THE COMPARATIVE ANALYSIS OF THE DIRECT ASYMMETRIC GEARS AND THE INVERTED ASYMMETRIC GEARS USING FINITE ELEMENTS METHODS

Abstract

The paper presents the comparative analysis, from the point of view of stress and displacements, of the two variant of an asymmetric gear that results when the direct or the inverted flank of the asymmetric tooth is the active one. There are analysed, using the 2D model of an asymmetric gear, obtained in AUTOCAD MECHANICAL with a generating program in AUTOLISP , the direct asymmetric gear and the inverted asymmetric gear. The gears have the same geometrical parameters but different functional parameters. The coefficient of asymmetry is different because the active flank is different. There are used, for generating the models and for verify the results, parameters obtained with a packet of Programs for Designing, Modelling and Analysing Asymmetric Gears developed as applications in MATLAB.