Explicit Dynamic Analysis of Spur Gear Mesh at Different Speed Conditions

Abstract

Gears are among the basic elements in every mechanical device. Spur gears are one type of gears which are mostly used to transmit power between two parallel shafts. The gear cut on Spur gears is also parallel to the shaft axis. The design of a gear has a direct effect on the efficiency of the system they are containing in it. This leads to giving an attention to the appropriate design and testing of the gear system. Since laboratory testing is too costly, simulation get a wider acceptance recently. In this paper, Explicit Dynamic Analysis of Spur Gear is performed to demonstrate the response of the gear to the variation of rotational speed. ANSYS workbench is used as a simulation tool. The gear is driven by a pinion gear with an angular velocity ranging from 100 to 1000 rpm for the gear ratio of 4. The 3D model is first developed in Autodesk inventor software and the imported to ANSYS workbench. In ANSYS model environment the 3D model is meshed with special mesh near the gear tooth surface for accuracy. Appropriate boundary conditions and loadings are applied. The results of the simulation for Total Deformation are provided with their maximum value at the tooth tip or tooth root