飞机座舱盖热疲劳试验系统的热经济分析

 依据热经济分析理论 ,并结合对飞机座舱盖热疲劳试验系统的运行模拟 ,找出了系统的关键能耗元件 ,针对它的热惯性是造成系统潜在高耗能的主要原因 ,提出了在关键能耗元件加隔热层的改进方案。对某型号座舱盖 100飞行小时试验 ,模拟计算结果的比较表明 ,改进方案能使试验能耗下降 37%。

THERMOECONOMIC ANALYSIS OF THE TESTING SYSTEM FOR THE THERMAL FATIGUE OF AIRCRAFT CANOPY

The testing system for the thermal fatigue of a fighter plane canopy is made up of closed pipes, and is used to test the performance and flight lifetime of canopy. The canopy load of high and low temperatures in experiment is achieved by energy exchange with rapidly heating up or cooling down airflow; thus, the system consumes much energy. To solve the problem, the key energy consuming component has been found in light of the thermoeconomic principle and the analysis of numerical simulation for the system's operation. For the thermal inertia of the key energy consuming component leads much energy spending of the system's operation, it is proposed to add a layer of heat insulation on the surface of the key energy consuming component. The numerical simulation for the experiment of 100 flight hours of a certain canopy shows that the measure can reduce 37% energy spending of the system's operation.