Design and Analysis of Shear Pin of Lever Arm in Generator Circuit Breaker Using Finite Element Method

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Published: Jun 9, 2024
Keywords:
Crank arm Impact analysis Numerical simulation Power plant Shear bolt Failure

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K. Jaiyen
Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200, Thailand
W. Rangsri
Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200, Thailand

Abstract

Interruption in mechanism of the generator circuit breaker is a main cause of an overload impact and fracture of lever arm, resulting in suspension of the power plant’s electricity transmission. Recently, shear pin has gained more interest owing to its ability to be a force-transmitting and break-away parts. Herein, finite element simulation analysis was investigated using Abaqus explicit software. Three-dimensional (3D) model of the lever arm and clevis pin were simulated based on actual dimension and velocity for analysing stress and force between the lever arm and pin due to impact. Notch and hollow pins with different shear cross-sectional areas were also simulated using the similar model. Deformation, energy dissipation, and failure load of various shear pin dimensions were investigated to yield the suitable shear pin for preventing lever arm’s fracture. The great potential notch pin with 6 mm in-depth to protect the lever arm from damages could be assumed.

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How to Cite
Jaiyen, K. ., & Rangsri, W. (2024). Design and Analysis of Shear Pin of Lever Arm in Generator Circuit Breaker Using Finite Element Method. Journal of Research and Applications in Mechanical Engineering, 12(2), JRAME–24. Retrieved from https://ph01.tci-thaijo.org/index.php/jrame/article/view/254155
Issue
Vol. 12 No. 2 (2024)
Section
RESEARCH ARTICLES
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