湖南大学学报（自然科学版）2017，Vol.44Issue(2)：16-25,10.DOI:10.16339/j.cnki.hdxbzkb.2017.02.003
液压互联悬架关键参数对车辆 频响特性的影响
Influence of Key Parameters of Hydraulically Interconnected Suspension on Frequency Domain Characteristics of Vehicles
摘要
Abstract
To investigate the influence of the parameters of the hydraulically interconnected suspension on the responses of a vehicle, a 7-DOFs (degrees of freedom) frequency domain model of the vehicle coupling with hydraulically interconnected suspension was established, and the frequency response function of roll angle acceleration, pitch angle acceleration, vertical acceleration on the center of mass, and vertical force on left-rear tire were then deduced.The parametric effects of the hydraulically interconnected suspension including the system oil pressure, volume of the accumulators, the differences and ratios between the areas of the two chambers of the cylinders on the dynamic response characteristics of the vehicle were evaluated.The results show that the system oil pressure has the adverse correlation with the volume of the accumulators on the frequency domain responses, the differences between the cylinder areas play a significant role on the responses, and the ratios between the cylinder areas have a certain effect on the responses of the roll angle acceleration and the tire forces but limited effect on the others.The performance test of the vehicle was taken to verify the simulation model, which shows that the influences of the key parameters on the frequency response characteristics of the vehicle are in a good accordance.关键词
液压互联悬架/频域响应/车辆动力学/功率谱密度Key words
hydraulically interconnected suspension/frequency domain analysis/vehicle dynamics/power spectral density分类
交通工程引用本文复制引用
陈盛钊,张农,张邦基,郑敏毅,章杰..液压互联悬架关键参数对车辆 频响特性的影响[J].湖南大学学报（自然科学版）,2017,44(2):16-25,10.基金项目
国家自然科学基金资助项目(51675152),National Natural Science Foundation of China (51675152) （51675152）
湖南大学汽车车身先进设计制造国家重点实验室开放课题(71575005),State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body of Hunan University(71575005) （71575005）
