情态动词
表面光洁度
车辆动力学
工程类
汽车工程
表面粗糙度
行驶质量
国际粗糙度指数
点(几何)
数学
机械工程
材料科学
几何学
复合材料
高分子化学
作者
Qingxia Zhang,Jilin Hou,Xiaoyang Hu,Yuan Li,Łukasz Jankowski,Xinhao An,Zhongdong Duan
出处
期刊:Measurement
[Elsevier]
日期:2022-05-27
卷期号:199: 111348-111348
被引量:15
标识
DOI:10.1016/j.measurement.2022.111348
摘要
Accurate information about vehicle parameters and road roughness is of great significance in vehicle dynamic analysis, road driving quality, etc. In this study, a method for estimating vehicle parameters and road roughness was developed using the measured vehicle responses from field tests which is efficient, economical, and accurate. First, the full-vehicle model was introduced. Then, vehicle modal parameters were identified using the consequent free responses of a vehicle passing over bumps. Second, the expression of the vehicle frequency response function (FRF) with respect to the wheel contact point was derived from the vehicle equation of motion, and a road roughness estimation method based on the vehicle FRF was developed. Third, field tests in which the vehicle passes over bumps were performed for vehicle model identification. Finally, field tests for road roughness estimation were carried out using a calibrated vehicle to verify the effectiveness of the proposed methods.
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