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在分析装甲车辆推进系统热管理研究需求的基础上,设计了试验台架的总体方案。建立了并联管路数学模型,分析了并联管路阀门开度、阻抗、压头以及流量间的关系;建立了换热器数学模型,分析了质流量热容与温度、流量与传热之间的关系。基于GT-COOL和Simulink软件建立了台架及其控制规律联合仿真模型,仿真结果验证了数学模型理论分析的正确性,为台架变工况的控制策略提供了理论指导。
Based on the analysis of the research requirements of the thermal management of the propulsion system of armored vehicles, the overall design of the test bench is designed. The mathematical model of parallel pipeline was established, and the relationship between opening degree, impedance, pressure head and flow rate of parallel pipeline valve was analyzed. Mathematical model of heat exchanger was established and the relationship between mass flow heat capacity and temperature, flow rate and heat transfer was analyzed Relationship. Based on GT-COOL and Simulink software, the co-simulation model of bench and its control law is established. The simulation results verify the correctness of the theoretical analysis of the mathematical model and provide a theoretical guidance for the control strategy of the bench.