航天推进技术研究院主办
[1]栾叶君,孙纪国,田昌义,等.氢氧推力室再生冷却内壁故障分析[J].火箭推进,2006,32(05):17-21.
Luan Yejun,Sun Jiguo,Tian Changyi,et al.Failure analysis on regeneratively cooled wall of a hydrogen-oxygen thrust chamber[J].Journal of Rocket Propulsion,2006,32(05):17-21.
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Luan Yejun,Sun Jiguo,Tian Changyi,et al.Failure analysis on regeneratively cooled wall of a hydrogen-oxygen thrust chamber[J].Journal of Rocket Propulsion,2006,32(05):17-21.
氢氧推力室再生冷却内壁故障分析
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
32
期数:
2006年05期
页码:
17-21
栏目:
出版日期:
2006-10-30
- Title:
- Failure analysis on regeneratively cooled wall of a hydrogen-oxygen thrust chamber
- 分类号:
- V463.6
- 文献标志码:
- A
- 摘要:
- 对某氢氧火箭发动机在热试车后推力室再生冷却通道内壁产生裂纹的故障建立了理论分析模型,并进行了温度场与应力场的耦合计算分析。分析认为,推力室内壁在连续的发动机热试车中出现故障的机理为较大的热载荷和机械载荷的组合促使推力室内壁的组合应力超过当地的屈服极限,产生较大的塑性变形所致。采用改善冷却通道的结构形式、燃烧室内壁采用适当厚度的隔热镀层、降低推力室内壁应力比R等措施可以提高再生冷却推力室的热循环寿命。
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更新日期/Last Update:
1900-01-01