基于虚拟样机仿真的车辆主动轮疲劳寿命灵敏度分析  

Fatigue life sensitivity analysis of the vehicle capstan based on virtual prototype

作　　者：刘喆 陶凤和[2] 贾长治[2] 

机构地区：[1]68129部队 [2]军械工程学院火炮工程系

出　　处：《机械设计》2017年第5期76-80,共5页Journal of Machine Design

基　　金：国家自然科学基金资助项目(51175508);河北省自然科学基金资助项目(E2012506009)

摘　　要：主动轮是履带式车辆行走系统的重要传动机构,由于测试手段及试验方法的限制,主动轮在设计时采用静强度设计理论,无法准确反映其在不同的复杂任务工况下的动态特性,给动载荷作用下构件的寿命预测分析带来了极大困难,结果导致构件的实际寿命与设计寿命有较大差距。基于ADAMS.ATV建立履带式车辆行走系统虚拟样机,获得主动轮在某任务工况下的动态载荷。基于MSC.Fatigue软件建立了主动轮使用寿命分析模型,获得了主动轮的使用寿命,进而改变主动轮的结构参数,仿真分析得到主动轮使用寿命随其不同结构参数改变的变化规律。研究成果可以推广到相关机械可靠性领域,具有十分重要的实用意义。Capstan is an important transmission part in tracked vehicle travel system, and it is designed by the static strength theory because of the test and experimental method limitation, thus the actual dynamic characteristics of capstan cannot be embodied, and it difficult to predict fatigue life with given dynamic loads and results in wide gap between actual and designed life.The virtual running test platform is built based on ADAMS.ATV, and the dynamic load suffered by capstan in different working condition is obtained. Then the fatigue life of capstan is predicted by establishing the life analysis model with MSC.Fatigue, change the structural parameters of different capstan, the rule of capstan fatigue life with different structural parameters is acquired by simulation. Research results can widely extend to other engineering domains, have great practical significance.

关 键 词：履带式车辆 行驶仿真 主动轮 使用寿命预测 灵敏度分析 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]