Mechanical impedance derivation and characteristic characteristic of vehicle suspension

被引：0
|
作者：
Chen Q. [1 ]
Fan W.-G. [2 ]
Wang S. [2 ]
Fang Q. [2 ]
Zhuang Y. [1 ]
机构：
[1] State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun
[2] China North Vehicle Research Institute, Beijing
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2022年 / 52卷 / 05期
关键词：
Dimensionless parameters; Invariant point; Negative effect of unsprung-mass; Suspension mechanical impedance; Vehicle engineering;
D O I：
10.13229/j.cnki.jdxbgxb20200999
中图分类号：
学科分类号：
摘要：
The general quarter car model that could be used for passive suspension, semi-active suspension, and active suspension is constructed. Then the impedance matrix is derived, and the input force is also separated. It seems that the road and tire are independent, while the input force indicates the relation between the road and the tire, which coupled the road and tire's property. The displacement impedance, velocity impedance, and the acceleration impedance of spring-mass are calculated by the transformation of the impedance augmented matrix. The suspension deflection impedance and the tire deflection impedance are also calculated by the impedance augmented matrix. The dimensionless parameters of the suspension stiffness and mass are employed to analyze the impaction of the spring-mass acceleration impedance, suspension deflection impedance, and tire deflection impedance in detail. The dimensionless parameters coupling with the spring-mass and unsprung-mass property could make up for the disadvantage of considering just one parameter. The damper also has an effect on the suspension impedance property as the dimensionless paramerters. The suspension mechanical impedance analysis is helpful to the vehicle design, performance, optimization, and the inhibition of negative effects of unsprung-mass in the mechanism. © 2022, Jilin University Press. All right reserved.
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页码：990 / 997
页数：7
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