Torque loss of type C40 FZG gears lubricated with wind turbine gear oils

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Carlos M C G Fernandes (Author) Other; Ramiro C Martins (Author) FEUP; Jorge. H O Seabra (Author) FEUP

Journal

Title: Tribology International

Vol. 70

Pages: 83-93

ISSN: 0301-679X

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 21 Citations

Scopus - 25 Citations

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-008-G1S

DOI: 10.1016/j.triboint.2013.10.003

Resumo (PT): Five fully formulated wind turbine gear oils were characterised. The gear oils have 320 ISO VG grade and different formulations: ester, mineral, PAO, PAG and mineral+PAMA. A back-to-back FZG test machine, with re-circulating power, was used and a torque-cell was included on the test rig in order to measure the torque loss. Eight thermocouples were included to monitor the temperatures in different locations of the test rig. Tests at 1.13, 2.26 and 6.79 m/s were performed for different FZG load stages: K1, K5, K7 and K9. Both gearboxes were jet-lubricated with an oil flow of 3 l/min. The input flow temperature was kept almost constant (80 ±1 °C). Friction generated between the meshing teeth, shaft seals and rolling bearing losses was predicted.

Abstract (EN): Five fully formulated wind turbine gear oils were characterised. The gear oils have 320150 VG grade and different formulations: ester, mineral, PAO, PAG and mineral+PAMA. A back-to-back FZG test machine, with re-circulating power, was used and a torque-cell was included on the test rig in order to measure the torque loss. Eight thermocouples were included to monitor the temperatures in different locations of the test rig. Tests at 1.13, 2.26 and 6.79 m/s were performed for different FZG load stages: K1, K5, K7 and K9. Both gearboxes were jet-lubricated with an oil flow of 3 l/min. The input flow temperature was kept almost constant (80 +/- 1 degrees C). Friction generated between the meshing teeth, shaft seals and rolling bearing losses was predicted.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11