弹簧振子隔离器模型动态刚度特性试验及仿真研究  

Experimental and Simulation Study on Dynamic Stiffness Characteristics of Spring Oscillator Isolator Model

作　　者：秦晓猛 刘天彦[2] 牟浩文 宁薇薇 QIN Xiao-meng;LIU Tian-yan;MOU Hao-wen;NING Wei-wei(Tianjin Aerospace Reliability Technology Co,Ltd.(Chengdu Branch),Chengdu 610100;Nuclear Power Institute of China,Chengdu 610213)

机构地区：[1]天津航天瑞莱科技有限公司成都分部,成都610100 [2]中国核动力研究设计院,成都610213

出　　处：《环境技术》2024年第3期206-213,共8页Environmental Technology

摘　　要：隔离器的动刚度和冲击刚度是隔离器性能评估的核心技术指标,需要对其进行准确的评估,已满足不同使用环境的需要。动刚度的测试方法主要有椭圆法、振动激励法和自激振荡法,冲击刚度测试技术主要有跌落法和落锤法。根据试验件的特性,合理选择测试方法,能够极大地提高效率。本文采用振动激励法对弹簧振子隔离器模型进行动刚度仿真及试验分析,采用跌落法对弹簧阵子隔离器模型进行冲击刚度仿真和试验分析。基于仿真分析和试验分析对比明确了测试的有效性,并根据相关的试验数据,梳理了动刚度和冲击刚度各种测试方法的优缺点,以供相关的测试技术人员参阅。The dynamic stiffness and impact stiffness of isolators are the core technical indicators for the performance evaluation of isolators.Accurate assessment is necessary to meet the needs of different usage environments.The main methods for testing dynamic stiffness include the ellipse method,vibration excitation method,and self-excited oscillation method.The main techniques for testing impact stiffness are the drop method and the drop hammer method.Choosing the appropriate testing method based on the characteristics of the test piece can greatly improve efficiency.This paper employs the vibration excitation method to conduct dynamic stiffness simulation and experimental analysis on the spring oscillator isolator model,and uses the drop method for impact stiffness simulation and experimental analysis of the same model.Based on a comparison of simulation analysis and experimental analysis,the effectiveness of the tests was clarified.Moreover,the advantages and disadvantages of various testing methods for dynamic and impact stiffness were sorted out based on the relevant experimental data,to serve as a reference for related testing technicians.

关 键 词：隔离器 弹簧振子 动刚度 冲击刚度 试验研究 仿真分析 

分 类 号：TH113[机械工程—机械设计及理论]