Bolt looseness test analysis method and system

The invention discloses a bolt looseness test analysis method. The method comprises the following steps: acquiring surface topography parameters of a pressure-bearing surface of a bolt connection structure; fractal parameters are calculated according to the obtained surface topography parameters of...

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Bibliographic Details
Main Authors LIU ZHIFENG, ZHANG CAIXIA, YE MINGXIN, LI YING, ZHAO YONGSHENG, HE JINLIN
Format Patent
LanguageChinese
English
Published 23.06.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention discloses a bolt looseness test analysis method. The method comprises the following steps: acquiring surface topography parameters of a pressure-bearing surface of a bolt connection structure; fractal parameters are calculated according to the obtained surface topography parameters of the pressure-bearing surface; calculating the static friction coefficient of the pressure-bearing surface according to the obtained surface topography parameters of the pressure-bearing surface; and carrying out a tensile test on the bolt connection structure, analyzing the residual pre-tightening force of the bolt connection structure, and obtaining the rule of the influence of the static friction coefficient of the pressure-bearing surface on the bolt looseness. According to the method, the influence of the static friction coefficient of the bolted connection pressure-bearing surface on the looseness of the bolted connection structure is considered, and the static friction coefficient model of the joint surface i
Bibliography:Application Number: CN202310254728