航天器工程2013，Vol.22Issue(3)：113-118,6.DOI:10.3969/j.issn.1673-8748.2013.03.019
再入航天器防热层/金属结构热匹配评价方法研究
Investigation of Thermal-match Evaluation Methods for TPS/MS Applied on Reentry Spacecraft
摘要
Abstract
This paper introduces three thermal-match evaluation methods of TPS (thermal protection shield)/MS (metal structure) under in-orbit temperature alternation condition,including temperature alternation test,thermal stress theoretical calculation and FEA (finite element analysis).In view of the engineering experience,actual application is further presented according to the three methods for the evaluation of thermal match of TPS/MS which shows the respective characteristics.Temperature alternation test can qualitatively investigate the influence of temperature condition and bond thickness on the structure thermal-match property.Thermal stress theoretical calculation can quantify the data of thermal stress to some extent.FEA can provide the quantification results,including thermal stress and deformation at any time and position,that show great application dominance.Based on the comparison and analysis,suggestion is indicated in terms of combination of temperature alternation test and FEA to achieve the exact evaluation of thermal match of TPS/MS and verify the validity of thermal protection structure design.关键词
再入航天器/防热层/热匹配评价/温度交变环境Key words
reentry spacecraft / TPS/ evaluation for thermal-match/ temperature alternation condition分类
航空航天引用本文复制引用
李伟杰,刘峰,董彦芝,李小龙..再入航天器防热层/金属结构热匹配评价方法研究[J].航天器工程,2013,22(3):113-118,6.基金项目
国家重大科技专项工程 （）
