机械科学与技术2024，Vol.43Issue(1)：16-22,7.DOI:10.13433/j.cnki.1003-8728.20220197
准零刚度隔振平台的冲击响应及能量分析
Shock Response and Energy Analysis of Quasi-zero Stiffness Vibration Isolation Platform
摘要
Abstract
Shock response and energy analysis of quasi-zero stiffness(QZS)vibration isolation platform is carried out.To focus on the shock performance and energy loss characteristics,the six-degree freedom nonlinear dynamic equations of the QZS system under impact excitation are deduced firstly.The shock response of system is numerically analyzed and compared with that of the corresponding linear isolation system.Subsequently,the influences of damping and structural parameters on the buffering performance are analyzed by using the energy loss velocity as the evaluation index of the buffering performance.The results indicate that the response amplitude of system is higher than that of the corresponding linear system,but the response of the QZS system declines faster than that of the corresponding linear system,and the number of periods required for attenuation is less than that of the linear system.Therefore,the damping can improve the buffering performance,and the stiffness ratio and inclination angle have few impacts on the buffering performance of the QZS vibration isolation platform.关键词
准零刚度/隔振系统/冲击响应/能量损耗Key words
quasi-zero stiffness/vibration isolation system/shock response/energy loss分类
力学引用本文复制引用
刘彦琦,顾黄森,宋春芳,汪新,邓二杰,王友会..准零刚度隔振平台的冲击响应及能量分析[J].机械科学与技术,2024,43(1):16-22,7.基金项目
北京市自然科学基金项目(1182010)、北京市西城区优秀人才培养拔尖团队项目及轨道交通基础设施性能监测与保障国家重点实验室开放课题(HJGZ2021101) （1182010）
