scholarly journals An experimental characterization of the friction coefficient of a wind turbine gearbox lubricant

Wind Energy ◽  
2019 ◽  
Vol 22 (4) ◽  
pp. 509-522 ◽  
Author(s):  
Charles Nutakor ◽  
David Talbot ◽  
Ahmet Kahraman
Keyword(s):  
Friction Coefficient ◽  
Wind Turbine ◽  
Experimental Characterization ◽  
Wind Turbine Gearbox

Experimental Characterization of Sliding Friction: Crossing From Deformation to Plowing Contact

2000 ◽  
Vol 122 (4) ◽  
pp. 856-863 ◽  
Author(s):  
M. R. Lovell ◽  
Zhi Deng ◽  
M. M. Khonsari
Keyword(s):  
Friction Coefficient ◽  
Sliding Friction ◽  
Normal Load ◽  
Operating Conditions ◽  
Experimental Characterization ◽  
Lubricant Oil ◽  
Ball Diameter ◽  
Sliding Friction Coefficient ◽  
Pin On Disk

A pin-on-disk tribometer was used to investigate the influence of several parameters on the sliding friction coefficient between hard and deformable surfaces. Pin (1045 tool steel) and disk (aluminum 1100) were utilized to simulate the interaction of a harder tool sliding relative to a softer deformable workpiece. Friction coefficient results were obtained at 561 distinct operating conditions by varying the ball diameter (3.18, 6.35, and 12.70 mm), lubricant (oil B, oil A, and grease), sliding speed (0.1∼0.8 m/s) and normal load (50∼1200 g). Several relationships which characterize the behavior of the friction coefficient as a function of the shear factor, τk, are established. the importance of these relationships, as related to stamping and forming processes, is discussed. [S0742-4787(00)01703-3]

Experimental Characterization of Contact Hysteresis at High Temperatures

2006 ◽  
Author(s):  
Sergio Filippi ◽  
Esequiel B. Rodrigues ◽  
Muzio M. Gola
Keyword(s):  
Friction Coefficient ◽  
Experimental Determination ◽  
Measurement System ◽  
Experimental Characterization ◽  
Test Rig ◽  
Tangential Load ◽  
Wide Range ◽  
Induction System

The current paper presents a measurement system for the experimental determination of contact hysteresis cycles at temperatures up to 800° C. A test rig was designed to conduct experiments in a wide range of temperatures, with different combinations of normal and tangential load, frequencies and contacting materials. An induction system supplies the heat for measurements of hysteresis cycles at the required temperatures. Measurements show the dependence of the friction coefficient on temperature.

Experimental characterization of friction coefficient at the tool–chip–workpiece interface during dry cutting of AISI 1045

Wear ◽  
2012 ◽  
Vol 286-287 ◽  
pp. 108-115 ◽  
Author(s):  
H. Ben Abdelali ◽  
C. Claudin ◽  
J. Rech ◽  
W. Ben Salem ◽  
Ph. Kapsa ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Experimental Characterization ◽  
Dry Cutting ◽  
Aisi 1045
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