石英灯辐射加热试验热流分布优化研究

摘要

石英灯辐射加热是在地面上模拟飞行中施加在飞行器表面热载荷的一种加热方式.由于石英灯加热元件的分布不同导致试验件表面不同区域获得的热流密度与要求施加的热载荷有所差异,这样可能会导致"过试验"或"欠试验"现象出现,从而降低了试验数据的可用性,增加了结构设计的风险.本文基于蒙特卡罗方法,对单一石英灯加热器内部热流分布进行了数值模拟仿真,为更合理优化加热器内部热场分布提供理论参考,提高热试验质量.%The quartz radiation heating is a way to simulate surface heating load of aircrafts. As distribution of quartz heaters is different, it can cause heating flux of test surface different from real condition and result in over test or insufficient test. Either over test or insufficient test can make test data unusable and result in risk of structure design. In this paper, the Monte-Carlo Method was used to simulate heat flux distribution of quartz heaters, and gave some experience to optimize the heat flux distribution of heaters to improve test quality.