Stiffness Calculation Method and Stiffness Characteristic Analysis of Bolted Connectors

At present, few scholars have studied the effect of surface roughness on assembly stiffness. The influence of the joint surface stiffness on the overall stiffness is neglected. In this paper, a new method for calculating the stiffness of bolted joints is presented. The effect of joint surface stiffn...

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Bibliographic Details
Published inMathematical problems in engineering Vol. 2019; no. 2019; pp. 1 - 11
Main Authors Cui, Fang-yuan, Li, Yan, Hua, Deng-xin, Lu, Shi-kun, Li, Pengyang
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Publishing Corporation 2019
Hindawi
Hindawi Limited
Subjects
Bolted joints
Connectors
Cylinders
Engineering
Finite element analysis
Fractals
Mechanical engineering
Stiffness
Studies
Surface roughness
Surface roughness effects
Theory
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Summary:At present, few scholars have studied the effect of surface roughness on assembly stiffness. The influence of the joint surface stiffness on the overall stiffness is neglected. In this paper, a new method for calculating the stiffness of bolted joints is presented. The effect of joint surface stiffness on the overall stiffness is considered. Firstly, the relationship between load and displacement between cylinder and cylinder (including the joint surface with certain roughness) is studied, and the stiffness characteristic expression of the joint surface is obtained; the results are compared with the traditional stiffness calculation theory, and then, the influence of bolt connection surface on bolt connection is studied and compared with the stiffness calculation results of traditional bolt connection. The results show that the theoretical model presented in this paper is more practical.
ISSN:1024-123X
1563-5147
DOI:10.1155/2019/6206092