Introduction With its higher efficiency than solar panels, wind power is a fast-growing worldwide industry, with over 650GW of capacity installed all over the world now. 1.9 GW of freshly installed offshore wind capacity brought the total German fleet to 56.1 GW in 2021. This makes up over 28.000 turbines for now with number rising. Aus Wissenschaft und Forschung 31Tribologie + Schmierungstechnik · 70. Jahrgang · 2/2023DOI 10.24053/TuS-2023-0010 Simplified tribological approach for predesign of…

With the purpose of improving our predesign approach and increasing the end-product sustainability by going from resource wasting field testing to slender tribological model testing, we looked closer to commonly relevant calculation approaches as • Plint’s and Alliston-Greiner’s Energy Pulse (EP) • Matveesky’s friction power intensity (FPI) • Transmitted Energy (TE) to achieve fast and feasible tribo-system ranking for wind turbine bearing cases. With the concept of transmitted friction energy (Ef), satisfactory results were reached. We learned that 2-Disc tribometer may be used to simulate 100 % sliding, making comparison of different slippage rate easier by only using one tribometer, thus reducing measurement inaccuracies caused by different type of machines (e.g., pin on disc) or operator’s influence.