Analysis of bolt springback error based on ABAQUS

Jin Yang; LiGang Zhao; XiangGuo Kong

doi:10.1117/12.2681875

16 June 2023 Analysis of bolt springback error based on ABAQUS

Jin Yang, LiGang Zhao, XiangGuo Kong

Proceedings Volume 12639, Third International Conference on Mechanical Design and Simulation (MDS 2023); 126391S (2023) https://doi.org/10.1117/12.2681875
Event: Third International Conference on Mechanical Design and Simulation (MDS 2023), 2023, Xi'an, China

Abstract

Aiming at the problem that the pre-tightening force of the bolt is not equal to the set tension value due to the rebound error of the fastening bolt of the hydraulic tensioner, take the M20 bolt of a certain type of press as an example. Firstly, the three-dimensional models of bolts and hydraulic tensioners were established, and a new thread hexahedron mesh drawing method was adopted. Then, the mathematical model of bolt rebound and preload is constructed. Then, the finite element software ABAQUS was used to conduct static analysis of the process of tightening bolts by the tensioner, simulating the residual preload of bolts under 12 groups of different working conditions. Finally, the hydraulic tension experiment was designed for verification. The results show that when the same tension is applied, the residual preload of the bolt is about 65% of the set tension value, that is, the rebound error of the bolt is about 35%, and the error is reduced by 5% compared with the theoretical calculation value, the reliability of fastening bolts of hydraulic tensioner is improved.

Citation Download Citation

Jin Yang, LiGang Zhao, and XiangGuo Kong "Analysis of bolt springback error based on ABAQUS", Proc. SPIE 12639, Third International Conference on Mechanical Design and Simulation (MDS 2023), 126391S (16 June 2023); https://doi.org/10.1117/12.2681875

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