| High-pressure behavior and tribological properties of wind turbine gear oil
Sobahan Mia*, Shota Mizukami, Ryusei Fukuda, Shigeki Morita and Nobuyoshi Ohno
The Journal of Mechanical Science and Technology, vol. 24, no. 1, pp.111-114, 2010
Abstract : Different types of synthetic polyalphaolefin (PAO) oils and a mineral oil are considered in this study. High-pressure viscosity test was
done and pressure-viscosity coefficient was measured for all sample oils. Results showed the better performance of PAO oils than the
mineral oil. Authors also tested some other tribological properties such as low-temperature behavior, bulk property, frictional coefficient,
and wear behavior, which are important for wind turbine gear oil. Low-temperature behavior and frictional property of PAO oils exhibited
the better results. Study also showed that the prediction of low-temperature fluidity is possible using the sound velocity in the oil.
Finally, the presence of polymethakrylate (PMA) absorbent in PAO oil exposed comparatively better results among all PAO oils.
Keyword : Wind turbine gear oil; Polyalphaolefin; Pressure-viscosity coefficient; Low temperature behavior; Molecular behavior |
