From Hertzian contact to spur gears: analyses of stresses and rolling contact fatigue
| Autor: | Fabrice Ville, Guillaume Vouaillat, Jean-Philippe Noyel, Xavier Kleber, Sylvain Rathery |
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| Přispěvatelé: | Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] (LaMCoS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2019 |
| Předmět: |
[PHYS]Physics [physics]
Materials science Scale (ratio) business.industry Mechanical Engineering Work (physics) Nucleation 02 engineering and technology Structural engineering Surface finish 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering 020303 mechanical engineering & transports Contact mechanics 0203 mechanical engineering General Materials Science Point (geometry) Grain boundary 0210 nano-technology Representation (mathematics) business |
| Zdroj: | Mechanics & Industry Mechanics & Industry, 2019, 20, ⟨10.1051/meca/2019064⟩ |
| ISSN: | 2257-7750 2257-7777 |
| DOI: | 10.1051/meca/2019064 |
| Popis: | The study of rolling contact fatigue in spur gears requires a good comprehension of all the phenomena occurring at the material scale. On a numerical point of view, a realistic representation of the material and of the load repartition function of the local micro-geometries is needed. However the resulting models are often complex and time-consuming. So, this work aims at developing a model meeting these specificities. Thus, different sections of the spur gear material granular geometry are simulated first. Secondly, the contact pressure fields are computed accurately relatively to the simulated surface microgeometry. Then, the influence of several parameters on their rolling contact fatigue life is highlighted. Among friction, sliding coefficient, load variation and roughness, these individual or combined parameters are taken into account in the model, tested and their impact stressed out. Finally, a fatigue criteria based on rolling contact fatigue micro-cracks nucleation at grain boundaries is proposed in order to compare simulations and influencing parameters to the reference. |
| Databáze: | OpenAIRE |
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