智能压电材料MFC在太阳电池阵帆板上的主动抑振研究  

Active vibration suppression of intelligent piezoelectric material MFC on solar array panel

作　　者：骆海涛[1,2] 吴星元 刘广明[1,2] 富佳[1,2] LUO Hai-tao;WU Xing-yuan;LIU Guang-ming;FU Jia(State Key Laboratory of Robotics,Shenyang Institute of Automation,Chinese Academy of Sciences(CAS),Shenyang 110016,China;Institutes for Robotics and Intelligent Manufacturing,Chinese Academy of Sciences,Shenyang 110169,China;School of Mechanical Engineering,Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]中国科学院沈阳自动化研究所机器人学国家重点实验室,辽宁沈阳110016 [2]中国科学院机器人与智能制造创新研究院,辽宁沈阳110169 [3]沈阳理工大学机械工程学院,辽宁沈阳110159

出　　处：《振动工程学报》2022年第3期536-543,共8页Journal of Vibration Engineering

基　　金：国家自然科学基金资助项目(51975567);辽宁省“兴辽英才计划”资助项目(XLYC1907152);机器人学国家重点实验室自主课题(2022-Z01);中科院青年创新促进会项目(2018237)。

摘　　要：为了有效解决空间太阳电池阵帆板由于振动对航天器位姿的干扰问题,进一步提高卫星和轨道器的飞控稳定性及其自身的指向精度(对地和对日定向),设计了一套太阳电池阵帆板主动抑振地面实验系统,研究了压电纤维复合材料(Macro Fiber Composite,MFC)的主动抑振机理,采用模态应变能最大理论确定了MFC的最佳粘贴区域。设计了一款PID自整定控制器,开展了太阳电池阵帆板系统的主动抑振实验,验证了PID自整定控制算法的可行性。实验中分别进行了自由振动状态下的抑振以及引入正弦干扰和白噪声干扰下的抑振研究。实验结果表明,在未施加主动控制时,帆板自由振动趋于稳定的时间超过40 s;在采用了基于PID自整定算法的主动控制后,帆板的自由振动可在3 s内趋于稳定。此外,在上述正弦和随机白噪声两种信号干扰激励下,帆板的自激振动均能在3~5 s内得到有效控制,并且主动控制前后帆板稳定于平衡位置的幅值从18 mm降到了3 mm,抑振效率达到6倍,效果明显。此外,通过对时域信号进行傅里叶变换,从频谱曲线可知其抑振效果也非常显著,响应幅值最大从24 mm降低到了6 mm,抑振效率也达到4倍。In order to effectively solve the position and attitude interference problem of spacecrafts caused by the vibration of the space solar array sailboard,further improve the flight control stability of satellites and orbiters and their own pointing accuracy(earth and sun orientation),a set of solar array active vibration suppression ground experimental system is designed.The active vibration suppression mechanism of macro fiber composite(MFC)is studied.The optimal bonding area of MFC is determined by the maximum modal strain energy theory.A PID self-tuning controller is designed,and the active vibration suppression experiment of the solar array is carried out to verify the feasibility of the PID self-tuning control algorithm.In the experiment,the vibration suppression in free vibration state,sinusoidal interference and white noise interference are studied respectively.The experimental results show that the free vibration tends to be stable for more than 40 s without active control.After adopting the active control based on PID self-tuning algorithm,the free vibration of the sailboard can be stabilized within 3 s.In addition,the self-excited vibration of the sailboard can be effectively controlled in 3~5 s under the above sinusoidal and random white noise signal interference excitation,and the amplitude of the sailboard stabilized in the balance position before and after active control is reduced from 18 to 3 mm,and the vibration suppression efficiency is up to 6 times.In addition,through the Fourier transform of the time-domain signal,it can be seen from the spectrum curve that the vibration suppression effect is also very significant,the maximum response amplitude is reduced from 24 to 6 mm,and the vibration suppression efficiency can reach 4 times.

关 键 词：主动控制 太阳能电池阵 MFC PID自整定 

分 类 号：TB535[理学—物理] V414.42[理学—声学]