收稿日期:
2022-11-23
修回日期:
2022-12-07
接受日期:
2023-02-27
出版日期:
2023-12-15
发布日期:
2023-03-17
通讯作者:
郭万林
E-mail:wlguo@nuaa.edu.cn
基金资助:
Mengqi GU1, Jiacai ZHU2, Wanlin GUO1,2(), Song XUE2
Received:
2022-11-23
Revised:
2022-12-07
Accepted:
2023-02-27
Online:
2023-12-15
Published:
2023-03-17
Contact:
Wanlin GUO
E-mail:wlguo@nuaa.edu.cn
Supported by:
摘要:
可重复使用火箭是当今世界运载火箭技术发展的重要方向。传统的一次性运载火箭只需要完成单次发射任务,通常使用高静强度安全系数来保证其结构可靠性。对于需要尽可能多地执行发射任务以提高经济效益的可重复使用运载火箭,结构疲劳耐久性与可靠性是静强度难以覆盖的。抗疲劳断裂性能与可靠性是高性能可重复使用运载火箭结构设计的基本问题。分析了火箭、尤其是发动机结构的载荷特点,提出环境因素作用下的振动疲劳是运载火箭发动机结构的主要失效形式;分析了运载火箭中常见的焊接结构与金属增材制造结构的疲劳问题,总结了运载火箭结构耐久性和可靠性分析的研究现状,对可重复使用运载火箭的耐久性与可靠性设计进行了展望。
中图分类号:
顾孟奇, 朱家才, 郭万林, 薛松. 可重复使用运载火箭结构疲劳耐久性与可靠性展望[J]. 航空学报, 2023, 44(23): 628299-628299.
Mengqi GU, Jiacai ZHU, Wanlin GUO, Song XUE. Prospects for fatigue durability and reliability of reusable launch vehicle structures[J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(23): 628299-628299.
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