Traction coefficient in a roller inner ring EHD contact in a jet engine roller bearing

• Type: Article in International Scientific Journal
• Date: 1997

Authors

sottomayor, a (Author) Other; campos, a (Author) Other; seabra, j (Author) FEUP

Journal

Title: Wear

Vol. 209

Pages: 274-283

ISSN: 0043-1648

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 8 Citations

ISI Web of Science

Scopus - 11 Citations

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-001-B0Q

DOI: 10.1016/s0043-1648(97)00013-6

Abstract (EN): A simplified non-newtonian EHD model developed previously is used for the analysis of a roller-inner ring contact in a jet engine roller bearing. The lubricant behaves according to the viscoelastic rheological model, with a Ree-Eyring fluid, and the lubricant parameters are function of the pressure, temperature and rolling speed. The traction coefficient results obtained with this model are compared with previous experimental results obtained in a twin-disk machine. Finally, the influence of the operating conditions (pressure, temperature, rolling speed and slide-to-roll ratio) and of the waviness of the contacting surfaces, on the traction coefficient inside the roller-inner ring contact, is analysed. (C) 1997 Elsevier Science S.A.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10