| 明波,贾进峰.履带车辆特殊路面谱实车测试与分析[J].装备环境工程,2012,9(5):37-41. MING Bo,JIA Jin-feng.Test and Analysis of Special PSD of Tracked Vehicles[J].Equipment Environmental Engineering,2012,9(5):37-41. |
| 履带车辆特殊路面谱实车测试与分析 |
| Test and Analysis of Special PSD of Tracked Vehicles |
| 投稿时间：2012-07-22 修订日期：2012-10-15 |
| DOI： |
| 中文关键词: 履带车辆 路面谱 功率谱密度 空间频率 时间频率 |
| 英文关键词:tracked vehicle road surface profiles power spectral density（PSD） spatial frequency time frequency |
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| 中文摘要: |
| 基于GB/T 7031—2005建立了路面谱模型， 分析了加速度法测试履带车辆特殊路面路面谱的基本原理， 并以此为理论依据， 设计出在第一、 五负重轮轮轴处安装加速度传感器并得出时域曲线的测试方案， 分别记录了不同速度下长度为4 m的长波路和越野土路的加速度时域曲线， 利用Matlab分析软件生成位移功率谱密度， 并拟合出标准路面谱， 计算出特征值。 |
| 英文摘要: |
| Road surface profiles model was established based on GB/T 7031—2005. The basic principle of using acceleration method to measure special PSD of tracked vehicles was analyzed. According to these theories, acceleration sensors were fix on the axles of the 1st and 5th loading wheels and the time frequency curve was obtained. Acceleration time domain curves on 4 m long wave road and off-road road at different speeds were measured and recorded. The displacement PSD was acquired by using Matlab software and standard road surface profiles were fitted and its characteristic values were calculated. |
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