Optimized use of cooling holes to decrease the amount of thermal damage on a plastic gear tooth

Koffi, Demagna, Bravo, Alencar, Toubal, Lotfi et Erchiqui, Fouad (2016). Optimized use of cooling holes to decrease the amount of thermal damage on a plastic gear tooth. Advances in Mechanical Engineering , 8 (5). doi:10.1177/1687814016638824 Repéré dans Depositum à https://depositum.uqat.ca/id/eprint/978

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Résumé

The full potential of plastic gear usage is limited by not only poor mechanical properties but also equally poor temperature limits and poor heat conduction properties. Cooling holes were developed to decrease the amount of thermal damage on the contact surface. These cooling holes promote increased stress and tooth deflection, thus exerting a negative effect. This article compares various cooling holes for plastic gear configurations and proposes novel cooling holes. Thermal and mechanical simulations that consider specific aspects of plastic gear meshing were performed. The main objective of this article was to verify the best methods for reducing thermal damage through cooling holes. The results indicate the best compromise between the temperature reduction and the mechanical properties of the new tooth geometry. The results also indicate that the simple variations in the cooling holes proposed can improve tooth performance.

Type de document:	Article
Informations complémentaires:	Licence d'utilisation : CC-BY 4.0
Mots-clés libres:	Gears; damage mechanics; plastics; machine design; finite element analysis
Divisions:	Génie
Date de dépôt:	27 mars 2020 13:37
Dernière modification:	27 mars 2020 13:37
URI:	https://depositum.uqat.ca/id/eprint/978

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