Failure analysis of a centrifugal pump shaft experiencing plastic deformation using the exact and finite element method

8th Annual International Conference 2018 on Science and Engineering

工业技术（总论）

Husaini^1 ; Saputra, E.^2 ; Husni^3 ; Putra, E.^1 ; Rachman, M.^1

Computational Mechanics Laboratory, Department of Mechanical Engineering, Faculty of Engineering, Syiah Kuala University, Darussalam, Banda Aceh

23111, Indonesia^1

Department of Mechanical Engineering, South Aceh Polytechnic, Tapaktuan Aceh

23715, Indonesia^2

Department of Chemical Engineering, Faculty of Engineering, Syiah Kuala University, Darussalam, Banda Aceh

23111, Indonesia^3

关键词: Oil and Gas Industry;    Pump shafts;    Shaft material;    Torque loads;    Twist angles;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/523/1/012073/pdf
DOI  :  10.1088/1757-899X/523/1/012073

学科分类：工业工程学

来源: IOP

【 摘 要 】

An eight-stage centrifugal pump that was used in the oil and gas industry had plastic deformation on the shaft because of the torque load. Thus, this study was aimed at analyzing the shear stress that occurred on the shaft by an exact and finite element method. The shaft, with a length of 1.5 m and diameter of 0.05 m, was made of SUS 304 material. From the exact and finite element analysis results, the shear stress that occurred on the shaft was higher than the shear stress of the shaft material. Therefore, the pump shaft became plastically deformed and twisted. The results of the finite element analysis showed that the torque, shear stress, and strain were increased when the twist angle on the pump shaft was increased.