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.zeige mehrzeige weniger

Metadaten exportieren

Weitere Dienste

Teilen auf Twitter Suche bei Google Scholar Anzahl der Zugriffe auf dieses Dokument
Metadaten
Autor*innen:P. van Dijk, A. Kassman Rudolphi, Dieter Klaffke
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
Einverstanden
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.