基于压电陶瓷作动的低频隔振器  

Low Frequency Vibration Isolator Driven by Piezoelectric Ceramics

作　　者：张宇博 王琳涛 李林 王晓明[4] 徐振邦[1,4] 陈洋[1,3,4] ZHANG Yubo;WANG Lintao;LI Lin;WANG Xiaoming;XU Zhenbang;CHEN Yang(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;Beijing Institute of Control Engineering,Beijing 100094,China;University of Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of on-Orbit Manufacturing and Integration for Space Optics System,Chinese Academy of Sciences,Changchun 130033,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033 [2]北京控制工程研究所,北京100094 [3]中国科学院大学,北京100049 [4]中国科学院空间光学系统在轨制造与集成系统重点实验室,长春130033

出　　处：《空间控制技术与应用》2025年第1期25-32,共8页Aerospace Control and Application

基　　金：国家自然科学基金资助项目(62235018和52275083);光电测量与智能感知中关村开放实验室与北京控制工程研究所空间光电测量与感知实验室开放基金(LabSOMP-2022-09)。

摘　　要：航天器在轨定位精度容易受到环境低频微振动和有效载荷引起的内部扰动的影响.本研究设计了一种具有高刚度的串联式压电作动隔振器.建立了压电隔振器的动力学模型和多传感器复合反馈控制方法,并比较了反馈控制参数的优劣和抗干扰特性.通过仿真模型验证了基于所提出的压电隔振器的可行性.通过实验验证了上述设计与仿真的准确性.结果表明,所提出的压电隔振器在1~25Hz能提供-15dB以下的基础振动衰减能力,在共振峰处可以衰减-25dB,同时具备高刚度特性.因此,该隔振器能够提供优异的低频隔振性能和惯性稳定性,有效抵抗有效载荷的内部扰动.The in-orbit positioning accuracy of spacecraft is susceptible to the influence of low-frequency micro-vibrations in the environment and internal disturbances caused by payloads.This study designed a series of piezoelectric actuators with high stiffness for vibration isolation.Firstly,the dynamic model of the piezoelectric isolator and a dual-sensor feedback control method were established,and the merits and demerits of the feedback control parameters and anti-disturbance characteristics were compared.The feasibility of the piezoelectric isolator proposed was verified through simulation models.Finally,experiments were conducted to confirm the accuracy of the aforementioned design and simulation.The results show that the proposed piezoelectric isolator can provide a basic vibration attenuation capability of-20dB in the 1~25Hz range,and attenuate the resonance peak by-25dB,while also possessing high stiffness characteristics;it can offer excellent low-frequency vibration isolation performance and inertial stability,and effectively resist internal disturbances caused by payloads.

关 键 词：压电陶瓷 主动隔振 反馈控制 动力学建模 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]