液阻橡胶悬置的动特性试验分析及参数识别

Experimental Analysis and Parameter Identification on Dynamic Characteristics of Hydraulically Damped Rubber Mount

试验测试液阻橡胶悬置和橡胶主簧的低频动态特性。建立悬置集总参数模型,采用流固耦合有限元方法和基于不动点理论的参数识别方法辨识悬置集总参数。两种方法辨识结果的一致性说明了有限元模型的合理性,为液阻橡胶悬置设计开发提供了依据。

The low-frequency dynamic characteristics of hydraulically damped rubber mount and rubber main spring were tested.A lumped parameter model of mount was established,and the lumped parameters were identified by using fluid-structure interaction finite element method and the parameter identification method based on fixed point theory,respectively.The results from these two methods were consistent with each other,which validated the finite element model.It could therefore provide the basis for design and development of hydraulically damped rubber mount.