An Approximate Algorithm for Shakedown on Gear Contact

Abstract:

A model of gear contact has been established based on Hertz theory. Local coordinates are constructed on different meshing points because curvature of gear profile is not constant and then distributions of residual stresses and strains are given. Upper and lower bounds for the shakedown limits have been obtained. An approximate algorithm based on a stress invariant hypothesis and a stress/strain relaxation procedure is developed to solve residual stresses and strains accumulation in elastic-plastic stress analysis of gear contact. The steady-state residual stresses of gear under repeat meshing are calculated. The results are useful information for the strength design of gear.

• Periodical: Applied Mechanics and Materials (Volume 160)
• Pages: 59-63
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.160.59
• Online since: March 2012
• Authors: Yuan Yuan, Kun Shi, Kai Liu
• Keywords: Contact, Gear, Residual Stress, Shakedown, Variable Curvature

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