液压衬套集总参数模型动态特性液-固耦合有限元分析

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (17) : 138-142.

论文

液压衬套集总参数模型动态特性液-固耦合有限元分析

李林1, 2 曾祥坤3

作者信息 +

Dynamic characteristics analysis of hydraulic bushing based on lumped parameter model and FSI finite element simulation

LI Lin1, 2 ZENG Xiangkun3

Author information +

文章历史 +

摘要

以车辆底盘系统中应用最为广泛的新型隔振元件——径向型液压衬套为研究对象，采用双向液-固耦合非线性有限元分析技术辨识液压衬套动力学性能分析的集总参数模型中的主要物理参数，并结合集总参数模型和非线性有限元法计算分析了液压衬套的动态特性。计算结果与实验结果及数值预测结果对比分析表明，有限元分析技术在液压衬套集总参数识别及动力学性能分析方面的可行性和准确性。对于液压阻尼特征产品设计优化，有限元技术是一种高效经济的开发手段。

Abstract

Radial damping hydraulic bushing is the object of this study, which is widely used as vibration isolator in the vehicle chassis system. The lumped parameter (LP) model for hydro-bushing is usually applied to the dynamic characteristic analyses. Two-way fluid-structure interaction FEA (nonlinear finite element analysis) technique is used to identify the main parameters of the LP model. The FEA method also can be applied to calculating the dynamic characteristic of hydraulic bushing. Comparing the calculated results with the experimental data and numerical prediction results, the feasibility and accuracy of the FEA method was confirmed. The method proposed in this paper can ensure high quality and low cost in hydraulic bushing development.

导出引用

李林; 曾祥坤. 液压衬套集总参数模型动态特性液-固耦合有限元分析[J]. 振动与冲击, 2014, 33(17): 138-142

LI Lin; ZENG Xiangkun. Dynamic characteristics analysis of hydraulic bushing based on lumped parameter model and FSI finite element simulation[J]. Journal of Vibration and Shock, 2014, 33(17): 138-142