坦克装甲车辆冷却性能的集成化预测模型

针对坦克装甲车辆的冷却过程涉及多物理场作用、多个零部件与多种流体参与的特点，基于整体和综合的角度，提出了冷却性能的集成化预测思路。建立了集成化预测模型，发动机燃烧产热和部件摩擦产热作为热源，考虑了基于部件集总质量的热节点与冷却液、润滑油、动力舱空气、发动机进气、燃气、废气之间的传热，冷却液、润滑油和动力舱空气的流动。通过边界耦合与内部参数耦合相结合、局部收敛与整体收敛相结合的算法进行模型的求解。预测实例显示，这种模型可以实现在各种外界环境温度和不同运行工况的坦克装甲车辆冷却性能的集成化预测，具有较好的预测精度。

An Integrative Model for Predicting Cooling Performance of Tanks

Aiming at the fact that cooling process of tanks is related to various physical actions of its solid parts or fluids, an integrative prediction conception has been presented for cooling performance of tanks from overall and comprehensive views. The integrative prediction model has been established in which engine combustion heat and part friction heat act as heat sources. Solid parts in power chain have been divided into heat nodes based on the lump mass. Heat transfers between nodes and coolant, nodes and lubricant, nodes and engine compartment air, nodes and engine intake air, nodes and engine combustion gas, nodes and engine exhaust gas, one node and other nodes have been taken into ac- count. Coolant flow, lubricant flow and engine compartment air flow have also been taken into consideration. The prediction model can be resolved by using algorithms combined with boundary/inner parameter coupling and local/unitary convergency. Example calculation shows that the prediction model can implement integrative prediction of cooling performance for tanks and armoured vehicles at different environment temperatures and running conditions with better precision.