This work contains comprehensive analysis of wind turbine and its components regarding wear as a consequence of given operating conditions. Each wear mechanism as well as its physical and chemical background is thoroughly discussed, while also using supporting literature. In experimental part of the work, wind turbine gearbox is analysed as a combined gear system. An experiment using tribological test rig is therefore applied, and friction coefficient is analysed for contacts simulating real-time bearing running and gear meshing.
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