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An optical sensor for the identification of low adhesion in the wheel–rail contact
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.
Machine Design, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden.
Machine Design, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden.
Optical sensors.
Vise andre og tillknytning
2012 (engelsk)Inngår i: The international Journal of railway technology, ISSN 2049-5358, E-ISSN 2053-602X, Vol. 1, nr 3, s. 97-110Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Low adhesion between railway wheel and rail, usually induced by contaminants such as water, oil, and leaves, affects railway performance and safety. This study uses an optical sensor to identify various surface layers that cause low adhesion. In both a laboratory set-up and field tests under various conditions, the surface layers were identified by the optical sensor; in addition, the friction coefficients for the same surface layers were measured. The results indicate that the sensor can distinguish between different surface layers. This information, together with friction coefficient data, can be used in a prediction system for use by railway operators.

sted, utgiver, år, opplag, sider
2012. Vol. 1, nr 3, s. 97-110
Emneord [en]
Technology - Electrical engineering, electronics and photonics
Emneord [sv]
Optisk sensor, Räls, Is, Löv-halka, Teknikvetenskap - Elektroteknik, elektronik och fotonik
HSV kategori
Forskningsprogram
Experimentell mekanik
Identifikatorer
URN: urn:nbn:se:ltu:diva-7557Lokal ID: 5f1d9a2f-12fe-492e-8e7c-9b861cd2711bOAI: oai:DiVA.org:ltu-7557DiVA, id: diva2:980447
Merknad
Godkänd; 2012; 20130215 (johcas)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2017-11-24bibliografisk kontrollert

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