Title: Altering heavy vehicle air suspension dynamic forces by modifying air lines

Authors: Lloyd Davis, Jonathan Bunker

Addresses: ITS and Electrical Technology, Department of Transport and Main Roads P.O. Box 1412 Brisbane GPO, 4001, Australia. ' School of Urban Development, Queensland University of Technology, GPO Box 2434, Brisbane 4001, Australia

Abstract: An experimental programme in 2007 used three air-suspended Heavy Vehicles (HVs) travelling over typical urban roads to determine whether dynamic axle-to-chassis forces could be reduced by using larger-than-standard diameter longitudinal air lines. This paper presents methodology, interim analysis and partial results from that program. Alterations to dynamic measures derived from axle-to-chassis forces with standard-sized longitudinal air lines vs. larger longitudinal air lines fitted are presented and discussed.

Keywords: air lines; dynamic loadings; heavy vehicles; payload increase; air suspension systems; dynamic forces; vehicle suspensions.

DOI: 10.1504/IJHVS.2011.037957

International Journal of Heavy Vehicle Systems, 2011 Vol.18 No.1, pp.1 - 17

Available online: 07 Jan 2011 *

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