噪声与振动控制2018，Vol.38Issue(3)：77-82,6.DOI:10.3969/j.issn.1006-1355.2018.03.014
基于典型路况车身加速度提取及其影响因素分析
Acceleration Extraction and Influencing Factors Analysis of the Vehicle's Body Based on Typical Road Conditions
摘要
Abstract
A load spectrum acquisition system is built. The load spectrums of four different loading cars are collected according to the test standard, and the acceleration signals of the vehicle body for different strengthened road surfaces are extracted accurately. On this basis, the acceleration root mean square (RMS) of each tested vehicle is calculated in the time domain, and the values of the RMS of the provided ground rough roads relative to the RMS of the normal road are obtained. According to the wheel-body double mass vibration model, the influences of vehicle speed, road surface condition and vehicle load on the body's RMS acceleration are analyzed. The results show that the RMS values and the RMS relative values of the acceleration are greatly influenced by the strengthened road surface condition in a certain range, linearly correlated with the speed of the vehicle, and negatively correlated with the load. They decrease with the increasing of the load and vary slightly under the low load. This conclusion can provide a basis for vehicle performance evaluation and load selection.关键词
振动与波/载荷谱/加速度均方根/相对值/典型路面/载荷Key words
vibration and wave/load spectrum/acceleration root mean square/relative value/typical road surface/load分类
交通工程引用本文复制引用
邹喜红,柳春林,罗洋,刘瑜,王瑞东,程凯华..基于典型路况车身加速度提取及其影响因素分析[J].噪声与振动控制,2018,38(3):77-82,6.基金项目
重庆市关键技术资助专项(cstc2015zdcy-ztzx0207) （cstc2015zdcy-ztzx0207）
重庆市科技平台与基地建设项目(cstc2017zdcy-zdzx0076) （cstc2017zdcy-zdzx0076）
重庆市科技平台与基地建设项目(cstc2014pt-gc0014) （cstc2014pt-gc0014）
