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2015•Acta ArmamentariiRequires access

The Contact Analysis of Helical Gear in Considering Gear Shaft Deformation

Bai En-ju

Open publisher page 3 citations

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 finitedifference 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.

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What this paper is about

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 finitedifference 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.

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Available 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 finitedifference 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 concepts: Finite element method, Contact analysis, von Mises yield criterion, Stiffness, Structural engineering, Deformation (meteorology), Contact mechanics, Stress (linguistics)

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