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球窝喷管接触应力及摆动力矩计算
引用本文:尤军锋,张永敬,常新龙.球窝喷管接触应力及摆动力矩计算[J].固体火箭技术,2001,24(4):20-24.
作者姓名:尤军锋  张永敬  常新龙
作者单位:1. 中国航天科技集团公司四院四十一所,
2. 第二炮兵工程学院201室,
摘    要:用有限元法对球窝喷管阳球体、承力球窝法兰进行了应力-应变分析,采用间隙元计算了球窝喷管阴阳球体间的接触应力,求出了其分界面法线方向的压力;在此基础上,推导了球窝喷管摆动摩擦力矩的计算公式,计算了球窝喷管的摆动力矩。

关 键 词:固体火箭发动机  推力向量控制装置  球窝喷管  接触应力  摆动力矩  有限元法  计算方法
文章编号:1006-2793(2001)04-0020-05
修稿时间:2000年11月30

Calculation of the contact stress and deflection torgue of ball-socket nozzle
YOU Jun feng,ZHANG Yong jing,CHANG Xin long//The st Institute of the Fourth Academy of CASC,Xi'an ,China,No. office,The Second Artillery Engineering College,Xi'an ,China.Calculation of the contact stress and deflection torgue of ball-socket nozzle[J].Journal of Solid Rocket Technology,2001,24(4):20-24.
Authors:YOU Jun feng  ZHANG Yong jing  CHANG Xin long//The st Institute of the Fourth Academy of CASC  Xi'an  China  No office  The Second Artillery Engineering College  Xi'an  China
Institution:YOU Jun feng,ZHANG Yong jing,CHANG Xin long//The 41st Institute of the Fourth Academy of CASC,Xi'an 710025,China,No.201 office,The Second Artillery Engineering College,Xi'an 710025,China)
Abstract:Stress strain for positive sphere body and load carrying socket flange is analyzed by means of finite element method (FEM), and calculation of the contact stress and normal stress at the interface between negative and positive sphere bodies of ball socket nozzle by using gap elements are presented. On the basis of analysis and calculation, calculating formulation of deflection torque of ball socket nozzle is derived and calculation of its deflection torque is made.
Keywords:ball  socket  nozzle  contact  stress  pendulous  moment  +  finite  element  method  
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