变幅频载荷下不同结构液阻衬套内特性的实测与计算分析

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (2) : 166-174.

论文

杨超峰1,2，周云郊3，黄翔龙2，李锋4，李有意4，刘霏霏1

作者信息 +

Actual measurement and numerical analysis on the internal characteristics of different structures of hydraulically damped bushings under variable amplitude and frequency loads

YANG Chaofeng1,2,ZHOU Yunjiao3,HUANG Xianglong2,LI Feng4,LI Youyi4,LIU Feifei1

Author information +

文章历史 +

摘要

采用实验的方法，对不同结构式液阻衬套在不同振幅及不同频率下的静、动特性及内特性进行了测试。推导得到一个统一的可表征多惯性通道-多节流孔式液阻衬套的集总参数模型，对液阻衬套的动特性进行了描述。建立了统一的多惯性通道-多节流孔式液阻衬套液体通道内流量响应及液室内压力波动的响应方程。采用直接流固耦合及不变特征点相结合的方法得到液阻衬套实物模型的计算参数，计算与测试结果对比验证了模型的正确性。对不同结构式液阻衬套在不同振幅及频率激振下的内特性进行了计算研究，并与理论推导结论及测试结果进行了对比分析，验证了计算分析的正确性。文中的计算方法可为液阻衬套的初期选型及设计开发提供直接参考。

Abstract

Using experimental methods, the static and dynamic characteristics and internal characteristics of different structural hydraulic bushings under different amplitudes and different frequencies were tested. A unified multi-inertial tracks-multi-orifices hydraulic bushing lumped parameter model is derived, and the dynamic characteristics of the hydraulic bushing are described. A unified multi-inertial tracks-multi-orifices hydraulic bushing fluid flow response in the fluid channel and the response equation of pressure fluctuations in the fluid chamber are established. The calculation parameters of the physical model of the hydraulic bushing are obtained by the combination of direct fluid-solid coupling and fixed points. The calculation results are compared with the test to verify the correctness of the model. The calculation analyzes the internal characteristics of different structural hydraulic bushings under different amplitude and frequency excitation, and compares the theoretical derivation and experimental data to verify the correctness of the calculation and analysis results. The calculation method in the article can provide a direct reference for the initial selection, design and development of hydraulic bushings.

导出引用

杨超峰1,2，周云郊3，黄翔龙2，李锋4，李有意4，刘霏霏1 . 变幅频载荷下不同结构液阻衬套内特性的实测与计算分析[J]. 振动与冲击, 2023, 42(2): 166-174

YANG Chaofeng1,2,ZHOU Yunjiao3,HUANG Xianglong2,LI Feng4,LI Youyi4,LIU Feifei1. Actual measurement and numerical analysis on the internal characteristics of different structures of hydraulically damped bushings under variable amplitude and frequency loads[J]. Journal of Vibration and Shock, 2023, 42(2): 166-174

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