Research on Design Method of Machining Process Convex Based on Stiff Reinforcement

LUO Jinwei; YI Yuan; QIU Shiguang; LIU Yuanji

doi:10.16080/j.issn1671-833x.2020.04.082

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Research on Design Method of Machining Process Convex Based on Stiff Reinforcement

更新时间：2026-04-17

- Research on Design Method of Machining Process Convex Based on Stiff Reinforcement
- Aeronautical Manufacturing Technology Vol. 63, Issue 4, Pages: 82-87(2020)
- 作者机构：
  
  航空工业成都飞机工业（集团）有限责任公司,成都,610092
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2020.04.082
  CLC：
- Published：2020
- 稿件说明：
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骆金威，易元，邱世广，刘元吉. 基于刚度补强的机加工艺凸台设计方法研究[J]. 航空制造技术, 2020, 63(4): 82-87.

LUO Jinwei, YI Yuan, QIU Shiguang, LIU Yuanji. Research on Design Method of Machining Process Convex Based on Stiff Reinforcement. Aeronautical Manufacturing Technology, 2020, 63(4): 82-87.
骆金威，易元，邱世广，刘元吉. 基于刚度补强的机加工艺凸台设计方法研究[J]. 航空制造技术, 2020, 63(4): 82-87. DOI： 10.16080/j.issn1671-833x.2020.04.082.

LUO Jinwei, YI Yuan, QIU Shiguang, LIU Yuanji. Research on Design Method of Machining Process Convex Based on Stiff Reinforcement. Aeronautical Manufacturing Technology, 2020, 63(4): 82-87. DOI： 10.16080/j.issn1671-833x.2020.04.082.

摘要

以梁弯曲变形力学模型为基础，建立了包含工艺凸台的单一开敞型矩形槽腔腹板刚度计算方法的数学模型，推导了开敞型矩形槽腔腹板连接工艺凸台时槽腔中心位置及槽口中心的刚度计算表达式。在此基础上，采用数值计算的方法分析了工艺凸台对槽几何中心位置及槽口中心刚度补强的效果，以及工艺凸台的尺寸对刚度补强的效果。计算结果表明，当在开口槽的槽口中心设置工艺凸台时，槽口边缘的补强刚度与工艺凸台的宽度尺寸近似线性关系，槽口边缘的补强刚度对凸台长度尺寸非常敏感，随着凸台长度尺寸的减小，凸台对槽口边缘的刚度补强效应非常显著，工艺凸台对腹板几何中心的刚度增强作用几乎可以忽略不计。

Abstract

Based on the mechanical model of bending deformation of the beam

a mathematical model for calculating the stiffness of the ventral plate of a single open rectangular groove cavity including a process convex platform is established. On the basis of this

the numerical calculation method is used to analyze the effect of the process convex table on the geometric center position of the groove and the stiffness of the groove center

and the effect of the size of the process convex table on the stiffness reinforcement. The calculation results show that when a process convex platform is set up in the center of the slot of the opening slot

the reinforcement stiffness of the groove edge is approximately linear with the width dimension of the process convex platform

and the reinforcement stiffness of the groove edge is very sensitive to the length size of the convex platform. With the reduction of the length of the convex platform

the stiffness reinforcement effect of the convex platform on the edge of the groove is very significant

and the stiffness enhancement effect of the convex platform on the geometric center of the ventral plate is almost negligible.

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