|Table of Contents|

Research on sealing characteristics of pressure-actuated K-shaped metal sealing component(PDF)

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

Issue:
2013年06期
Page:
35-41
Research Field:
研究与设计
Publishing date:

Info

Title:
Research on sealing characteristics of pressure-actuated K-shaped metal sealing component
Author(s):
ZHAO Jian1;  TAN Yong-hua2;  CHEN Jian-hua1;  LEI Zheng1
1. Xi’an Aerospace Propulsion Institute, Xi’an 710100, China；
Keywords:
K-shaped metal seal;  nonlinear FEM;  sealing mechanism;  reuse
PACS:
V432-34
DOI:
-
Abstract:
The K-shaped metal sealing component is used frequently in the liquid oxygen pipeline system of LOX/kerosene rocket engine. Its sealing performance straightly relates with the reliability of the engine. Based on the nonlinear finite element method (FEM) and the equivalent simplification of local roughness, the sealing mechanism of self-tightened K-shaped seal component is acquired. Numerical simulations have reproduced the sealing formation mode of contact surfaces, and demonstrated the characteristics of "pressure-actuated" and reusable performance. According to the total contact area and average contact stress, the sensitivity between sealing performance and assembly moment is obtained.

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