Acurate bending strength analysis of asymmetric gcears using the novel ES-PIM with triangular mesh

Abstract

This paper extends the edge-based smoothed point interpolation method (ES-PIM) to bending strength analysis of asymmetric gears with complex outlines. Five sets of asymmetric gears with pressure angles of 20°/20°, 25°/20°, 30°/20°, 35°/20° and 40°/20° were generated by a specially designed rack cutter. Four key factors, e.g. accuracy, convergence, the convergence rate and the computational efficiency of the present ES-PIM were checked in great detail on these five models, and the distributions of bending stresses at the fillet of the drive side were carefully investigated. The fini e element method (FEM) was also used to calculate the abovementioned factors to stress the advantages of ES-PIM. The numerical results indicate that ES-PIM can provide more effi ient and accurate solutions in the stress field than the FEM, and is very suitable for s ress analysis of complicated asymmetric gears. © Universiti Malaysia Pahang.