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Influence of using Stress Feature on Reducing the Stress in Spur Gear

Author(s):

Pratik Maheshwari , Veerayatan Group of Institutions Foe-Fom,Mandvi-Kutch; Aum Thacher, Veerayatan Group of Institutions Foe-Fom,Mandvi-Kutch

Keywords:

Spur Gear, FEA, Stress Redistribution

Abstract

Gears generally fail when the working stress exceeds the maximum permissible stress. Number of studies has been done by various authors to analyze the gear for stresses. Gears have been analyses for different points of contact on the tooth profile and the corresponding points of contact on the pinion. In this study the technology of gears is presented along with the various types of failures that gears have. The causes of these failures are studied and one type of stress related failure due to fatigue failure of a gear tooth due to stress concentration is detailed. This work presents the stress redistribution by introducing the stress relieving features in the stressed zone to the reduction of root fillet stress in spur gear. In this work circular stress relieving features are used and better results are obtained. A finite element model with a segment of three teeth is considered for analysis and stress relieving features of various diameters are introduced on gear teeth. Analysis revealed that circular stress relieving feature at specific locations is beneficial.

Other Details

Paper ID: IJSRDV3I31013
Published in: Volume : 3, Issue : 3
Publication Date: 01/06/2015
Page(s): 1696-1698

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