基于行驶仿真试验的履带车辆传动系统仿真研究  

Research on Drive System of Crawler Vehicle Based on Simulation Travel Test

作　　者：杜秀菊[1] 李玮华[1] 张庆霞[2] 

机构地区：[1]河北师范大学 [2]军械工程学院

出　　处：《工程机械》2007年第4期25-27,共3页Construction Machinery and Equipment

基　　金：国家自然科学基金(50275148)

摘　　要：履带车辆传动系统在设计时大多采用静强度设计理论,无法准确反映其在不同任务剖面下的动态特性,且由于传统测试手段及试验方法的限制,导致获得传动系统各零部件所承受的动载荷具有很大困难,使履带车辆传动系统的实际使用寿命与设计寿命有很大差距,严重影响了履带车辆使用时的可靠性。建立了基于ATV的行驶仿真试验平台,并基于行驶仿真试验建立了履带车辆传动系统仿真分析流程图,建立了履带车辆传动系统虚拟样机并对其进行模型验证,以保证仿真结果的准确性。在行驶仿真试验基础上对履带车辆传动系统虚拟样机进行动力学仿真分析,获得了某任务剖面下履带车辆传动系统输出端所承受动载荷,并以履带车辆传动系统行星架为例对其进行动力学、有限元及寿命预测分析,为下一步对传动系统零部件进行疲劳寿命预测及动态优化设计提供重要依据。Static strength theory is mostly adopted in drive system design of crawler vehicles, which can't exactly reflect the dynamic characteristics of different mission profile. The restrictions of traditional measurement and test methods result in difficulties to obtain dynamic loads on every part and component in drive system, which causes the big difference between practical operation life and design life of the drive systems and greatly influences the reliability when crawler vehicles are operated. A simulation travel test platform is established based on ATV and flow chart for simulation analysis of crawler vehicle drive system is worked out based on the simulation test. A virtual prototype of the system is set up and model verification is conducted to ensure the accuracy of simulation result. Dynamic simulation analysis to the virtual prototype of the system is performed on the basis of simulation travel test. Dynamic loads on output end of the system are obtained for a certain mission profile. Taking the planetary carrier in the system as an example, dynamic analysis and finite element analysis are conducted and its operation life is predicted, which provides an important basis for further fatigue life prediction and dynamic optimization of parts and components in the system.

关 键 词：仿真 履带车辆 传动系统 虚拟样机 

分 类 号：U469.694[机械工程—车辆工程]