履带车辆电传动系统减速机构热特性

为进一步提升履带车辆的运行稳定性，采用一维与三维相结合的方法开展履带车辆电传动系统减速机构热特性研究。利用一维软件快速计算减速机构各润滑冷却孔口出口压力和流量，以及功率损失和热量传递路径，作为三维软件的仿真边界条件；利用三维软件仿真润滑流场和温度场，得到减速机构温度分布情况。分析履带车辆电传动系统机械构件热特性研究流程，研究过程充分显示了一维与三维软件相结合的仿真方法在齿轮热特性分析中的有效性，提升了仿真结果精度，缩短了仿真时间，为履带车辆电传动系统热特性研究提供了技术参考。

On Thermal Property of Reduction Gear for Electrical Transmission System of Tracked Vehicle

For improving the running stability of tracked vehicles，the thermal property of reduction gear for electrical transmission system of tracked vehicle is studied by 1D and 3D methods. 1D software is used to calculate the outlet pressure and flow rate of each lubrication and cooling orifice of reduction gear as well as the power loss and heat transfer path of reduction gear. The lubrication flow field and temperature field are simulated to obtain the temperature distribution of reduction gear by using 3D software.The research process of thermal properties of mechanical components in electric drive system of tracked vehicle is explored. The research process shows the advantages of 1D/3D software combined simulation method for the analysis of gear thermal property. It improves the accuracy of simulation results and shortens the simulation time.