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IEEE International Conference on robotics and Biomimetics

作者： Jing Tao Peng Wang Hong Qiao Zhipeng Tang Research Center of Precision Sensing and Control Institute of Automation Beijing China State Key Laboratory of Management and Control for Complex Systems Chinese Academy of Sciences Beijing China

ISBN: (纸本)9781479927456

Facility layout problem (FLP) which deals with the placement of facilities in the plant area is one of the most critical problems in manufacturing systems design. This paper presents a novel facility layout approach based on differential evolution (DE) algorithm. Firstly, mathematical model with constraints for the FLP is established. Then, a new facility layout algorithm based on DE is proposed, which can improve the convergence rate by using the interference checking method. Finally, a simulation platform with three-dimensional visualization is developed. The comparison experiments of the proposed method and genetic algorithm (GA) based on robot work cell layout problem show that the proposed method converges faster and can obtain better optimal layout.

关键词： Layout Optimization Mathematical model Algorithm design and analysis Interference Manipulators

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Sliding mode control with nonlinear disturbance observer for a class of underactuated system

Sliding mode control with nonlinear disturbance observer for...

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Chinese control Conference (CCC)

作者： Jian Huang Feng Ding Yongji Wang State Key Laboratory of Robotics and System Harbin Institute of Technology 150001 China Department of Control Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China

In this study, a sliding mode controller based on nonlinear disturbance observer is investigated to control a class of underactuated system which is in cascaded form. By using strict feedback, the underactuated system is presented as a special cascade normal form convenient for controller design. A sliding mode controller is designed to stabilize underacturated plant directly and drive the variables to the sliding surface. In order to improve performance and robustness, a nonlinear disturbance observer was designed to compensate for external disturbances and model uncertainties. The theoretical results are illustrated by simulations on the acrobot. The simulation results show that the sliding mode controller with nonlinear disturbance observer can suppress the disturbance effectively.

关键词： Observers Sliding mode control Robustness Uncertainty Simulation Joints Friction

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Distributed Robust Consensus of Heterogeneous Uncertain Multi-agent systems

Distributed Robust Consensus of Heterogeneous Uncertain Mult...

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第三十二届中国控制会议

作者： Zhongkui Li Zhisheng Duan Frank L. Lewis State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Aerospace Engineering College of Engineering Peking University The Automation and Robotics Research Institute The University of Texas at Arlington

ISBN: (纸本)9781479900305

This paper considers the distributed robust consensus problem of multi-agent systems with nominal linear dynamics but subject to different matching uncertainties. Due to the existence of nonidentical uncertainties, the multi-agent systems discussed in this paper are essentially heterogeneous. A distributed continuous static consensus protocol based on the relative state information is first designed, under which the consensus error is uniformly ultimately bounded and exponentially converges to a small adjustable residual set. A fully distributed adaptive consensus protocol is then designed, which, contrary to the static protocol, relies on neither the eigenvalues of the Laplacian matrix nor the upper bounds of the uncertainties. A sufficient condition for the existence of the proposed protocols is that each agent is stabilizable.

关键词： Multi-agent system, consensus, adaptive control, robust control, uncertain systems.

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Non-smooth Lyapunov Function for Nonlinear Consensus Problem

Non-smooth Lyapunov Function for Nonlinear Consensus Problem

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American control Conference

作者： Yao Chen Hairong Dong Jinhu Lü Xubin Sun School of Electronic and Information Engineering Beijing Jiaotong University Beijing 100044 China State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Beijing 100044 China Key Lab of Systems and Control Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100190 China

ISBN: (纸本)9781479901777

Consensus of multi-agent systems (MAS) is an intriguing topic recent years due to its widely application in robotics, biology, computer and social science. Traditionally, construction of smooth Lyapunov function can be viewed as an effective method for the stability analysis of MAS with fixed topology. On one hand, the evolution of MAS is inevitably involved in dynamical environments and the recent development of MAS requires systematic tools for the analysis of MAS with dynamic topology. On the other hand, the interactions between agents are more likely to be nonlinear in the real world and the investigation of MAS has not too much concern on nonlinear models yet. Facing these problems, this paper takes a nonsmooth Lyapunov candidate to investigate the consensus of a representative nonlinear MAS with dynamical topology. Several consensus criteria are proposed and simulation results validate the effectiveness of these criteria.

