Puchtler, Steffen ; Schirra, Tobias ; Kirchner, Eckhard ; Späck-Leigsnering, Yvonne ; De Gersem, Herbert (2022)
Capacitance calculation of unloaded rolling elements – Comparison of analytical and numerical methods.
In: Tribology International, 176
doi: 10.1016/j.triboint.2022.107882
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Various methods for calculating the capacitance of unloaded rolling elements are compared to improve the electric characterization of rolling element bearings. Semi-analytical approximations and finite element simulations are applied and a closed-form analytical two-dimensional solution is derived for comparison. The results show that the most common semi-analytical approximation, which uses effective radii to express the contact geometry, reproduces the trend from numerical and analytical calculations, but overestimates the results derived from numerical simulations. Another semi-analytical approach is presented that delivers better results for the capacitance of unloaded point contacts.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Puchtler, Steffen ; Schirra, Tobias ; Kirchner, Eckhard ; Späck-Leigsnering, Yvonne ; De Gersem, Herbert |
| Art des Eintrags: | Bibliographie |
| Titel: | Capacitance calculation of unloaded rolling elements – Comparison of analytical and numerical methods |
| Sprache: | Englisch |
| Publikationsjahr: | Dezember 2022 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Tribology International |
| Jahrgang/Volume einer Zeitschrift: | 176 |
| DOI: | 10.1016/j.triboint.2022.107882 |
| Kurzbeschreibung (Abstract): | Various methods for calculating the capacitance of unloaded rolling elements are compared to improve the electric characterization of rolling element bearings. Semi-analytical approximations and finite element simulations are applied and a closed-form analytical two-dimensional solution is derived for comparison. The results show that the most common semi-analytical approximation, which uses effective radii to express the contact geometry, reproduces the trend from numerical and analytical calculations, but overestimates the results derived from numerical simulations. Another semi-analytical approach is presented that delivers better results for the capacitance of unloaded point contacts. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Produktentwicklung und Maschinenelemente (pmd) 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Teilchenbeschleunigung und Theorie Elektromagnetische Felder |
| Hinterlegungsdatum: | 21 Sep 2022 05:29 |
| Letzte Änderung: | 22 Sep 2022 09:06 |
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