大型空间桁架天线振动控制及作动器位置优化

罗杰; 谢兰川; 张云; 明路遥; 刘青林; 魏薇

Vibration Control of Large Space Truss Antenna and Optimization of Actuator Position

Received:March 23, 2016 Revised:August 15, 2016

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DOI：10.7643/ issn.1672-9242.2016.04.018

KeyWord:space truss antenna position optimization of actuator active vibration control genetic algorithm

Author	Institution
LUO Jie	Southwest Technology And Engineering Research Institute, Chongqing , China
XIE Lan-chuan	Southwest Technology And Engineering Research Institute, Chongqing , China
ZHANG Yun	Southwest Technology And Engineering Research Institute, Chongqing , China
MING Lu-yao	Southwest Technology And Engineering Research Institute, Chongqing , China
LIU Qing-lin	Southwest Technology And Engineering Research Institute, Chongqing , China
WEI Wei	Southwest Technology And Engineering Research Institute, Chongqing , China

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Abstract:

Objective To conduct active control on the vibration of large space flexible truss antenna structure and optimize the position of actuator. Methods A linear quadratic optimal control algorithm was used to suppress the vibration of the antenna structure. The sum of system energy and control energy was taken as the optimization performance index. The position of actuator was optimized with genetic algorithm. Results The vibration of the antenna structure was well suppressed in 10 s and the vibration amplitude was reduced by one order of magnitude when being controlled by two optimal actuators. Conclusion Appropriately increasing the number of actuators and properly configuring the position of the actuator can effectively suppress the vibration of flexible antenna structure.