关键词： Liapunov function Stability analysis nonlinearity topology

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Virtual Simulation System with Path-following control for Lunar Rovers Moving on Rough Terrain

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Chinese Journal of Mechanical Engineering 2012年第1期25卷 38-46页

作者： GAO Haibo DENG Zongquan DING Liang WANG Mengyu State Key Laboratory of Robotics and Systems Harbin Institute of TechnologyHarbin 150001China School of Mechatronics Harbin Institute of TechnologyHarbin 150001China

Virtual simulation technology is of great importance for the teleoperation of lunar rovers during the exploration phase, as well as the design of locomotion systems, performance evaluation, and control strategy verification during the R&D phase. The currently used simulation methods for lunar rovers have several disadvantages such as poor fidelity for wheel-soil interaction mechanics, difficulty in simulating rough terrains, and high complexity making it difficult to realize mobility control in simulation systems. This paper presents an approach for the construction of a virtual simulation system that integrates the features of 3D modeling, wheel-soil interaction mechanics, dynamics analysis, mobility control, and visualization for lunar rovers. Wheel-soil interaction experiments are carried out to test the forces and moments acted on a lunar rover’s wheel by the soil with a vertical load of 80 N and slip ratios of 0, 0.03, 0.05, 0.1, 0.2, 0.3, 0.4, and 0.6. The experimental results are referenced in order to set the parameters’ values for the PAC2002 tire model of the ADAMS/Tire module. In addition, the rough lunar terrain is simulated with 3DS Max software after analyzing its characteristics, and a data-transfer program is developed with Matlab to simulate the 3D reappearance of a lunar environment in ADAMS. The 3D model of a lunar rover is developed by using Pro/E software and is then imported into ADAMS. Finally, a virtual simulation system for lunar rovers is developed. A path-following control strategy based on slip compensation for a six-wheeled lunar rover prototype is researched. The controller is implemented by using Matlab/Simulink to carry out joint simulations with ADAMS. The designed virtual lunar rover could follow the planned path on a rough terrain. This paper can also provide a reference scheme for virtual simulation and performance analysis of rovers moving on rough lunar terrains.

关键词： lunar rover comprehensive simulation system rough terrain wheel-soil interaction mechanics path-following control

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An energy harvester combining a piezoelectric cantilever and a single degree of freedom elastic system

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第7期13卷 526-537页

作者： Hong-yan WANG Xiao-biao SHAN Tan XIE State Key Laboratory of Robotics and System Harbin Institute of Technology Harbin 150001China College of Computer and Control Engineering Qiqihar UniversityQiqihar 161006China

This paper presents a type of vibration energy harvester combining a piezoelectric cantilever and a single degree of freedom (SDOF) elastic system. The main function of the additional SDOF elastic system is to magnify vibration displacement of the piezoelectric cantilever to improve the power output. A mathematical model of the energy harvester is developed based on Hamilton's principle and Rayleigh-Ritz method. Furthermore, the effects of the structural parameters of the SDOF elastic system on the electromechanical outputs of the energy harvester are analyzed numerically. The accuracy of the output performance in the numerical solution is identified from the finite element method (FEM). A good agreement is found between the numerical results and FEM results. The results show that the power output can be increased and the frequency bandwidth can be improved when the SDOF elastic system has a larger lumped mass and a smaller damping ratio. The numerical results also indicate that a matching load resistance under the short circuit resonance condition can obtain a higher current output, and so is more suitable for application to the piezoelectric energy harvester.

关键词： Piezoelectric cantilever Single degree of freedom elastic （SDOF） system Energy harvesting Finite element analysis（FEA）

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Value capture and value creation in high-velocity networked environments

Value capture and value creation in high-velocity networked ...

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IEEE International Conference on Service Operations and Logistics, and Informatics, SOLI

作者： Hannu Tuomisaari Juhana Peltonen Timo R Nyberg Xisong Dong Göte Nyman Business Innovation and Technology School of Science Aalto University Espoo Finland The State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing China Institute of Behavioral Sciences University of Helsinki Finland

ISBN: (纸本)9781479905287

The core function of any profitable firm is capturing a share of the value that customer perceives in the firm's offering. Value capture is traditionally considered to relate to a competitive advantage at the firm level, but not the firm network level. However, the ever increasing role of information and knowledge in today's economy is profoundly changing how firms can create competitive advantages. Among these changes, we highlight reducing transaction costs in various areas of the economy, which drives the economy to organize more toward rapidly evolving networks or smaller firms. There is also an opposite trend for some internet firms to become larger due to economies of scale and due to network externalities. In this position paper, we examine the issue of value capture by firms that are increasingly small and operate in rapidly changing and evolving networks. We conclude by outlining future research on firm-level capabilities that are required to enable value capture in new forms of dynamic networks.

