基于有限元分析的车辆驱动桥壳台架加速疲劳试验  

Driving Axle Housing Accelerated Fatigue Bench Test Based on FEA

作　　者：丛楠[1] 陈循[1] 尚建忠[1] 梁科山[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《国防科技大学学报》2009年第6期106-109,共4页Journal of National University of Defense Technology

基　　金：国家部委资助项目(203020102);国防科技大学研究生创新基金资助项目(0809)

摘　　要：针对开展驱动桥壳台架加速疲劳试验对删减载荷谱的实际需求,提出了基于有限元虚拟台架试验获得删减载荷谱的试验与分析方法。在有限元仿真分析环境下对某军用特种车辆驱动桥壳进行静强度试验、疲劳寿命预测、应变历程提取以及时间关联损伤分析等工作,得到了用于加速台架试验的删减载荷谱。台架试验表明,使用该方法获得的删减载荷谱能够在准确反映桥壳所受到的损伤同时,大幅缩短台架试验时间,证明了本文所述方法的实用价值。Based on finite element virtual bench test, a new method to acquire the reduced load spectrum, which is used to conduct accelerated fatigue bench test of driving axle housing, is brought up in this paper. After static strength analysis, fatigue life prediction, strain history acquisition and time correlated damage analysis, the reduced load spectrum for the accelerated fatigue bench test of a military special vehicle driving axle housing was acquired under the FE simulation circumstance. The bench test result shows that the reduced load spectnan can significantly shorten the test period, while the damage can be preserved as well, which proves the value of the method.

关 键 词：驱动桥壳 有限元分析 疲劳寿命 载荷谱 

分 类 号：U462.36[机械工程—车辆工程] TP391.9[交通运输工程—载运工具运用工程]