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Mechatronics design of stiffness enhancement of the feed supporting system for the square-kilometer array
Su, YX; Duan, BY; Nan, RD; Peng, B
2003-12-01
发表期刊IEEE-ASME TRANSACTIONS ON MECHATRONICS
卷号8期号:4页码:425-430
摘要Design and implementation of stiffness enhancement of a feed supporting system for the square-kilometer array (SKA) using electrorheological (ER) variable damper is presented in this paper. The feed supporting system consists of a large parallel cable manipulator and a fine-tuning Stewart platform. Hence, the feed supporting system is a large delay system and sensitive to the influence of wind. Furthermore, the adjustment of the fine-tuning Stewart platform will affect the coarse tracking control. Therefore, in order to suppress these disturbances and realize the independent control of the two parallel manipulators, it is necessary to enhance the stiffness of the feed supporting system. The proposed ER variable damper is designed and directly attached to the shaft of the servomotor of the feed supporting system to achieve high servo stiffness and trajectory tracking accuracy. The model of the feed supporting system is first derived, the structure of the variable-viscous ER damper is presented and then the damping coefficient model is developed. The validation of this stiffness enhancement design of the feed supporting system is demonstrated with position PD control of the feed supporting system. This result has built a solid base for the accomplishment of the high-accuracy requirement of the SKA.
关键词Cable Electrorheological (Er) dampEr Manipulator Mechatronics Radio Astronomy System Stiffness
收录类别SCI
语种英语
WOS记录号WOS:000188040600001
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8420
专题射电天文研究部
作者单位1.Xidian Univ, Sch Electro Mech Engn, Xian 710071, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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GB/T 7714
Su, YX,Duan, BY,Nan, RD,et al. Mechatronics design of stiffness enhancement of the feed supporting system for the square-kilometer array[J]. IEEE-ASME TRANSACTIONS ON MECHATRONICS,2003,8(4):425-430.
APA Su, YX,Duan, BY,Nan, RD,&Peng, B.(2003).Mechatronics design of stiffness enhancement of the feed supporting system for the square-kilometer array.IEEE-ASME TRANSACTIONS ON MECHATRONICS,8(4),425-430.
MLA Su, YX,et al."Mechatronics design of stiffness enhancement of the feed supporting system for the square-kilometer array".IEEE-ASME TRANSACTIONS ON MECHATRONICS 8.4(2003):425-430.
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