关键词： Economics Organizations Intellectual property Industries Communications technology Educational institutions

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An anthropomorphic controlled hand prosthesis system

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Journal of Zhejiang University-Science C(Computers and Electronics) 2012年第10期13卷 769-780页

作者： Hai HUANG Hong LIU Nan LI Li JIANG Da-peng YANG Lei WAN Yong-jie PANG Gerd HIRZINGER National Key Laboratory of Science and Technology on Autonomous Underwater Vehicle Harbin Engineering University Harbin 150001 China State Key Laboratory of Robot and Systems Harbin Institute of Technology Harbin 150001 Chin Institute of Robotics and Mechatronics German Aerospace Center DLR Wessling 82230 Germany

Based on HIT/DLR(Harbin Institute of Technology/Deutsches Zentrum für Luft-und Raumfahrt) Prosthetic Hand II,an anthropomorphic controller is developed to help the amputees use and perceive the prosthetic hands more like people with normal physiological *** core of the anthropomorphic controller is a hierarchical control *** is composed of a top controller and a low level *** top controller has been designed both to interpret the amputee's intensions through electromyography(EMG) signals recognition and to provide the subject-prosthesis interface control with electro-cutaneous sensory feedback(ESF),while the low level controller is responsible for grasp *** control strategies include the EMG control strategy,EMG and ESF closed loop control strategy,and voice control *** EMG signal recognition,10 types of hand postures are recognized based on support vector machine(SVM).An anthropomorphic closed loop system is constructed to include the customer,sensory feedback system,EMG control system,and the prosthetic hand,so as to help the amputee perform a more successful EMG *** results suggest that the anthropomorphic controller can be used for multi-posture recognition,and that grasp with ESF is a cognitive dual process with visual and sensory *** process while outperforming the visual feedback process provides the concept of grasp force magnitude during manipulation of objects.

关键词： Anthropomorphic controller Prosthetic hand EMG recognition Electro-cutaneous sensory feedback

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A homogenous CPG-network for multimode locomotion control of modular self-reconfigurable robot

A homogenous CPG-network for multimode locomotion control of...

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2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012

作者： Cui, Xindan Zhu, Yanhe Wang, Xiaolu Tang, Shufeng Zhao, Jie State Key Laboratory of Robotics and Systems Harbin Institute of Technology Harbin Heilongjiang Province China

ISBN: (纸本)9781467312776

A self-reconfigurable (SR) robot is a cellular robot that is capable of adapting its shape and functions to changing environments and demands, and the "cellular" in which can rearrange their mutual mechanical connection to change the robot's outward features. This paper first introduces a new self-reconfigurable robotic system UBot. For the variability characteristics of the self-reconfigurable system, combined with the biological central pattern generator (CPG), a locomotion control method has been proposed which can control multimode locomotion for different configurations through the self-excited oscillation via different coupled modes of CPG network. The oscillators in the CPG network are homogenous with the same models and parameters, only the connection relations change for different configurations. The simulation and experiment of quadruped walking and snake-type wiggling controlled by CPG network have been successfully completed on the platform of UBot modular self-reconfigurable system. © 2012 IEEE.

关键词： Modular robots

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Virtual Force Feedback-based 3D Master/Slave Tele-nanomanipulation in SEM

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Journal of Nano Research 2012年 20卷 109-116页

作者： Li, Dongjie Rong, Weibin Sun, Lining Xiao, Wanzhe Zou, Yu State Key Laboratory of Robotics and System Harbin Institute of Technology Harbin 150001 China Institute of Electromechanical Control and Automation Technology Harbin University of Science and Technology Harbin 150080 China

In this paper, we focus on the need for real time nanomanipulation, a 3D Master/Slave tele-nanomanipulation platform is studied with the haptic device (Omega3) as the master and the nanopositioner (Attocube) as the slave, working in scanning electron microscope (SEM). The 3D manipulation environment is developed with the help of VR technology. The platform is controlled by the enhanced virtual coupling (EVC) algorithm. The stability of the platform is discussed with Llewellyn's stability criteria. Scale factors and enhancement factor of the control system are determined, according to the force applied on master and slave terminals. Performances of the platform are tested with the ZnO nanowire manipulation experiments. Experiment results show that the platform has good performance while guaranteeing stability on ZnO nanowires manipulation in SEM using the method presented in this paper. © (2012) Trans Tech Publications, Switzerland.

关键词： Stability criteria

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