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Towards a model for the number of airborne particles generated from a sliding contact
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi.ORCID iD: 0000-0003-2489-0688
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Services Engineering.
2009 (English)In: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 267, no 12, 2252-2256 p.Article in journal (Refereed) Published
Abstract [en]

Recently, much attention has been given to the influence of airborne particles in the atmosphere on human health. Sliding contacts are a significant source of airborne particles in urban environments. Airborne particles may be generated by disc brakes and wheel-rail contacts. This paper presents a new model for determining the number of airborne particles generated by a sliding contact. Previously presented data from a pin-on-disc tribometer equipped with airborne particle counting instrumentation was used to verify the model. The derived particle rate is proportional to the load for the ball bearing steel material evaluated. Furthermore, the model incorporates three particle regimes with distinct number peaks; one with ultra fine particles with a peak around 0.08 mu m, one with fine particles with a peak around 0.35 mu m and one with coarse particles with a peak around 2 mu m, that can be used to rank the number of generated particles from different material combinations and contact conditions.

Place, publisher, year, edition, pages
2009. Vol. 267, no 12, 2252-2256 p.
Keyword [en]
Wear, Airborne particles, Wear coefficient, Particle coefficient
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-30381DOI: 10.1016/j.wear.2009.05.002ISI: 000272810200014ScopusID: 2-s2.0-72149091186OAI: diva2:401261
QC 20110302 13th Nordic Symposium on Tribology (NORDTRIB 2008), Tampere Univ Technol, Tampere, FINLAND, JUN 10-13, 2008Available from: 2011-03-02 Created: 2011-02-24 Last updated: 2011-12-15Bibliographically approved

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Olofsson, UlfOlander, Lars
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