卫星运输T型钢丝绳隔振器刚度及阻尼研究  

Study on Stiffness and Damping of T‑wire Rope Isolator for Satellite Transportation

作　　者：陈骐[1] 李世响 郑京良[3] 贾奥男 熊克[4] 尹永康 CHEN Qi;LI Shixiang;ZHENG Jingliang;JIA Aonan;XIONG Ke;YIN Yongkang(Shanghai Aircraft Design&Research Institute Shanghai,201210,China;Unit 61096 of PLA Beijing,102308,China;Shanghai Institute of Satellite Engineering Shanghai,201109,China;State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and AstronauticsNanjing,210016,China)

机构地区：[1]上海飞机设计研究院,上海201210 [2]中国人民解放军61096部队,北京102308 [3]上海卫星工程研究所,上海201109 [4]南京航空航天大学机械结构力学及控制国家重点实验室,南京210016

出　　处：《振动．测试与诊断》2024年第3期538-543,621,共7页Journal of Vibration,Measurement & Diagnosis

基　　金：江苏省高校优势学科建设工程资助项目。

摘　　要：钢丝绳隔振器可以缓解卫星运输过程中振动产生的危害,但其缺少试验基础研究,无法提供仿真输入,难以准确实现卫星损伤仿真。针对此问题,对T型钢丝绳隔振器刚度及阻尼特性进行了理论分析和试验研究。首先,对钢丝绳隔振器系统的力学特性进行了理论分析,建立了理想的迟滞回环曲线;其次,建立了钢丝绳隔振器静刚度和动刚度力学测试系统;最后,通过准静态加载以构建静刚度条件下压缩、横滚、剪切状态力和位移的关系。在预承载力为5 kN、振幅为1 mm条件下,分别测试了激振频率5~8 Hz条件下的动刚度性能。结果表明:准静态加载条件下,钢丝绳隔振器的力和位移关系较为稳定;动刚度条件下,在5~8 Hz频率之间,动刚度变化较为稳定;等效阻尼随着激振频率的增加而增加。Wire rope isolators can alleviate the damage caused by vibration during satellite transportation,but it is difficult to accurately simulate satellite damage due to the lack of basic experimental research.To solve this problem,the stiffness and damping characteristics of T-wire rope isolator are analyzed theoretically and studied experimentally.Firstly,the mechanical characteristics of the wire rope isolator system are analyzed theoretically,and the ideal hysteresis loop curve is established.Secondly,the static stiffness and dynamic stiffness test system of the steel wire rope isolator is established.Finally,quasi-static loading is used to construct the relationship between compression,roll,shear state force and displacement under static stiffness conditions.Under the condition of prepressure of 5 kN and amplitude of 1 mm,the dynamic stiffness performance under excitation frequency of 5~8 Hz is tested respectively.The results show that the relationship between force and displacement of the steel wire rope isolator is stable under quasi-static loading.Under the condition of dynamic stiffness,the change of dynamic stiffness is relatively stable between the frequency of 5~8 Hz.The equivalent damping increases with the increase of excitation frequency.

关 键 词：卫星运输 钢丝绳隔振器 刚度 迟滞特性 损伤仿真 

分 类 号：TH113.1[机械工程—机械设计及理论] TB123[理学—工程力学]