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International Conference on Electrical and control Engineering, ICECE 2010

作者： Wang, Zhijun Yao, Jiantao Wang, Hang Hou, Yulei Zhao, Yongsheng Parallel Robot and Mechatronic System Laboratory Yanshan University Qinhuangdao Hebei 066004 China School of Mechanical Electronic and Control Engineering Beijing Jiaotong University Beijing 100044 China

ISBN: (纸本)9780769540313

The dynamic performance of a fully pre-stressed six-component force sensor is simulated based on the software of ADAMS. The dynamics theoretical model of the sensor is built first, and the natural frequency and mode vector are deduced. Two simulation methods based on rigid-flexible model and spring-limb model are proposed. The natural frequency and mode shapes of the sensor are obtained by dynamic performance simulation and analysis. Additionally, forced vibration analysis of the sensor is simulated using ADAMS/Vibrition, then the resonance frequency and force vibration mode shapes are obtained. The result of simulation is agree well with the theoretical calculation, which proves the correctness of the simulation analysis. © 2010 IEEE.

关键词： Natural frequencies

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A New Method for Piston Ring Contour Cutting Based on Linear Driving

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13th International Conference on Advanced Design and Manufacture

作者： Zhang, Yicheng Chen, Zhihua Yang, Liangcai Chen, Jihong Tang, Xiaoqi College of Mechatronic Engineering and Automation National University of Defence Technology China State Engineering Research Centre of Numerical Control System Huazhong University of Science and Technology China Reserch Institute of Numerical Control Kunming University China

ISBN: (纸本)9781848002401

It is not easy to processing piston ring contour because of its complicating shape. From view of time-domain analysis, in order to trace the curve of piston ring, servo actuator must have high speed and acceleration to complete movement of back and forth. From view of frequency -domain analysis, the order of harmonic of the piston ring contour is very high, so the control system bandwidth also should be wide enough. It's hard to satisfy these requirements for the traditional drive methods by using rotate serve and Lead screw. In this paper, a new method of direct drive by linear motor is provided, And achieve good results.

关键词： linear motor piston ring numerical control

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The Tinyphoon's control concept

The Tinyphoon's control concept

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2006 IEEE International Conference on mechatronics, ICM

作者： Novak, Gregor Roesenert, Charlotte Bader, Markus Deutsch, Tobias Jakubek, Stefan Krywult, Stefan Seyr, Martin Institute of Computer Technology Vienna University of Technology Vienna Austria Department of System Design Faculty of Science and Technology Keio University Yokohama Japan Division of Control and Process Automation Institute for Mechanic and Mechatronic Vienna University of Technology Vienna Austria

ISBN: (纸本)0780397134

control concepts for mobile service robots are a key issue in robotic research. With the use of mobile robots in the domestic area, further challenges entails new designs facilitating efficient control concepts for fast motion with reduced computational capacity. This paper presents motion control designed for an autonomously acting two-wheel driven robot, which fits in a cuboid with 75x75x150mm. Due to the outstanding design of mechanical and electrical components, the robot is capable to perform high precision movements up to a speed of 2.5m/s, featuring a vision unit that allows a fast environment recognition interpreting current position based on an application dependent world model. Based on predictive control algorithms, trajectory tracking and point stabilization are facilitated. The use of real-time communication for all units allows fast interaction of all components exchanging information, which is indispensable for fast motion control. © 2006 IEEE.

关键词： control theory

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The Tinyphoon's control Concept

The Tinyphoon's Control Concept

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International Conference on mechatronics (ICM)

作者： Gregor Novak Charlotte Roesener Markus Bader Tobias Deutsch Stefan Jakubek Stefan Krywult Martin Seyr Institute of Computer Technology University of Technology Vienna Vienna Austria Department of System Design Faculty of Science and Technology Keio University Yokohama Japan Division of Control and Process Automation Institute for Mechanic and Mechatronic University of Technology Vienna Vienna Austria

control concepts for mobile service robots are a key issue in robotic research. With the use of mobile robots in the domestic area, further challenges entail new designs facilitating efficient control concepts for fast motion with reduced computational capacity. This paper presents motion control designed for an autonomously acting two-wheel driven robot, which fits in a cuboid with 75times75times150mm. Due to the outstanding design of mechanical and electrical components, the robot is capable to perform high precision movements up to a speed of 2.5m/s, featuring a vision unit that allows a fast environment recognition interpreting current position based on an application dependent world model. Based on predictive control algorithms, trajectory tracking and point stabilization are facilitated. The use of realtime communication for all units allows fast interaction of all components exchanging information, which is indispensable for fast motion control

关键词： Service robots Motion control Robotics and automation Automatic control Mobile robots control systems Electrical equipment industry Robot sensing systems Mobile computing Robotic assembly

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New method of improving the security of the hyperchaotic cryptosystem

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Journal of systems Engineering and Electronics 2005年第3期16卷 515-520页

作者：谢鲲雷敏冯正进 Inst .of Mechatronic Control System Shanghai Jiaotong Univ

In chaotic cryptosysterns, using （very） high dimensional chaotic attractors for encrypting a given message maybe can improve the privacy of chaotic encoding. A kind of hyperchaotic systems are studied by using some classical methods. The results show that for improving the security of the chaotic cryptosystems, besides the high dimension, the sub-Nyquist sampling interval （SI） is also necessary. Then, we verify this result using the methods of time series analysis.

