The Contact Analysis of Helical Gear in Considering Gear Shaft Deformation

doi:10.3969/j.issn.1000-1093.2015.10.021

Abstract

Abstract: A finite element model for transmission is developed for the contact analysis of helical gear in considering gear shaft deformation. The finite element method and model are validated by using the finite-difference method to calculate the deformation of gear shaft and the ISO 6336-1 standard to calculate the mesh stiffness. The distribution of contact force along the tooth width, tooth von Mises stress, tooth root bending stress and contact force of each tooth pair during meshing process are obtained from two finite element models of rigid and flexible shafts. Contact ratio and mesh stiffness are performed between two gear teeth at different contact positions during meshing process. The results show that the deformation of gear shaft affects the tooth load distribution along the tooth width, increases contact ratio, and decreases the mesh stiffness.

Key words: mechanics, transmission, gear shaft, deformation, mesh stiffness, contact analysis

CLC Number:

TH132

BAI En-jun， XIE Li-yang， TONG An-shi， BAI Xin. The Contact Analysis of Helical Gear in Considering Gear Shaft Deformation[J]. Acta Armamentarii, 2015, 36(10): 1975-1981.

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