Authors: Trần Hữu Danh, Nguyễn Thanh Quang, Đào Duy Trung

Published in: The 5th National Conference on Science and Technology in Mechanical Engineering (VCME 2018). ISBN 978-604-67-1103-2

Publication date: 10/2018

Abstract: The propeller shaft in automobiles is the component that transmits torque from the gearbox to the drive axle. When the vehicle travels on uneven road surfaces, suspension system oscillations cause the inclination angle of the propeller shaft to constantly change in the vertical plane, leading to variations in the dynamic parameters of the propeller shaft and loads in the system. The maximum load when resonance occurs can damage the propeller shaft; therefore, this resonance phenomenon should be avoided in design, installation, and operation.

This paper presents experiments to determine the relationships between dynamic parameters and strength parameters of the propeller shaft. The experiments use an open-loop power test bench with an IVECO 81kW diesel drive motor and an MP100S loading mechanism. The test cases include varying the shaft inclination angle, shaft length, and shaft rotational speed at load modes corresponding to actual vehicle operating loads on the road. The experimental results determined the stress and strain values on the shaft in the above cases. Based on the experimental results, these can serve as reference data for design and manufacturing calculations to ensure adequate strength of automotive propeller shafts.

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