Influence of tyre-road contact model on vehicle vibration response

The influence of the tyre-road contact model on the simulated vertical vibration response was analysed. Three contact models were compared: tyre-road point contact model, moving averaged profile and tyre-enveloping model. In total, 1600 real asphalt concrete and Portland cement concrete longitudinal...

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Bibliographic Details
Published in:Vehicle system dynamics 2015-09, Vol.53 (9), p.1227-1246
Main Authors: Múčka, Peter, Gagnon, Louis
Format: Article
Language:English
Subjects:
Automobiles
Automotive engineering
Comfort
Concretes
Contact
dynamic tyre force
half car model
Mathematical models
ride comfort
road profile
Roads
tyre-road contact model
Vibration
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Summary:The influence of the tyre-road contact model on the simulated vertical vibration response was analysed. Three contact models were compared: tyre-road point contact model, moving averaged profile and tyre-enveloping model. In total, 1600 real asphalt concrete and Portland cement concrete longitudinal road profiles were processed. The linear planar model of automobile with 12 degrees of freedom (DOF) was used. Five vibration responses as the measures of ride comfort, ride safety and dynamic load of cargo were investigated. The results were calculated as a function of vibration response, vehicle velocity, road quality and road surface type. The marked differences in the dynamic tyre forces and the negligible differences in the ride comfort quantities were observed among the tyre-road contact models. The seat acceleration response for three contact models and 331 DOF multibody model of the truck semi-trailer was compared with the measured response for a known profile of test section.
ISSN:0042-3114
1744-5159
DOI:10.1080/00423114.2015.1041992