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author:

Cheng, Jing (Cheng, Jing.) [1] | Chen, Li (Chen, Li.) [2] (Scholars:陈力)

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EI Scopus PKU CSCD

Abstract:

The calm control for attitude and joints disturbed motions and the coordinate operation problems were discussed. At first, according to the theorem of impulse and the closed-loop constraints, the impact effects of dual-arm space robot capturing a spacecraft were analyzed and the dynamics equations of composite closed chain system were obtained simultaneously. Then, in order to satisfy the compute capacities of spaceborne computer, a partitioned sliding mode adaptive control scheme was designed based on neural network. The dynamics of combined system was considered as a set of nonlinear interconnected subsystems. Concurrent neural networks were applied to approximate the unknown dynamics of the subsystems, the computational efficiency was improved by concurrent processes. The partitioned sliding mode adaptive controller was designed to eliminate both interconnection terms and approximation errors. The weighted minimum-norm theory was introduced to distribute torques guarantee that the cooperative operation between manipulators. At last, numerical examples demonstrated the effectiveness of the proposed control scheme. © 2017, China Mechanical Engineering Magazine Office. All right reserved.

Keyword:

Adaptive control systems Computational efficiency Computation theory Dynamics Neural networks Robots

Community:

  • [ 1 ] [Cheng, Jing]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350116, China
  • [ 2 ] [Chen, Li]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350116, China

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Source :

China Mechanical Engineering

ISSN: 1004-132X

CN: 42-1294/TH

Year: 2017

Issue: 12

Volume: 28

Page: 1427-1433 and 1441

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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