|Table of Contents|

Research on sealing mechanisms of Э-shaped elastic metal seal in high-pressure staged combustion rocket engine(PDF)

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

Issue:
2014年06期
Page:
11-15
Research Field:
研究与设计
Publishing date:

Info

Title:
Research on sealing mechanisms of Э-shaped elastic metal seal in high-pressure staged combustion rocket engine
Author(s):
LEI Zheng1;  LIU Zhi-rang2;  CHEN Jian-hua1;  BAI Xu-dong1
1. Xi’an Aerospace Propulsion Institute, Xi’an 710100, China 2. Academy of Aerospace Propulsion Technology, Xi’an 710100, China
Keywords:
-
PACS:
V434-34
DOI:
-
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.

References:

[1]切巴耶夫斯基.高速诱导轮的汽蚀特性[J].水泵技术,1977 (3): 1-17.
[2]醒凡. 现代泵技术手册[M]. 北京: 宇航出版社, 1995.
[3]朱祖超. 低比转速高速离心泵的理论及设计应用[M]. 北京: 机械工业出版社, 2008.
[4]孙健. 低汽蚀余量的诱导轮研究[D]. 南京: 江苏大学, 2006.
[5]徐成波, 骆大章. 高速离心泵中诱导轮与离心轮的匹配关系研究[J]. 水泵技术, 1997 (3): 6-8.
[6]袁丹青, 刘吉春, 丛小青, 等. 变螺距诱导轮内流场空化数值模拟[J]. 排灌机械, 2008, 26(5): 42-45.
[7]赵瑞, 崔宝玲, 朱祖超, 等. 高速诱导轮内部流场的数值计算[J]. 浙江理工大学学报, 2010, 27(3): 412-416.
[8]刘德民, 许洪元. 离心泵诱导轮的数值模拟[J]. 水泵技术, 2008 (6): 28-32.
[9]郭维, 白东安. 超低比转速离心泵内流场计算及分析[J].火箭推进, 2007, 33(2): 26-30.
[10]YAKHOT V, ORSZAG S A. Renormalization group an- alysis of turbulence: basic theory[J]. Journal of Scientific Computing, 1986, 1 (1): 1-11.
[11]YAKHOT V, ORSZAG S A, THANGAM S, et al．Dev- elopment of turbulence models for shear flows by a double expansion technique[J]. Physics of Fluids A, 1992, 4 (7): 1510-1520.

Memo

Memo:
-
Last Update: 1900-01-01