Dynamic Analysis of Wind Turbine Gearbox Components

Mingming Zhao and Jinchen Ji
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Mingming Zhao: School of Electrical, Mechanical and Mechatronic Systems, University of Technology Sydney, Sydney 2000, Australia
Jinchen Ji: School of Electrical, Mechanical and Mechatronic Systems, University of Technology Sydney, Sydney 2000, Australia

Energies, 2016, vol. 9, issue 2, 1-18

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.

Keywords: wind turbine; gearbox; dynamic responses; excitation conditions; time-varying mesh stiffness; static transmission error; damping; gear backlash (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (11)

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