【摘要】 针对我国自主研发的35 MPa压力体制的2H/2E架构民机液压能源系统,结合液压泵、液压用户、液压管路和自增压油箱等关键液压元件的生热和散热机制,在AMESim软件中建立液压元件热分析模型。在此基础上,建立整套液压能源系统热模型,分析它在正常工况下的热性能,得到正常工况热天飞行、热天低空盘旋和冷天飞行时的热仿真分析结果。对比仿真结果和系统温度要求,结果表明:仿真模型精度较高且建模方法具有普适性,可用于民机液压能源系统设计之初的方案论证、优化等工作。更多还原

【Abstract】 Aiming at the 2 H/2 E civil aircraft hydraulic energy system of 35 MPa pressure system independently developed by China, the thermal analysis model of hydraulic components was established in AMESim software based on the heat generation and heat dissipation mechanism of key hydraulic components such as hydraulic pump, hydraulic user, hydraulic pipelines and self-pressurized oil tanks. On this basis, a complete set of hydraulic energy system thermal model was established, and its thermal performance was analyzed under normal operating conditions, and the thermal simulation analysis results of normal operating conditions during hot day flight, hot day hovering at low altitude and cold day flight were obtained. The simulation results were compared with the system temperature requirements. The results show that the simulation model has high accuracy and the modeling method is universal, which can be used for the demonstration and optimization of the civil aircraft hydraulic energy system at the beginning of the design.更多还原