高速履带车辆主动轮动态应力仿真分析研究  

Analysis and Simulation on Dynamic Stress of Tracked Vehicle Sprocket

作　　者：田政[1] 陈兵[1] 尹忠俊[1] 王文瑞[1] 

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《计算机仿真》2011年第11期328-331,412,共5页Computer Simulation

摘　　要：为研究高速履带车辆主动轮的动态应力强度优化问题,由于车辆在运动中承受交变载荷,主动轮受力较强。为改进结构强度,提出建立履带车辆多体动力学模型和车"履带板—主动轮"的单齿、多齿啮合模型以及刚柔耦合,对务工况设定进行了动态应力仿真。结果表明,履带车辆主动轮齿圈齿根处以及固定螺栓孔壁应力较大且在轮齿边缘部位存在应力集中。通过仿真,结果证明轮齿的受力不会对轮齿的应力产生影响,可为高速履带车辆行驶系统的结构设计及优化提供依据。In order to research the dynamic stress of the tracked vehicle sprocket,this paper established a high-speed tracked vehicle dynamics model,in which the time loads of sprocket was simulated during the vehicle is running at 60km/h on the D class road.We established the ＂trackboard-sprocket＂ models of the single tooth in mesh and multiple teeth in mesh.The dynamic stress of the sprocket＇s gear ring was acquired by analysis.Simulation results show that the stress of tracked vehicle sprocket＇s gear root and the fixed gear bolt hole are larger,and the stress concentration is observed at the edge of the teeth.The other gear tooth＇s forces only increase the stress of the fixed gear bolt hole compared with the results.The simulation results provide the calculation basis for the optimization of the high-speed tracked vehicle system.

关 键 词：履带车辆 主动轮 啮合模型 刚柔耦合模型 动应力 

分 类 号：TB24[一般工业技术—工程设计测绘]