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Browsing Fakultät für Maschinenbau by Author "e2fc41ee-df4e-4f5b-8414-7a61f70cadfc"
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Schwack, Fabian; Bader, Norbert; Leckner, Johan; Demaille, Claire; Poll, Gerhard
(Amsterdam [u.a.] : Elsevier Science, 2020)
Pitch bearings in wind turbines are affected by reciprocating motion due to pitch control. The combination of oscillating operation, high loads, and mixed lubrication often leads to wear. Grease lubricants in wind turbine ...
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Schneider, Volker; Liu, Hai-Chao; Bader, Norbert; Furtmann, Alexander; Poll, Gerhard
(Amsterdam [u.a.] : Elsevier Science, 2020-10-19)
Electrical bearing capacitance plays an important role in the prediction of harmful bearing currents, which could lead to premature failure of the bearing and the entire drive system. The effect of rolling speed, force, ...
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Stammler, Matthias; Schwack, Fabian; Bader, Norbert; Reuter, Andreas; Poll, Gerhard
(Göttingen : Copernicus GmbH, 2017)
Pitch bearings of wind turbines are large, grease-lubricated rolling bearings that connect the rotor blades with the rotor hub. They are used to turn the rotor blades to control the power output and/or structural loads of ...
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Schneider, Volker; Bader, Norbert; Liu, Haichao; Poll, Gerhard
(Amsterdam [u.a.] : Elsevier Science, 2022-03-10)
In this study, a novel capacitance based analytical method to monitor the film thickness in a ball bearing under a combination of axial and radial load is presented. Furthermore, an extended method is presented to infer ...
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Wandel, Sebastian; Bader, Norbert; Glodowski, Jakob; Lehnhardt, Bela; Leckner, Johan; Schwack, Fabian; Poll, Gerhard
(Cham : Springer International Publishing, 2022)
A common application for grease-lubricated oscillating rolling element bearings is, e.g., rotor blade bearings in wind turbines. These bearings mainly operate under conditions that are prone to starvation. If the grease ...
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Wandel, Sebastian; Bartschat, Arne; Glodowski, Jakob; Bader, Norbert; Poll, Gerhard
(Basel : MDPI, 2023)
Rotor blade bearings enable rotor blades to pivot about their longitudinal axis and thus control the power output and reduce the loads acting on the wind turbine. Over a design period of 20 years, rolling bearings are ...