带分段限位刚度的双向限位单层隔振系统冲击动力学理论模型研究

陈谦; 肖邵予; 张冠军

doi:10.19693/j.issn.1673-3185.03292

带分段限位刚度的双向限位单层隔振系统冲击动力学理论模型研究

Study on the impact dynamics theoretical model of bidirectional limited single-layer vibration isolation system with segmented limit stiffness

摘要

摘要:
目的针对在冲击激励作用下带限位器的隔振系统刚度呈非线性变化的问题，开展冲击动力学理论模型及其抗冲击性能研究。
方法首先，利用分段线性等效思想，建立带分段线性刚度限位器的双向限位单层隔振系统冲击动力学理论模型；然后，利用解析法对理论模型进行解析求解，并与不同冲击工况下的有限元法冲击响应进行对比验证。
结果在不同的冲击工况下，动力学理论模型的解析解与有限元数值解具有高度的一致性。
结论通过对比分析，验证了带分段限位刚度的双向限位单层隔振系统冲击动力学理论模型及求解方法的准确性，可为带限位器隔振系统的工作原理与性能特点研究提供理论依据。

Abstract:
Objective To address the issue of nonlinear stiffness changes in isolation systems with limiters under impact excitation, an impact dynamics theoretical model and its anti-impact performance research are conducted.
Methods First, using the idea of segmented linear equivalence, an impact dynamics theoretical model of a bidirectional limited single-layer vibration isolation system with a segmented linear stiffness limiter is established. The theoretical model is then solved using the analytical method and compared with the impact response of the finite element method under different impact conditions.
Results The analytical solution of the dynamic theoretical model is highly consistent with the finite element numerical solution under different impact conditions.
Conclusion Through comparative analysis, the accuracy of the impact dynamics theoretical model and solution method of the bidirectional limited single-layer vibration isolation system with segmented linear stiffness limiter is verified, providing a theoretical basis for research on the working principle and performance characteristics of vibration isolation systems with limiters.

HTML全文

参考文献(11)

施引文献

资源附件(0)