有限元法在光学侧窗热防护设计中的应用  

FEM analysis on thermal protection design of optical window

作　　者：史晓鸣[1,2] 杨炳渊 唐国安[2] 

机构地区：[1]上海机电工程研究所,上海200233 [2]复旦大学力学与工程科学系,上海200433

出　　处：《强度与环境》2010年第1期8-15,共8页Structure & Environment Engineering

摘　　要：光学侧窗热环境极为严酷,可采用液体对流内冷却技术对光学侧窗进行热防护。以有限元法对光学侧窗温度场进行了分析研究,研究结果表明:该方法计算精度可靠;液体对流内冷却技术能有效起到降温的作用。同时还定量的给出了冷却液用量对结构温度场的影响,为设计的经济可行性提供了保障。With the adverse thermal environment of optical window, thermal protection of optical window by the internal coolant convection is applied. In this paper, the temperature field of optical window is calculated by FEM. The results show that： computation accuracy of the method is reliable and internal coolant convection is effective on cooldown. The effect of coolant consumption on the temperature field is also given in the paper, this could be a reference standard of economical design.

关 键 词：光学侧窗 温度 数值算法 热防护 

分 类 号：V434.14[航空宇航科学与技术—航空宇航推进理论与工程]