Tooth surface fatigue fracture risk assessment method
The invention relates to the technical field of mechanical transmission mechanism design, in particular to a tooth surface fatigue fracture risk assessment method, which comprises the following steps of: 1, converting a gear pair meshing contact model into a two-dimensional plane contact model, and...
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Main Authors | , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
24.11.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to the technical field of mechanical transmission mechanism design, in particular to a tooth surface fatigue fracture risk assessment method, which comprises the following steps of: 1, converting a gear pair meshing contact model into a two-dimensional plane contact model, and establishing a simplified model in finite element software; 2, inclusion types are added into the contact model, and mechanical parameters of the inclusion types are set; 3, calculating the stress distribution of the secondary surface of the tooth surface containing the inclusions; step 4, calculating equivalent residual stress and local shear strength of the material; and step 5, calculating a gear exposure coefficient according to a material exposure coefficient theory, and predicting a tooth surface fatigue fracture risk according to a distribution curve of the exposure coefficient along the depth direction of the tooth surface. According to the scheme, the raw material inclusion attribute is added when the gear |
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Bibliography: | Application Number: CN202311082890 |