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
1.School of Mechatronics & Vehicle Engineering，East China Jiaotong University，Nanchang 330013, China;
2.Anhui Zhongding NVH Co., Ltd.，Ningguo 242300, China;
3.School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China;
4.General R & D Institute of China FAW Group Co.,Ltd.，Changchun 130013, China
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.
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. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(2): 166-174.
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