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�������պ����ѧѧ�� 2006, Vol. 32 Issue (09) :1059-1062    DOI:
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Modeling and characteristics analysis of redundant direct drive servo actuating system
Jin Hongtao, Jiao Zongxia, Li Chenggong, Zhou Rusheng*
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� To improve reliability of the digital direct drive servo actuating system, the system was configured redundantly with the electrical components of three redundancies and the mechanical components of two redundancies. Redundancy configuration and management scheme of the redundant servo actuating system were designed. Mechanism of the actuating system was researched thoroughly. Mathematical models of components of the actuating system such as duplex redundancy valve controlled cylinder and triple redundancy motor were built up. Then effects of the redundancy control on the reliability and characteristics of the system were analyzed. Matlab based simulations to the redundant actuating system were performed. Simulation results show that the redundant actuating system maintains good dynamic characteristics after secondary electrical failure and one mechanical failure. Redundant configuration improves reliability and characteristics of the system. It provides theoretical bases for the design of redundant digital direct drive servo actuating system.
Keywords�� redundancy   reliability   direct drive   servo control   servo system     
Received 2005-10-09;
Fund:

���ջ���������Ŀ(04E51013); ��������У�����ʦ����������Ŀ

About author: ������(1976-),��,����������,��ʿ��, htjin@asee.buaa.edu.cn.
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������, ������, ��ɹ�, ����ʤ.����ֱ�������ŷ�����ϵͳ��ģ�����Է���[J]  �������պ����ѧѧ��, 2006,V32(09): 1059-1062
Jin Hongtao, Jiao Zongxia, Li Chenggong, Zhou Rusheng.Modeling and characteristics analysis of redundant direct drive servo actuating system[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(09): 1059-1062
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