Influence of lubricant properties and temperature on the scuffing failure of FZG gears

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 1999

Autores

castro, j (Autor) Outra; seabra, j (Autor) FEUP

Ata de Conferência Internacional

Título: LUBRICATION AT THE FRONTIER: THE ROLE OF THE INTERFACE AND SURFACE LAYERS IN THE THIN FILM AND BOUNDARY REGIME

Páginas: 655-664

25th Leeds-Lyon Symposium on Tribology

LYON, FRANCE, SEP 08-11, 1998

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 1 Citação

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia dos materiais

Outras Informações

ID Authenticus: P-001-6FW

DOI: 345650688,12,1

Abstract (EN): The analysis of experimental scuffing results of FZG gears lubricated with mineral paraffinic base oils, with different viscosities, showed the relevance of friction power dissipation in gear scuffing, represented by the produce of traction coefficient by hertzien pressure and sliding speed. This scuffing criteria called FPI, in the same way as other criteria, is strongly dependent on the traction coefficient. It's application, with several well known traction coefficient expressions, describes particularly well the experimental results, in what concerns scuffing load and sliding speed variations, but they are insufficient when comparing different lubricants or different test temperatures. In this work a traction coefficient for FZG type A gears is defined, based on FPI scuffing criteria and scuffing experimental results, involving kinematic viscosity and the specific mass of the lubricant. The lubricant film thickness is also relevant in gear scuffing, and in this work, a possible relation between friction power dissipation and critical film thickness in scuffing conditions is presented.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6