航天推进技术研究院主办
[1]雷 征,刘志让,陈建华,等.高压补燃发动机Э形弹性金属密封机理研究[J].火箭推进,2014,40(06):11-15.
LEI Zheng,LIU Zhi-rang,CHEN Jian-hua,et al.Research on sealing mechanisms of Э-shaped elastic metal seal in high-pressure staged combustion rocket engine[J].Journal of Rocket Propulsion,2014,40(06):11-15.
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LEI Zheng,LIU Zhi-rang,CHEN Jian-hua,et al.Research on sealing mechanisms of Э-shaped elastic metal seal in high-pressure staged combustion rocket engine[J].Journal of Rocket Propulsion,2014,40(06):11-15.
高压补燃发动机Э形弹性金属密封机理研究
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
40
期数:
2014年06期
页码:
11-15
栏目:
研究与设计
出版日期:
2014-12-29
- Title:
- Research on sealing mechanisms of Э-shaped elastic metal seal in high-pressure staged combustion rocket engine
- 分类号:
- V434-34
- 文献标志码:
- A
- 摘要:
- Э形弹性金属密封是一种适用于大通径、低温、高压密封环境的金属密封结构，已成功应用于高压补燃液氧/煤油发动机液氧管路密封。针对100吨级高压补燃发动机中的Э形弹性金属密封，建立了其非线性有限元弹塑性分析模型，基于ABAQUS 6.10进行了仿真计算，得到了4个密封面的接触面积和接触应力随预紧载荷的变化规律，确定了各密封面形成的先后顺序。对于密封机理的研究结果表明，Э形环刚度过大是造成Э形密封装配困难的根本原因。
- Abstract:
- Э-shaped elastic metal seal is suitable for large diameter sealing joint, high pressure and low temperature environment. It has been successfully used in the LOX pipeline system of high pressure staged combustion LOX/kerosene rocket engine. The nonlinear analysis model of Э-shaped elastic metal seal in the 100 t staged high-pressure combustion rocket engine was established. By conducting the nonlinear finite element analysis with ABAQUS 6.10, the variation regularity of contact area and average contact stress on the four sealing surfaces with pre-tighten load was captured, and the forming sequence of the sealing surfaces was confirmed. The research result of sealing mechanism indicates that the excessive axial stiffness of Э-shaped ring is the ultimate reason which causes the assembly difficulty.
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相似文献/References:
[1]雷 征,刘志让,陈建华,等.矩形流道RBCC动力系统推阻特性之思考[J].火箭推进,2014,40(03):1.
LEI Zheng,LIU Zhi-rang,CHEN Jian-hua,et al.Research on elastic metal sealing technology for
high-pressure staged combustion LOX/kerosene engine[J].Journal of Rocket Propulsion,2014,40(06):1.
[2]雷 征,刘志让,陈建华,等.高压补燃液氧/煤油发动机弹性金属密封技术探讨[J].火箭推进,2014,40(03):7.
LEI Zheng,LIU Zhi-rang,CHEN Jian-hua,et al.Research on elastic metal sealing technology for high-pressure staged combustion LOX/kerosene engine[J].Journal of Rocket Propulsion,2014,40(06):7.
备注/Memo
收稿日期：2014-08-13；修回日期：2014-08-29 基金项目：国家863项目（2012AA702302） 作者简介：雷征（1988—），男，硕士研究生，研究领域为低温液体火箭发动机总体设计
更新日期/Last Update:
1900-01-01