空间控制技术与应用2025，Vol.51Issue(1)：25-32,8.DOI:10.3969/j.issn.1674-1579.2025.01.003
基于压电陶瓷作动的低频隔振器
Low Frequency Vibration Isolator Driven by Piezoelectric Ceramics
摘要
Abstract
The in-orbit positioning accuracy of spacecraft is susceptible to the influence of low-frequency micro-vi-brations in the environment and internal disturbances caused by payloads.This study designed a series of piezoelec-tric 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 parame-ters 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 aforemen-tioned 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 pos-sessing 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Key words
piezoelectric ceramics/active vibration isolation/feedback control/dynamic modeling引用本文复制引用
张宇博,王琳涛,李林,王晓明,徐振邦,陈洋..基于压电陶瓷作动的低频隔振器[J].空间控制技术与应用,2025,51(1):25-32,8.基金项目
国家自然科学基金资助项目(62235018 和 52275083)和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) National Natural Science Foundation of China(62235018 and 52275083)and Open Fund for Zhongguancun Open La-boratory of Optoelectronic Measurement and Intelligent Perception and Beijing Institute of Control Engineering Space Optoelectronic Meas-urement and Perception Laboratory(LabSOMP-2022-09) （62235018 和 52275083）