关键词： hyperchaotic cryptosystem time series analysis Volterra-Wiener-Korengerg test surrogate data.

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New Method of Improving the Security of the Hyperchaotic Cryptosystem

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Journal of systems Engineering and Electronics 2005年第3期000卷 515-520页

作者： Xie Kun Lei Min Feng Zhengjin Inst.of Mechatronic Control System，Shanghai Jiaotong Univ.，Shanghai 200030，P.R.China

In chaotic cryptosystems, using (very) high dimensional chaotic attractors for encrypting a given message maybe can improve the privacy of chaotic encoding. A kind of hyperchaotic systems are studied by using some classical methods. The results show that for improving the security of the chaotic cryptosystems, besides the high dimension, the sub-Nyquist sampling interval (SI) is also necessary. Then, we verify this result using the methods of time series analysis.

关键词： hyperchaotic cryptosystem time series analysis Volterra-Wiener-Korengerg test surrogate data

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Geometric energy based analysis and controller design of hydraulic actuators applied in rolling mills

Geometric energy based analysis and controller design of hyd...

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2003 European control Conference, ECC 2003

作者： Grabmair, G. Schlacher, K. Kugi, A. Christian Doppler Laboratory for Automatic Control of Mechatronic Systems in Steel Industries J.K. University Altenbergerstr. 69 Linz4040 Austria Department of Automatic Control J.K.University Austria System Theory and Automatic Control Saarland University SaarbrückenD-66123 Germany

ISBN: (纸本)9783952417379

The two main goals of this contribution are to demonstrate the integration of hydraulic actuator systems with PCH systems and to discuss a modification of the well known input-output linearization in connection with PCH systems. We will show that this approach is closely related to the existence of so called Casimir functions in the PCH context. Finally, industrial measurements demonstrating the implemented control law will be presented. © 2003 EUCA.

关键词： Hydraulic actuators

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Geometric energy based analysis and controller design of hydraulic actuators applied in rolling mills

Geometric energy based analysis and controller design of hyd...

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European control Conference (ECC)

作者： G. Grabmair K. Schlacher A. Kugi Christian Doppler Laboratory for Automatic Control of Mechatronic Systems in Steel Industries J.K. University Linz Austria Department of Automatic Control J.K. University Austria Chair of System Theory and Automatic Control Saarland University Saarbrücken Germany

关键词： Mathematical model Thermodynamics Hydraulic actuators Strips Pistons Force Load modeling

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A Normal Form for systems of Implicit Ordinary Differential Equations

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PAMM 2003年第1期2卷

作者： Kurt Zehetleitner Dipl.-Ing. Kurt Schlacher Prof. Dr. Andreas Kugi Prof. Dr. Department of Automatic Control and Control Systems Technology Johannes Kepler University Linz Austria Christian Doppler Laboratory for Automatic Control of Mechatronic Systems in Steel Industries Linz Austria Chair of System Theory and Automatic Control University of Saarland Germany

This contribution deals with the application of computer algebra based methods to the analysis of dynamic systems described by implicit ordinary differential equations. This type of system defines a submanifold of a certain jet space. We solve the problem whether this submanifold admits a parametrization by an explicit system, i.e. any solution of the original system is a solution of the explicit one and vice versa. Since this approach requires the formal integrability of the implicit system, a sketch of an algorithm for the computation of the formally integrable system is presented.

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Security architecture and mechanism of third generation mobile communication

Security architecture and mechanism of third generation mobi...

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2002 IEEE Region 10 Conference on Computers, Communications, control and Power Engineering

作者： Lei, Min Bi, Hai Feng, Zhengjin Inst. of Mechatronic Control System Shanghai Jiao Tong University Shanghai 200233 China Shanghai Datang Mobile C.E.C.L. Bldg. 41 333 Qinjiang Road Shanghai 200233 China

The security architecture and mechanism of 3rd generation mobile communication are discussed in this paper. Five UMTS security feature is given. Then the security architecture is introduced. We analyzed the basic network access security mechanism and give the flow description regarding to the signalling procedure. For the integrity protection and data confidentiality, the corresponding algorithm is also discussed.

关键词： Mobile telecommunication systems

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