Author(s)

B. Abersek, J. Flaske & J. Balic

Abstract

The problem of determination of the service life of gearing is directly related to geometry of gears, multiaxial loadings, materials and appropriate models for prediction of the crack propagation. The more precise modelling of these input parameters the more precise and reliable the results are. All models according to different national standards are rough and give only approximate results since they do not take into account the actual conditions. Therefore we decided to develop models and procedures of calculations that will give more reliable and, in particular, more accurate results. We limited ourselves to the tooth root, i.e. the defects occurring there, since the fracture causes instantaneous gear failure, which can have catastrophic consequences. Pressures at the contact between two gears during engagement cause

Keywords