期刊
IEEE TRANSACTIONS ON CYBERNETICS
卷 46, 期 7, 页码 1538-1550出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCYB.2015.2451213
关键词
Constrained quadratic programming; kinematic redundancy; recurrent neural networks; Stewart platform
类别
资金
- NSFC [61401385]
- Hong Kong RGC ECS [25214015]
Redundancy resolution is a critical problem in the control of parallel Stewart platform. The redundancy endows us with extra design degree to improve system performance. In this paper, the kinematic control problem of Stewart platforms is formulated to a constrained quadratic programming. The Karush-Kuhn-Tucker conditions of the problem is obtained by considering the problem in its dual space, and then a dynamic neural network is designed to solve the optimization problem recurrently. Theoretical analysis reveals the global convergence of the employed dynamic neural network to the optimal solution in terms of the defined criteria. Simulation results verify the effectiveness in the tracking control of the Stewart platform for dynamic motions.
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