Virtual semi-active damping learning control for robot manipulators interacting with unknown environment

doi:10.1177/1077546320966430

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	Virtual semi-active damping learning control for robot manipulators interacting with unknown environment
	W. Wang; A. Li; Q. Li; J. Gu; Q. Huo; M. Zhu; Y. Li and H. Chu
	2020
Source Publication	Journal of Vibration and Control
ISSN	10775463
Abstract	Position controllers are used for free motion, whereas force controllers are used for constrained motion of robotic manipulators. The hybrid controller switches between position and force control modes depending on whether the manipulator is in contact with the environment. To improve production efficiency, the velocity of contact between the manipulator and environment is not set to zero. However, the high impact force due to the nonzero contact velocity might damage the environment surface or manipulators. In this article, we propose a virtual semi-active damping learning method to suppress force overshoot without decreasing the contact velocity. Virtual semi-active damping is adjusted according to the manipulator position in force control. The limited-memory BFGS method is used to obtain the ideal impedance model for the unknown environment. By minimizing the defined cost function, we get the desired interaction performance. The correctness and effectiveness of the proposed method are verified by conducting simulations and experiments. The Author(s) 2020.
DOI	10.1177/1077546320966430
URL	查看原文
Indexed By	EI
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Document Type	期刊论文
Identifier	http://ir.ciomp.ac.cn/handle/181722/64998
Collection	中国科学院长春光学精密机械与物理研究所
Recommended Citation GB/T 7714	W. Wang,A. Li,Q. Li,et al. Virtual semi-active damping learning control for robot manipulators interacting with unknown environment[J]. Journal of Vibration and Control,2020.
APA	W. Wang.,A. Li.,Q. Li.,J. Gu.,Q. Huo.,...&Y. Li and H. Chu.(2020).Virtual semi-active damping learning control for robot manipulators interacting with unknown environment.Journal of Vibration and Control.
MLA	W. Wang,et al."Virtual semi-active damping learning control for robot manipulators interacting with unknown environment".Journal of Vibration and Control (2020).

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中国科学院长春光学精密机械与物理研究所