航天器环境工程2025，Vol.42Issue(6)：619-629,11.DOI:10.12126/see.2025101
基于ABAQUS的密封舱内热环境仿真与试验研究
ABAQUS-based simulation and experimental study of the thermal environment in a sealed spacecraft cabin
摘要
Abstract
To address coupled heat transfer mechanisms in sealed cabins under high-altitude and low-pressure conditions,the effect of a high-temperature heat source on heat-sensitive components inside a spacecraft cabin was investigated.A unified multiphysics thermal model that incorporates heat conduction,thermal radiation,air conduction,and natural convection was established in ABAQUS and validated against low-pressure experiments.The three models showed consistent temperature profiles,with a maximum discrepancy among them of less than 15%.The peak temperature of the heat-sensitive material ranged from 89.2℃to 102.3℃,meeting the safety requirement.Under low-pressure conditions,the conduction-radiation coupled model achieved the best agreement with the test data,with only 7%to 11%deviation,and its predictions fully encompassed the measured temperature rise.Sensitivity analysis revealed that the thermal conductivity of the component shell was the dominant parameter affecting temperature,whereas the specific heat capacity had negligible influence.These results confirm the accuracy and engineering applicability of the ABAQUS-based model in low-pressure environments and provide an efficient method for thermal safety assessment of spacecraft with high packing densities.关键词
航天器密封舱/舱内热环境/热传导/热辐射/ABAQUS/仿真分析/低气压环境试验Key words
sealed spacecraft cabin/inner-cabin thermal environment/heat transfer/thermal radiation/ABAQUS/simulation analysis/low-pressure test分类
航空航天引用本文复制引用
王加攀,许俊伟,王晓鹏,董传瑞,夏艳..基于ABAQUS的密封舱内热环境仿真与试验研究[J].航天器环境工程,2025,42(6):619-629,11.基金项目
国家自然科学基金联合基金项目(编号:U20B2028) （编号:U20B2028）
