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Characterising heavy vehicle suspensions – impulse testing results and analysis

Davis, Lloyd E. & Bunker, