Finite element application of Gear tooth analysis

Abstract

newline quotIn engineering and technology, the term gear is defined as the machine element used to transmit motion and power between the rotating shafts by means of progressive engagement of projections called teeth. newlineDeviations from the ideal gear geometries and unfavorable deformations during operation may cause serious defects called interference. The profile thus generated deviates from the theoretical profile. The removal of the material at the root of the gear tooth results in undercutting, which weakens the spur gear tooth further. newlineIn such cases, the practice which is universally adopted ,is known as profile correction or addendum modification. Gear optimizing with advanced calculation program ,with the support of suitable softwares is now available. By means of these. the calculation of any type of gears can be done without any problems.This opens new horizons to improve Gears. newlineMy work involves modeling of a gear tooth profile by means of a C-PROGRAM for the development of the standard tooth and a profile corrected tooth. Along the fillet regions of the tooth, various profile co-ordinates were calculated. newlineAt a later stage, an involute profile for the gear models were also developed using modeling softwares such as PRO-E, Unigraphics etc. These models depicted the exact involute shape to thus probe further ,regarding the stress effects for corrected gears for both standard and stub tooth gears and the stiffness characteristics of gears to be used for the finding the procedure for Dynamic load. newlinequot newline