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[1]徐云飞,刘丽,徐学军,等.液体火箭发动机涡轮泵密封组件静力学特性[J].火箭推进,2017,43(03):17-21.
　XU Yunfei,LIU Li,et al.Static mechanical characteristics of turbopump seal assembly in liquid rocket engine[J].Journal of Rocket Propulsion,2017,43(03):17-21.
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液体火箭发动机涡轮泵密封组件静力学特性

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 43 期数: 2017年03期 页码: 17-21 栏目: 研究与设计 出版日期: 2017-08-01
Title:
Static mechanical characteristics of turbopump seal assembly in liquid rocket engine
作者:
徐云飞1; 2; 刘丽1; 徐学军1; 2; 李锋1; 2; 黄道琼1; 2; 段捷3
1. 西安航天动力研究所，陕西 西安 710100； 2. 液体火箭发动机技术国防科技重点实验室，陕西 西安 710100； 3. 航天推进技术研究院，陕西 西安 710100
Author(s):
XU Yunfei1;  2;  LIU Li1;  XU Xuejun1;  2;  LI Feng1;  2;  HUANG Daoqiong1;  2;  DUAN Jie3
1. Xi’an Aerospace Propulsion Institute, Xi’an 710100, China; 2. National Key Laboratory of Science and Technology on Liquid Rocket Engine, Xi’an 710100, China; 3. Academy of Aerospace Propulsion Technology, Xi’an 710100, China
关键词:
液体火箭发动机; 密封组件; 静力学特性; 密封压力分布; 有限元法
Keywords:
liquid rocket engine;  seal assembly;  static mechanical characteristic;  sealing pressure distribution;  finite element method
分类号:
V434.21-34
文献标志码:
A
摘要:
为了提高液体火箭发动机涡轮泵端面密封的气检合格率，开展了密封组件的静力学特性分析。采用有限元法建立了密封端面接触分析模型，针对石墨环装配过盈量、弹簧刚度偏差与气检压力3个方面进行了仿真计算， 获得了端面变形量和密封压力分布的变化规律。计算结果表明：在0.13 mm过盈量下，石墨环上端面高度差为7.2 μm；弹簧刚度偏差量变化引起的动静环端面压力分布最大差值约0.1 MPa；在气检过程中密封端面呈环形的压力分布。
Abstract:
To rise the checking qualification rate of seal in turbopump end face in liquid rocket engine, the static mechanical characteristics of seal assembly is analyzed. The contact analysis model of seal assembly was set up with FEM. The simulating calculation for fit tolerance of graphite ring, bias of spring stiffness and checking pressure was performed to get the variation law of end-face deformation and sealing pressure distribution. The result indicates that the end face height difference of graphite ring upper surface is 7.2 μm at fit tolerance of 0.13 mm, the biggest different value of pressure distribution on end faces of moving ring and static ring is 0.1 MPa, which is caused by bias of spring stiffness, and the pressure distribution of sealing end-face appears in circular shape in the process of sealing checking.

参考文献/References:

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备注/Memo

收稿日期：2016-10-14；修回日期：2017-01-20 基金项目：国家自然科学基金（11502186，51506157） 作者简介：徐云飞（1984—），男，硕士，工程师，研究领域为液体火箭发动机技术

更新日期/Last Update: 1900-01-01