Functionality of Bearings in the Shafts of a Vertical-Axis Wind Turbine

Stanisław Szweda, Grzegorz Głuszek, Marek Szyguła, Wojciech Grzegorzek, Daniel Adamecki (), Jarosław Mikuła and Stanisław Mikuła
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Stanisław Szweda: KOMAG Institute of Mining Technology, 44-100 Gliwice, Poland
Grzegorz Głuszek: Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, 44-100 Gliwice, Poland
Marek Szyguła: KOMAG Institute of Mining Technology, 44-100 Gliwice, Poland
Wojciech Grzegorzek: Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, 44-100 Gliwice, Poland
Daniel Adamecki: Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, 44-100 Gliwice, Poland
Jarosław Mikuła: Faculty of Mechanical Engineering, Silesian University of Technology, 44-100 Gliwice, Poland
Stanisław Mikuła: Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, 44-100 Gliwice, Poland

Energies, 2024, vol. 17, issue 20, 1-29

Abstract: The article contains a description of the design solutions proposed by the authors for a hybrid wind turbine bearing, in which the sliding part takes over the load to the turbine shaft after reaching the shaft rotation speed, ensuring hydrodynamic lubrication of the plain bearing and relieving the rolling bearing. This allows for low starting resistance of the power plant and ensures quiet operation during use. Two conceptual solutions of a hybrid bearing were presented, differing in the shape of the plain bearing journal. A mechanism for automatic switching of the load between a rolling and a plain bearing was developed. A solid simulation model of this mechanism was built in the Autodesk Inventor—Dynamic Simulation software Inventor Professional 2023 environment, and its operation was simulated. The results confirmed the usefulness of using this design in shaft-bearing systems of wind turbines with a vertical axis of rotation. Based on the simulation, the speed at which the thrust roller bearing will be released was determined. Technical parameters of a plain bearing with a spherical journal shape were calculated. The height of the lubrication gap and the shaft rotational speed at which the bearing load capacity index reaches a critical value were determined.

Keywords: green energy; renewable energy sources (RES); vertical-axis wind turbine (VAWT); hybrid bearing; quiet operation (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: 2024
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