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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。
The driving wheel is an important transmission mechanism of the walking system of crawler vehicles. Due to the limitation of testing methods and test methods, the design principle of the static strength of the driving wheel adopts the static strength design theory, which can not accurately reflect its dynamic characteristics under different complicated task conditions. Under the dynamic load, the life expectancy analysis of components has brought great difficulties, resulting in the actual life of components and design life is a big gap. Based on ADAMS.ATV, a virtual prototype of crawler vehicle walking system was established, and the dynamic load of driving wheels under a certain working condition was obtained. Based on the MSC.Fatigue software, a service life analysis model of the driving wheel was established, the service life of the driving wheel was obtained, and the structural parameters of the driving wheel were changed. The changing rules of the service life of the driving wheel with different structural parameters were obtained through simulation analysis. Research results can be extended to the field of mechanical reliability, has very important practical significance.