空间制冷机被动隔振装置设计及仿真  

Design and Simulation of Passive Vibration Isolation Device for Spaceborne Cryocooler

作　　者：朱琛 周徐斌[1] 朱清煜[2] 应敏晓 谢溪凌[3] 刘兴天[1] Zhu Chen;Zhou Xubin;Zhu Qingyu;Ying Minxiao;Xie Xiling;Liu Xingtian(Engineering and Technology Center of Aerospace Equipment Micro-vibration Environment Simulation,Shanghai Institute of Satellite Engineering,Shanghai 210016,China;Shanghai Academy of Spaceflight Technology,Shanghai 201109,China;State Key Laboratory of Mechanical Systems and Vibration,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海卫星工程研究所航天装备微振动环境模拟工程技术中心,上海210016 [2]上海航天技术研究院,上海201109 [3]上海交通大学机械系统与振动国家重点实验室,上海200240

出　　处：《动力学与控制学报》2024年第9期89-94,共6页Journal of Dynamics and Control

基　　金：国家重点研发计划资助(2022YFB3902900)。

摘　　要：遥感卫星的发展让空间制冷机的应用愈发广泛,制冷机在为探测器提供所需温度环境的同时也带来了微振动干扰,严重时会影响探测器性能,因此,需要对制冷机的微振动进行抑制.基于松弛型阻尼器和三点均布支撑的布局形式,设计了制冷机被动隔振装置,分析了装置的隔振性能,对比了动力学模型和有限元模型的传递特性.研究结果表明,所设计的被动隔振装置对制冷机主频、二倍频、三倍频隔振效率分别达到90%、95%、97%,本文对空间制冷机的被动隔振装置工程设计具有参考意义.The development of remote sensing satellites has made the application of spaceborne cryocooler widespread.The cryocooler provides the required temperature environment for the detector,but brings micro-vibration interference which will affect the performance of detector.Therefore,it is necessary to suppress the micro-vibration of cryocooler.In this paper,a passive vibration isolation device for cryocooler is designed based on relaxation damper and layout of three-point uniform support,and the isolation performance of the device is analyzed.The transfer characteristics of dynamic model and finite element model are compared.The result shows that the vibration isolation efficiency of the designed passive vibration isolation device for the main frequency,double frequency and triple frequency can achieve 90%,95%and 97%.This paper can provide significant reference for designing such kind of passive vibration isolation device for sapceborne cryocooler.

关 键 词：微振动 松弛型阻尼 空间制冷机 被动隔振 传递率 

分 类 号：U482.2[交通运输工程—载运工具运用工程]