Strength Analysis of SRM Flexible Joint under Tensile Load

LIU Yong-qiong; YOU Jun-feng

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Strength Analysis of SRM Flexible Joint under Tensile Load

更新时间：2026-07-07

- Strength Analysis of SRM Flexible Joint under Tensile Load
- Vol. 18, Issue 2, (2003)
- 作者机构：
  
  航天科技集团公司四院四十一所,陕西,西安,710025
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2003
- 稿件说明：
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LIU Yong-qiong, YOU Jun-feng. Strength Analysis of SRM Flexible Joint under Tensile Load[J]. 2003, 18(2).
DOI：

LIU Yong-qiong, YOU Jun-feng. Strength Analysis of SRM Flexible Joint under Tensile Load[J]. 2003, 18(2). DOI：

摘要

柔性接头是固体火箭发动机摆动喷管的执行部件

由若干同心的环状球体的弹性件、增强件以及前后法兰相互交替地粘接在一起而成

采用轴对称有限元法对柔性接头在拉伸载荷下进行了强度分析

得到了在0.5MPa弹射压强的拉伸载荷作用下柔性接头应力分布

由此计算弹性件与增强件之间界面最大拉应力及层间剪应力分别为2.34MPa和0.28MPa

界面粘接强度满足使用要求。

Abstract

The solid rocket motor (SRM) flexible joint is the main part of the flexible bearing nozzle that allows nozzle to deflect in any given direction for motor thrust vector control.It consists of elastomer rings

reinforcement rings

front and rear flanges which are concentric spherical sections bonded.The finite element method is used to analyze the strength of flexible joint under tensile load.The stress field of flexible joint under 05 MPa distributing tensile load is acquired.Because the maximal tensile stress and layer shear stress at the interface between elastomers and reinforcement rings are 234 MPa and 028 MPa respectively

thus the strength of bonded interface can satisfy the design need.

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YANG Jing-xian

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Junwei LI

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Related Institution

School of Astronautics, Beijing University of Aeronautics and Astronautics

Shanghai Xinli Power Equipment Institute

School of Aerospace Engineering，Beijing Institute of Technology

College of Engineering Science and Technology，Shanghai Ocean University

The 41st Institute of the Sixth Academy of China Aerospace;Science and Industry Corporation Limited

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