Fatigue Analysis of Rotating Parts. A Case Study for a Belt Driven Pulley

CAR2017 International Congress of Automotive and Transport Engineering - Mobility Engineering and Environment

工业技术;运输工程

Sandu, Ionela^1 ; Tabacu, Stefan^1 ; Ducu, Catalin^1

University of Pitesti, Romania^1

关键词: Engine assembly;    Fatigue analysis;    Inertia relief;    Initial conditions;    Life estimation;    Rotational motion;    Stress strain state;    Technical specifications;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/252/1/012029/pdf
DOI  :  10.1088/1757-899X/252/1/012029

学科分类：工业工程学

来源: IOP

【 摘 要 】

The present study is focused on the life estimation of a rotating part as a component of an engine assembly namely the pulley of the coolant pump. The goal of the paper is to develop a model, supported by numerical analysis, capable to predict the lifetime of the part. Starting from functional drawing, CAD Model and technical specifications of the part a numerical model was developed. MATLAB code was used to develop a tool to apply the load over the selected area. The numerical analysis was performed in two steps. The first simulation concerned the inertia relief due to rotational motion about the shaft (of the pump). Results from this simulation were saved and the stress - strain state used as initial conditions for the analysis with the load applied. The lifetime of a good part was estimated. A defect was created in order to investigate the influence over the working requirements. It was found that there is little influence with respect to the prescribed lifetime.