| 再入航天器陶瓷拐角环防热计算与结构适用性分析 |
| |
| 引用本文： | 李伟杰,刘峰,董彦芝,张幸红.再入航天器陶瓷拐角环防热计算与结构适用性分析[J].航天返回与遥感,2012,33(1):8-15. |
| |
| 作者姓名： | 李伟杰 刘峰 董彦芝 张幸红 |
| |
| 作者单位： | 1. 北京空间飞行器总体设计部,北京,100094
2. 哈尔滨工业大学复合材料研究所,哈尔滨,150001 |
| |
| 摘 要： | 文章基于近地轨道及探月返回再入热环境,应用超高温陶瓷到再入航天器的典型防热结构,计算分析了再入过程中的防热结构温度场。利用温度场计算结果,再结合超高温陶瓷抗烧蚀性能以及结构设计与工艺性分析,就超高温陶瓷作为再入航天器防热结构的适用性进行了深入探讨。结果表明,由于超高温陶瓷的优良耐高温及耐烧蚀性能,在近地轨道及探月返回再入航天器防热结构上具有良好的应用前景。
|
| 关 键 词： | 返回再入 超高温陶瓷 防热结构 温度场 适用性 航天器 |
Thermal Calculation and Structural Applicability Analysis of Ceramic Aft Ring Applied on Reentry Spacecraft |
| |
| LI Weijie,LIU Feng,DONG Yanzhi,ZHANG Xinghong.Thermal Calculation and Structural Applicability Analysis of Ceramic Aft Ring Applied on Reentry Spacecraft[J].Spacecraft Recovery & Remote Sensing,2012,33(1):8-15. |
| |
| Authors: | LI Weijie LIU Feng DONG Yanzhi ZHANG Xinghong |
| |
| Institution: | 2 (1 Beijing Institute of Spacecraft System Engineering, Beijing 100094,China) (2 Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China) |
| |
| Abstract: | Based on the thermal conditions during reentry from low-earth-orbit and lunar orbit,this paper presents the temperature fields of the ultra-high-temperature ceramics （UHTCs）as the typical thermal protection structure applied on the reentry spacecraft. Combined with the investigation of the ablation properties, the structure design as well as the processing technology,a further discussion is conducted in terms of the applicability of UHTCs on the reentry spacecraft. The results show that UHTCs could provide a favorable prospect to resist reentry condition from the low-earth-orbit and the lunar orbit due to their optimal thermal properties. |
| |
| Keywords: | reentry ultra-high-temperature ceramics thermal protection structure temperature fields applicability spacecraft |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
