机载雷达罩热载荷仿真分析关键技术研究  

Critical Technologies of Simulation Analysis on Thermal-Loads of the Radome in Flight

作　　者：张娟[1] 田中强[1] 高行山[1] 岳珠峰[1] 

机构地区：[1]西北工业大学工程力学系,陕西西安710072

出　　处：《飞机设计》2010年第1期31-33,37,共4页Aircraft Design

摘　　要：研究了机载雷达罩热载荷仿真分析的3个关键技术,一是雷达罩及天线的CAD建模技术,并应用Fluent计算罩体外表面温度;二是建立雷达罩的多腔体热辐射模型,以得到雷达罩内表面的温度分布;三是温度插值技术,用以将流场计算得到的温度值插值到对应的热应力分析模型上。Three critical technologies of simulation analysis on thermal-loads of radome in flight are selescted to study in this paper. Section 2 analyzes the first critical technology, which is modeling of the radome and the antena. The computational fluid dynamics software FLUENT is used to analyse the radome, so as to achieve the temperature distribution of its outer surface. Section 3 analyzes the second critical technology, which is to estiblish the multi-cavity thermal radiation model of the radome in order to get the temperature distribution of the inner surface. A kind of interpolation method, which is the third critical technology, is used to transfer the temperature of flow field and the space heat radiation to the corresponding thermal-stress analysis model of radome.

关 键 词：雷达罩 建模 热辐射 多腔体模型 插值 

分 类 号：V232[航空宇航科学与技术—航空宇航推进理论与工程]