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Energies 2016, 9(2), 110; doi:10.3390/en9020110

Dynamic Analysis of Wind Turbine Gearbox Components

School of Electrical, Mechanical and Mechatronic Systems, University of Technology Sydney, Sydney 2000, Australia
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Author to whom correspondence should be addressed.
Academic Editor: Frede Blaabjerg
Received: 26 October 2015 / Revised: 10 December 2015 / Accepted: 28 January 2016 / Published: 17 February 2016
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Abstract

This paper studies the dynamic response of a wind turbine gearbox under different excitation conditions. The proposed 4 degree-of-freedom (DOF) dynamic model takes into account the key factors such as the time-varying mesh stiffness, bearing stiffness, damping, static transmission error and gear backlash. Both the external excitation due to wind and the internal excitation due to the static transmission error are included to represent the gearbox excitation conditions. With the help of the time history and frequency spectrum, the dynamic responses of wind turbine gearbox components are investigated by using the numerical integration method. This paper explains under which conditions the fretting corrosion, as one of the wind turbine gearbox failure modes, may occur. Furthermore, it is observed that the external excitation fluctuation has large influence on the dynamic responses of both the gears and bearings. View Full-Text
Keywords: wind turbine; gearbox; dynamic responses; excitation conditions; time-varying mesh stiffness; static transmission error; damping; gear backlash wind turbine; gearbox; dynamic responses; excitation conditions; time-varying mesh stiffness; static transmission error; damping; gear backlash
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zhao, M.; Ji, J. Dynamic Analysis of Wind Turbine Gearbox Components. Energies 2016, 9, 110.

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