柱状橡胶减振器非线性建模技术研究

Study on the Nonlinear Modeling of Cylindrical Rubber Absorber

关键词:  柱状橡胶减振器  非线性弹簧阻尼单元  冲击刚度曲线

Key words:  Cylindrical rubber absorber  Nonlinear spring-damping element  Shock stiffness curve

摘要:

针对柱状橡胶减振器在大量级冲击条件下,基于线弹性理论假设带来仿真误差较大的问题,提出了一种利用非线性弹簧阻尼单元的建模方法,给出了该方法的推导过程及冲击刚度曲线的获取方法。通过冲击试验验证了该方法具有很高的计算精度,为减振器的非线性建模技术深入研究奠定了重要基础。

Abstract:

According to linear elastic theory, a large error about cylindrical rubber absorber in the condition of high shock is caused during the simulation analysis.In this paper, a new modeling method based on nonlinear spring-damping element is proposed, The derivation process of the method is described and the way to get the shock stiffness curve of the rubber absorber is introduced at the same time.The high precision of the method is verified by many shock experiments.This paper has laid the foundation for deeply study on rubber absorber based on nonlinear modeling theory