Investigations on Electrical Contacts Subjected to Fretting Motion
- This paper discusses the results and the consequences of the results obtained in a finished project on fretting testing at very small amplitudes. In this project a crossed cylinders model contact (radius 2.5 mm) was tested mainly in tangential oscillatory modes with strokes 2-100 µm, with forces between 0.5 and 5 N and frequencies of 1 and 10 Hz, financed by the European Commission. For non-noble contact platings it has been shown that very small amplitudes (< 10 µm) result in surface damage and contact failure. For noble platings it results in surface damage, only followed by contact failure after wear causes exposure of the non-noble underlayer. The most important conclusion from the project work was that the contact resistance remains low and stable in partial slip, while gross slip causes electrical failure(>0.5 .). In this paper the following items are discussed: i) The application of the Mindlin theory to predict the transition from partial to gross slip ii) Aspects of triboThis paper discusses the results and the consequences of the results obtained in a finished project on fretting testing at very small amplitudes. In this project a crossed cylinders model contact (radius 2.5 mm) was tested mainly in tangential oscillatory modes with strokes 2-100 µm, with forces between 0.5 and 5 N and frequencies of 1 and 10 Hz, financed by the European Commission. For non-noble contact platings it has been shown that very small amplitudes (< 10 µm) result in surface damage and contact failure. For noble platings it results in surface damage, only followed by contact failure after wear causes exposure of the non-noble underlayer. The most important conclusion from the project work was that the contact resistance remains low and stable in partial slip, while gross slip causes electrical failure(>0.5 .). In this paper the following items are discussed: i) The application of the Mindlin theory to predict the transition from partial to gross slip ii) Aspects of tribo simulation testing of electrical contacts iii) The methods of extending the allowable external displacement amplitude by additional springs that absorb part of the motion, and iv) The options if large vibrations at the contact interface can not be avoided.…
Autor*innen: | P. van Dijk, A. Kassman Rudolphi, Dieter Klaffke |
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Persönliche Herausgeber*innen: | W. Johler |
Dokumenttyp: | Beitrag zu einem Sammelband |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Proceedings of the 21st International Conference on Electrical Contacts |
Jahr der Erstveröffentlichung: | 2002 |
Herausgeber (Institution): | Schweizerischer Elektrotechnischer Verein |
Verlag: | SEV |
Verlagsort: | Fehraltorf |
Erste Seite: | 189 |
Letzte Seite: | 195 |
Veranstaltung: | 21st International Conference on Electrical Contacts ; 21st ICEC 2002 ; 21st Internationale Tagung über Elektrische Kontakte |
Veranstaltungsort: | Zurich, Switzerland |
Beginndatum der Veranstaltung: | 2002-09-09 |
Enddatum der Veranstaltung: | 2002-09-12 |
URL: | http://www.pvdijk.com/pdf/21thicecinvestigationsonfretting.pdf |
ISBN: | 3-9522504-0-6 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Nein |