Traction curves and rheological parameters of fully formulated gear oils

• Tipo: Artigo em Revista Científica Internacional
• Data: 2011

Autores

brandao, ja (Autor) Outra; meheux, m (Autor) Outra; seabra, jho (Autor) FEUP; ville, f (Autor) Outra; castro, mjd (Autor) FEUP

Revista

Título: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology

Vol. 225 Nº 12

Páginas: 577-593

ISSN: 1350-6501

Editora: SAGE

Indexação

ISI Web of Knowledge - 26 Citações

Scopus - 29 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia mecânica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia mecânica

Outras Informações

ID Authenticus: P-002-PXD

DOI: 10.1177/1350650111405111

Resumo (PT): Traction curves and rheological parameters of fully formulated gear oils

Abstract (EN): The rheological behaviour of several fully formulated gear oils is characterized: two mineral-based oils, one poly-alpha-olefin, and three ester-based oils. Experimental traction curves were obtained on a mini-traction machine, where the selected gear oils were submitted to numerous traction tests combining several temperatures, contact loads, and rolling speeds. Having obtained the experimental data from the traction tests, it was least-squares fitted to a rheological model (elasto-viscoplastic rheological model) in order to obtain the model's governing parameters: elastic modulus and limiting shear stress and their dependence on pressure and temperature. This study presents both the traction tests results and the fitted rheological parameters, and discusses the similarities and differences between the oils, as well as the influence of the operating conditions on the behaviour of the oil.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 17