中国空间科学技术2017，Vol.37Issue(3)：44-52,9.DOI:10.16708/j.cnki.1000-758X.2017.0004
二氧化碳探测仪瞬态热分析模型修正
Correction for transient thermal analysis model of Carbon Dioxide detector
摘要
Abstract
In order to accurately predict the on-orbit temperature of the Tan-Sat loading,the research for transient thermal analysis model correction under test conditions was presented. Compared the results between thermal analysis calculation and thermal balance test,temperature differences of the temperature monitors were confirmed. Parametric sensitivity analysis of carbon dioxide detector thermal analysis model was completed by the Monte Carlo method,and model parameters were divided into global sensitive,local sensitive and insensitive parameters. According to the data of thermal balanced test,the Latin hypercube sampling and simplex mixed methods were applied to correct model parameters by the classification layer by layer,and the optimal values were calculated.These values were taken into the thermal analysis model to verify the accuracy of the correction method and analyze the residual error. Correction results show that the corrected temperature difference δa is less than ±0.5℃ for all the temperature monitors, the residual error correction rates θ are greater than 80%,while most temperature differences reduce an order of magnitude after correction.These results illustrate the correction is effective and the method is reasonable and feasible.关键词
CO2探测仪/模型修正/热平衡/热分析/灵敏性分类/蒙特卡洛法/分层修正Key words
carbon dioxide detector/ model correction/ thermal balance/ thermal analysis/ sensitivity classification/ Monte Carlo method/ hierarchical correction分类
航空航天引用本文复制引用
李强,陈立恒..二氧化碳探测仪瞬态热分析模型修正[J].中国空间科学技术,2017,37(3):44-52,9.基金项目
国家"863"计划(2013AA122001) （2013AA122001）
