Airborne wear particles from passenger car disc brakes: a comparison of measurements from field tests, a disc brake assembly test stand, and a pin-on-disc machine
2010 (English)In: Proceedings of the Institution of mechanical engineers. Part J, journal of engineering tribology, ISSN 1350-6501, E-ISSN 2041-305X, Vol. 224, no J2, 179-188 p.Article in journal (Refereed) Published
Most modern passenger cars have disc brakes on the front wheels.Unlike drumbrakes,disc brakes are not sealed off from the ambient air. During braking, both the rotor and the padswear, and this wear process generates particles that may become airborne. In field tests it isdifficult to distinguish these particles from others in the environment. It is thus preferable toconduct tests using laboratory test stands where the cleanness of the surrounding air can becontrolled.However, the validity of results fromthese test stands should be verifiedbycomparisonwith field tests. This article presents a comparison of the number and volume distributions ofairborne wear particles as measured online in field tests, in a disc brake assembly test stand,and in a pin-on-disc machine. In all cases, grey cast iron rotors and low metallic pads weretested. A promising correlation between the three different test methods is shown. The numberandvolume-weighted mean particle diameter for all test methods is about 0.4 and 2–3μm,respectively.
Place, publisher, year, edition, pages
England: Professional Engineering Publishing , 2010. Vol. 224, no J2, 179-188 p.
wear, airborne particles, disc brake, test stand, field test
IdentifiersURN: urn:nbn:se:kth:diva-11041DOI: 10.1243/13506501JET633ISI: 000275650100006ScopusID: 2-s2.0-77249128420OAI: oai:DiVA.org:kth-11041DiVA: diva2:234825
QC 201008272009-09-102009-09-102016-04-19Bibliographically approved