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  首页《机械工程学报(英文版)》2008年3期目录NOVEL 6-DOF WEARABLE EXOSKELETON ARM WITH PNEUMATIC FORCE-FEEDBACK FOR BILATERAL TELEOPERATION

ZHANG Jiafan
State Key Laboratory of Fluid Power Transmission and Control,
Zhejiang University,
Hangzhou 310027, China

FU Hailun
Zhejiang Province Institute
of Metrology,
Hangzhou 310027, China

DONG Yiming

ZHANG Yu

YANG Canjun

CHEN Ying
State Key Laboratory of Fluid Power
Transmission and Control,
Zhejiang University,
Hangzhou 310027, China

 

 

NOVEL 6-DOF WEARABLE EXOSKELETON ARM WITH PNEUMATIC FORCE-FEEDBACK FOR BILATERAL TELEOPERATION*

 

Abstract: A particular emphasis is put on a novel wearable exoskeleton arm, ZJUESA, with 6 degrees of freedom, which is used for the robot teleoperation with the force-feedback in the unknown environment. In this external structure mechanism, the 3-revolution-prismatic-spherical (3RPS) parallel mechanism is devised from the concept of the human upper-limb anatomy and applied for the shoulder 3-DOF joint. Meanwhile, the orthogonal experiment design method is introduced for its optimal design. Aiming at enhancing the performance of teleoperation, the force feedback is employed by the pneumatic system on ZJUESA to produce the vivid feeling in addition to the soft control interface. Due to the compressibility and nonlinearity of the pneumatic force feedback system, a novel hybrid fuzzy controller for the precise force control is proposed and realized based on the Mega8 microcontroller units as the units of the distributed control system on ZJUESA. With the results of several experiments for master-slave control with force feedback, the feasibility of ZJUESA system and the effect of its hybrid fuzzy controller are verified.

Key words: Exoskeleton arm Teleoperation Pneumatic force-feedback Hybrid fuzzy control

 


* This project is supported by National Natural Science Foundation of China (No. 50305035). Received September 19, 2007; received in revised form January 21, 2008; accepted February 3, 2008

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Biographical notes

ZHANG Jiafan, born in 1980, is currently a PhD candidate in State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, China. He received his bachelor degree from Shanghai Jiaotong University, China, in 2003. His research interests include man-machine system and intelligent robotics.
Tel: +86-571-87953096; E-mail: caffeezhang@hotmail.com

FU Hailun, born in 1977, is currently an engineer in Zhejiang Province Institute of Metrology, China. He received his master degree on mechatronidcs in Zhejiang University, China, in 2006.
DONG Yiming, born in 1983, is currently a master candidate in State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, China.
E-mail: tim830528@163.com

ZHANG Yu, born in 1985, is currently a master candidate in State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, China.
E-mail: zhangyu_mm@hotmail.com

YANG Canjun, born in 1969, is currently an professor in Zhejiang University, China. He received his PhD degree from Zhejiang Universtiy, China, in 1997. His research interests include mechachonics engineering, man-machine system, robotics and ocean engineering.
Tel: +86-571-87953759; E-mail: ycj@sfp.zju.edu.cn

CHEN Ying, born in 1962, is currently a professor and PhD candidate supervisor in State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, China. His main research interests include mechachonics engineering, fluid power transmission and control, ocean engineering.
E-mail: ychen@zju.edu.cn


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