某型越野车试验场载荷谱的压缩与外推  

The Compression and Extrapolation of Load Spectrum for a Heavy Off-road Vehicle Obtained from Proving Ground Testing

作　　者：赵晓鹏[1] 张强 姜丁 朱先民[1] 冯树兴 岳巍强 

机构地区：[1]军事交通学院,天津300161 [2]军事交通运输研究所,天津300161

出　　处：《汽车工程》2009年第9期871-875,共5页Automotive Engineering

摘　　要：基于雨流计数法,对某型越野车在试验场实测的各路段载荷谱进行压缩;然后对压缩后的雨流均幅值矩阵进行强化外推和基于目标关联模型的比例叠加;最后对叠加后的雨流均幅值矩阵进行时域重构,得到了可用于室内道路模拟试验的目标载荷谱。Compression is conducted on the load spectra of an off-road vehicle measured at different sec-tions of proving ground based on rain-flow counting method. Then intensified extrapolation and target association model-based proportional superposition are performed on the rain-flow mean-amplitude matrix obtained after spectrum compression.Finally a time-domain reconstruction is carried out on the rain-flow mean-amplitude matrix after superposition, and a target load spectrum is obtained for the follow-up indoor road simulation test.

关 键 词：线性疲劳累积损伤理论 雨流计数法 载荷谱压缩 载荷谱外推 目标关联模型 

分 类 号：U467[机械工程—车辆工程]