Experiment and modeling of the nonlinear dynamic characteristics of a hydraulic bushing used in a vehicle suspension#br#
Yang Chao-Feng1 Yin Zhi-Hong1 Duan Xiao-Cheng2 Lu Zhao-Ping3 Shangguan Wen-Bin1,2
1. College of Automotive Engineering, South China University of Technology, Guangzhou,510641;
2. Ningbo Tuopu Group Co., Ltd., Ningbo 315800;
3. SAIC GM Wuling Automobile Co., Ltd., Liuzhou, 545007
The dynamic characteristics of the hydraulic bushing, namely the dynamic stiffness and the loss angle, are crucial for the performance of the vehicle suspension. In the present work, the dynamic stiffness and the loss angle of a hydraulic bushing is tested and compared with the results predicted by a nonlinear lumped parameter model whose parameters are extracted by a parameter identification technique. Using the model, the effect of the main rubber and the inertia track on the dynamic stiffness and the loss angle is investigated. It is found the real part of the dynamic stiffness has a fix feature point while the magnitude of the dynamic stiffness tends to a certain constant value under the high frequency excitation. The good correlation suggests the validity of the model and the parameter identification implementation.
杨超峰1 殷智宏1上官文斌1, 2 段小成2 吕兆平3. 汽车悬架液压衬套非线性动特性的实验与建模方法研究[J]. 振动与冲击, 2016, 35(3): 79-86.
Yang Chao-Feng1 Yin Zhi-Hong1 Duan Xiao-Cheng2 Lu Zhao-Ping3 Shangguan Wen-Bin1,2. Experiment and modeling of the nonlinear dynamic characteristics of a hydraulic bushing used in a vehicle suspension#br#. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(3): 79-86.
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