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Comparing Road Profiles with Vehicle Perceived Roughness
Responsible organisation
2004 (English)In: International Journal of Vehicle Design, ISSN 0143-3369, E-ISSN 1741-5314, Vol. 36, no 2-3, 270-286 p.Article in journal (Refereed) Published
Abstract [en]

Accurate road profiles are useful in vehicle design, such as for simulation of durability and ride quality. Laser/inertial profilometers typically record I mm wide profiles. The question is how well such a profile matches perceived vehicle wheel roughness. The objective here was to create a more representative wheel track longitudinal profile. Simulated and measured wheel vibration was compared on a 6km long road. Simulations were made for several definitions of the profile. Results for single laser sensor profiles showed reasonable likeness to truck perceived roughness. By far the best likeness (14.5% better) was achieved when the profile was based on triangular 25%-50%-25% weighted data from three sensors in the wheel track. Clearly, vehicle engineers can benefit from using multiple laser profile sensors, instead of a single sensor. This will improve test accuracy, thus reducing vehicle design project lead times and costs.

Place, publisher, year, edition, pages
Geneva, Switzerland: Inderscience Enterprises , 2004. Vol. 36, no 2-3, 270-286 p.
Keyword [en]
footprint, laser sensors, perceived roughness, profilometer, road profile
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:bth-8336Local ID: oai:bth.se:forskinfoC76239D1ED296DAEC125750C002E0524OAI: oai:DiVA.org:bth-8336DiVA: diva2:836046
Available from: 2012-09-18 Created: 2008-11-25 Last updated: 2015-06-30Bibliographically approved

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