A new methodology for prediction of high-cycle contact fatigue for spur gears
Apstrakt
High-cycle contact fatigue is a localized phenomenon that occurs in highly stressed grains of the material on or under the contact region. The contact zones of tooth flanks for meshed gears are subjected to contact fatigue damages that causes pitting and leads to gears failure. The objective of this paper is to give a new viewpoint in contact fatigue prediction in the case of high-cycle fatigue. The main aim of the presented research is to make the methodology for direct calculation of fatigue crack initiation in contact zones. This methodology is developed for spur gears and used up-to-date methods and multidisciplinary approach. Two methods are built in the new methodology: the Theory of Critical Distances (TCD) and the Finite Element Method (FEM). In this paper the comparative analysis of standard and new methodology for prediction of fatigue crack initiation on tooth flanks is presented. The advantages of methods and procedures used in the new methodology are presented through a ca...se study of particular gear pair. The Finite Element Analysis on 3D gear contact model is used for stress and strain calculation and prediction of the maximum stress location in contact zones along the gear face width. The stress gradient curves from the contact zone are made for a pinion tooth in different cross sections along gear facewidth. The Theory of Critical Distances used these stress gradients and material characteristics for fatigue crack initiation prediction. The benefits of presented methodology are shown by the detail analysis of the obtained results.
Ključne reči:
theory of critical distances / gears / finite element analysis / fatigue / contactIzvor:
Machine Design, 2012, 4, 4, 189-196Izdavač:
- Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad
Institucija/grupa
Institut za ispitivanje materijalaTY - JOUR AU - Mitrović, Radivoje AU - Atanasovska, Ivana AU - Momčilović, Dejan PY - 2012 UR - http://rims.institutims.rs/handle/123456789/173 AB - High-cycle contact fatigue is a localized phenomenon that occurs in highly stressed grains of the material on or under the contact region. The contact zones of tooth flanks for meshed gears are subjected to contact fatigue damages that causes pitting and leads to gears failure. The objective of this paper is to give a new viewpoint in contact fatigue prediction in the case of high-cycle fatigue. The main aim of the presented research is to make the methodology for direct calculation of fatigue crack initiation in contact zones. This methodology is developed for spur gears and used up-to-date methods and multidisciplinary approach. Two methods are built in the new methodology: the Theory of Critical Distances (TCD) and the Finite Element Method (FEM). In this paper the comparative analysis of standard and new methodology for prediction of fatigue crack initiation on tooth flanks is presented. The advantages of methods and procedures used in the new methodology are presented through a case study of particular gear pair. The Finite Element Analysis on 3D gear contact model is used for stress and strain calculation and prediction of the maximum stress location in contact zones along the gear face width. The stress gradient curves from the contact zone are made for a pinion tooth in different cross sections along gear facewidth. The Theory of Critical Distances used these stress gradients and material characteristics for fatigue crack initiation prediction. The benefits of presented methodology are shown by the detail analysis of the obtained results. PB - Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad T2 - Machine Design T1 - A new methodology for prediction of high-cycle contact fatigue for spur gears EP - 196 IS - 4 SP - 189 VL - 4 UR - https://hdl.handle.net/21.15107/rcub_rims_173 ER -
@article{ author = "Mitrović, Radivoje and Atanasovska, Ivana and Momčilović, Dejan", year = "2012", abstract = "High-cycle contact fatigue is a localized phenomenon that occurs in highly stressed grains of the material on or under the contact region. The contact zones of tooth flanks for meshed gears are subjected to contact fatigue damages that causes pitting and leads to gears failure. The objective of this paper is to give a new viewpoint in contact fatigue prediction in the case of high-cycle fatigue. The main aim of the presented research is to make the methodology for direct calculation of fatigue crack initiation in contact zones. This methodology is developed for spur gears and used up-to-date methods and multidisciplinary approach. Two methods are built in the new methodology: the Theory of Critical Distances (TCD) and the Finite Element Method (FEM). In this paper the comparative analysis of standard and new methodology for prediction of fatigue crack initiation on tooth flanks is presented. The advantages of methods and procedures used in the new methodology are presented through a case study of particular gear pair. The Finite Element Analysis on 3D gear contact model is used for stress and strain calculation and prediction of the maximum stress location in contact zones along the gear face width. The stress gradient curves from the contact zone are made for a pinion tooth in different cross sections along gear facewidth. The Theory of Critical Distances used these stress gradients and material characteristics for fatigue crack initiation prediction. The benefits of presented methodology are shown by the detail analysis of the obtained results.", publisher = "Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad", journal = "Machine Design", title = "A new methodology for prediction of high-cycle contact fatigue for spur gears", pages = "196-189", number = "4", volume = "4", url = "https://hdl.handle.net/21.15107/rcub_rims_173" }
Mitrović, R., Atanasovska, I.,& Momčilović, D.. (2012). A new methodology for prediction of high-cycle contact fatigue for spur gears. in Machine Design Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad., 4(4), 189-196. https://hdl.handle.net/21.15107/rcub_rims_173
Mitrović R, Atanasovska I, Momčilović D. A new methodology for prediction of high-cycle contact fatigue for spur gears. in Machine Design. 2012;4(4):189-196. https://hdl.handle.net/21.15107/rcub_rims_173 .
Mitrović, Radivoje, Atanasovska, Ivana, Momčilović, Dejan, "A new methodology for prediction of high-cycle contact fatigue for spur gears" in Machine Design, 4, no. 4 (2012):189-196, https://hdl.handle.net/21.15107/rcub_rims_173 .