Stress Analysis on Single and Herringbone Helical Gears

Abstract

Abstract In the perspective of exploratory analysis into the theoretical concept and performance characteristics of helical gear design, a complete relationship between the design parameters and other working parameters remains to be clearly understood because of complexity. Gears are widely used to transmit mechanical power and where helical gears are known to have smoother transmission as compared to other gears. Often the stress generated on the tooth influences various operational parameters of a gear and where subjected to stresses which lead to failure. In helical the tooth failure occurs because of root bending stress acting on the gears. In this present work, a comparative study on helical gear design and its performance characteristics were made through Finite Element Analysis (FEA) as well as numerical method. Based on American Gear Manufacturing Association (AGMA) standards, theoretical analysis for single and herringbone helical gears have been evaluated in Matlab. The effect of tooth bending stress on single and herringbone helical gear system are studied through finite element analysis and compared with theoretical analysis. The comparison study is performed to determine the stress distribution on helical gears and it significantly increases the new variant design without considering design calculation by complex theoretical method which has scope of manual errors