Finite Element Analysis of Hollow Shaft under Torsion and Teaching Practice in Higher Vocational Colleges

Abstract

The problem of poor teaching effect of torsional deformation in Engineering Mechanics course in higher vocational colleges has existed for a long time. In order to solve it, the research group put forward a method of using finite element modeling and simulation calculation to obtain materials such as pictures, animation and etc., so as to enrich course resources and improve teaching quality. Hence a 3D finite element model of a shaft under torsion was established and conducted calculations on a computer. The calculated Mises stress nephogram and demonstration animation were used as course materials in the classroom of Engineering Mechanics. The teaching practice shows that the application of these materials improves teaching quality, and enhances students' learning interest. On the one hand, the stress cloud map shows the stress distribution in color (the more red the color is, the greater the Mises stress value is). This method of presentation is more clear and intuitive than the textbook. On the other hand, the model simulation and the animation demonstration are done on a computer, which not only has no danger, but also saves the cost of the relevant experiment. The research idea should be applied in more courses of vocational education.