速发展而形成的新研究方向,涉及精密机械、机器人、计算机、自动控制、精密测量等多学科领域,广泛应用于生物医学领域中的细胞与基因操作、精细外科手术、微电子装配、微细加工、光纤对接等领域。通过对当前国内外并联微操作机器人的研究状况、产品化应用以及实际应用等方面的发展态势进行详细地回顾,总结微/纳米级并联微操作机器人这一研究方向在工作空间、运动解耦性、承载能力、理论分析、柔性铰链设计、实时标定与测量、新材料、驱动等方面存在的问题,并提出改进意见,以期对该领域未来的创新设计以及发展研究产生一定的推动作用。

关键词：微操作并联机器人柔性铰链

面向生物医学应用的微操作机器人技术发展态势

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机械工程学报 2011年第23期47卷 1-13页

作者：李杨民汤晖徐青松贠远澳门大学科技学院中国澳门999078

近年来,生物医学得到了迅猛发展,研究领域多涉及到微纳米操作。手动操作存在工作效率低,成功率低等缺陷。因此,由生物医学与微操作机器人结合而产生的生物微操作机器人已成为全世界范围内的研究热点。基于此,通过对当前国内外生物微操... 详细信息

近年来,生物医学得到了迅猛发展,研究领域多涉及到微纳米操作。手动操作存在工作效率低,成功率低等缺陷。因此,由生物医学与微操作机器人结合而产生的生物微操作机器人已成为全世界范围内的研究热点。基于此,通过对当前国内外生物微操作机器人的研究现状、实际应用等方面进行分析,总结出生物微操作机器人在视觉伺服控制、驱动器、执行机构、微操作控制策略、几何标定、传感器融合等方面存在的不足,并提出改进意见,以期对该领域未来的创新设计以及发展研究提供一定的参考及指导作用。

关键词：生物医学应用微操作机器人微纳米视觉伺服控制传感器融合