尖前缘一体化高温热管结构设计与分析  

DESIGN AND STRUCTURAL ANALYSIS OF SHARP LEADING EDGE INTEGRATED WITH HEAT PIPE

作　　者：韩海涛[1] 邓代英[1] 陈思员[1] 艾邦成[1] 郑金鑫[1] 

机构地区：[1]中国航天空气动力技术研究院,北京100074

出　　处：《机械强度》2013年第1期48-52,共5页Journal of Mechanical Strength

摘　　要：一体化高温热管是针对新型高超声速飞行器前缘热防护需求提出的新型非烧蚀防热技术。但其在高温工作状态下具有较高的内部蒸汽压力,高温时材料力学性能会出现显著下降,且结构刚度和强度降低,对高温热管结构设计提出很高的要求。因此针对尖前缘一体化高温热管进行内部结构设计与分析,给出改变壁板厚度、添加加强肋等结构增强方式,并建立系列计算模型,分析得到壁板厚度、加强肋增强范围等结构参数变化对结构刚度、强度性能的影响规律,同时综合考虑热防护性能和结构完整性,优选出合理的设计参数,为尖前缘一体化高温热管的工程实现奠定基础。The integral sharp leading heat pipe was proposed for non-ablating thermal protection of hypersonic vehicles. However, the heat pipe endures high saturated steam pressure at high temperature, and the structural stiffness and strength will dramatically decrease as the mechanical performance of the material decreased under the condition, leading to more difficulty for structural design of the integral sharp leading heat pipe. Series models were established to evaluate the influences of wall thickness variation and stiffeners to the rigidity and strength of the integrated heat pipe. Considering thermal protecting ability and structural integrity, the heat pipe was optimized. The analysis provides feasibility of the engineering application for the integral sharp leading heat pipe.

关 键 词：疏导式热防护 尖前缘 高温热管 结构分析 

分 类 号：O343.6[理学—固体力学] V414.1[理学—力学]