|Table of Contents|

Reliability improvement of fixed connection structure of gas generator(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2014年06期
Page:
27-34
Research Field:
研究与设计
Publishing date:

Info

Title:
Reliability improvement of fixed connection structure of gas generator
Author(s):
QIN Xin-hua1;  YE Li-hua1;  ZHOU Sai-sai1;  HE Zhan-xue2
1. Xi’an Aerospace Propulsion Institute, Xi’an 710100, China; 2. Xi’an Space Engine Factory, Xi’an 710100, China
Keywords:
liquid rocket engine;  gas generator;  fixed connection structure;  im
PACS:
V434-34
DOI:
-
Abstract:
To meet the long-term storage and working reliably requirements of liquid rocket engine gas generator fixed connection structure under high temperature environment for a long time, an improved design scheme under the prerequisite condition that the original fixed connection structure is not changed is presented in this paper. The acid-resistant stainless steel and high temperature alloys are used to replace the original plain carbon steel materials, and the new welding procedure is adopted in the new scheme. In order to verify the intensity and dynamic characteristic of the new clamps, the modal analysis, dynamic stress-strain theoretical calculation, strength damage experiment and vibration test were also performed. The new design scheme was verified in the ground hot commissioning and flight test. The results indicate that the new clamp has improved the reliability of the connection structure and satisfied the new use requirements of liquid rocket engine completely.

References:

[1]颜鸣皋. 刘伯操.工程材料实用手册[M]. 2版. 北京: 中国标准出版社, 2001.
[2]夏有为, 李秀治. 机械工程师手册[M]. 3版. 北京: 机械工业出版社, 2012.
[3]徐灏, 邱宣怀. 机械设计手册[M]. 北京: 机械工业出版社, 1991.
[4]闻邦椿. 张义民. 机械设计手册[M]. 5版. 北京: 机械工业出版社, 2010.
[5]单辉祖. 材料力学教程[M]. 北京: 国防工业出版社, 1982.
[6]朱宁昌. 液体火箭发动机设计（上）[M]. 北京: 宇航出版社, 1994.
[7]刘国球. 液体火箭发动机原理[M]. 北京: 宇航出版社, 1993.
[8]洪延姬, 金星. 先进航天推进技术[M]. 北京: 国防工业出版社, 2012.
[9]邓明, 金业壮. 航空发动机故障诊断[M]. 北京: 航空航天大学出版社, 2012.
[10]周正伐. 可靠性工程基础[M]. 北京: 宇航出版社, 2009.
[11]杨炳渊. 航天技术导论[M]. 北京: 宇航出版社, 2009.
[12]刘文延. 结构可靠性设计手册[M]. 北京: 国防工业出版社, 2008.

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