TY - JOUR ID - scholars5289 EP - 211 SN - 00207403 N2 - In this paper an attempt has been made to study the contact stresses among the helical gear pairs, under static conditions, by using a 3D finite element method. The helical gear pairs on which the analysis was carried out were 0°, 5°, 15°, 25° helical gear sets. The Lagrange multiplier algorithm has been used between the contacting pairs to determine the stresses. The effect of friction was varied at the point of contact which made the problem nonlinear and complicated. To simplify the problem, a range of average static coefficients of friction, from 0 to 0.3, has been considered as the scope of study. The variation of contact stresses with helix angle and also with friction coefficients has been discussed. The commercial finite element software used was ANSYS and the results were compared with analytical calculations. © 2014 Elsevier Ltd. KW - Finite element method; Helical gears; Lagrange multipliers KW - 3-D finite element method; Analytical calculation; Coefficients of friction; Contact Stress; Contact stress analysis; Finite element software; Friction coefficients; Frictional coefficients KW - Friction TI - Contact stress analysis of helical gear pairs, including frictional coefficients SP - 205 PB - Elsevier Ltd AV - none N1 - cited By 82 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903219376&doi=10.1016%2fj.ijmecsci.2014.05.013&partnerID=40&md5=852a5dd8f2e720a68bfed7027747fe54 A1 - Patil, S.S. A1 - Karuppanan, S. A1 - Atanasovska, I. A1 - Wahab, A.A. Y1 - 2014/// VL - 85 JF - International Journal of Mechanical Sciences ER -