悬架参数对汽车平顺性影响分析  

Analysis of Influence of Suspension Parameters on Vehicle Ride Comfort

作　　者：张丽萍[1] 谢黎明 Zhang Liping;Xie Liming(College of Automobile and Traffic Engineering,Liaoning University of Technology,Liaoning Jinzhou 121001)

机构地区：[1]辽宁工业大学汽车与交通工程学院,辽宁锦州121001

出　　处：《汽车实用技术》2018年第21期64-67,共4页Automobile Applied Technology

摘　　要：悬架参数在汽车研发过程中占有重要地位,直接影响汽车行驶平顺性能。文章采用系统微分方程,以二自由度汽车悬架为模型,使用MATLAB仿真,绘制出功率谱密度图,以此为根据分析减振器阻尼与悬架刚度对车辆行驶平顺性的影响。得出悬架刚度、减振器阻尼对悬架行驶平顺性影响各异,应该在悬架可用的动行程范围内来尽量保证减振器阻尼与悬架刚度减小来增加行驶的平顺性。通过对汽车悬架参数的研究可以降低汽车的研发成本,在一定程度内缩短研发周期。Suspension Parameter plays an important role in the automotive development process, directly affect the smoothperformance cars. In this paper, the system differential equations are used to model the two-degree-of-freedom vehiclesuspension. Using MATLAB simulation, the power spectral density map is plotted. Based on this, the impact of damperdamping and suspension stiffness on vehicle ride comfort is analyzed. It is concluded that the impact of suspension stiffnessand shock absorber damping on the suspension ride comfort is different. It should be ensured that the shock absorber dampingand suspension stiffness are reduced to increase ride comfort within the available dynamic travel range of the suspension. Bystudying the parameters of the vehicle suspension, the research and development costs of the automobile can be reduced, andthe development cycle can be shortened to some extent.

关 键 词：平顺性 MATLAB 悬架刚度 减振器阻尼 

分 类 号：U467[机械工程—车辆工程]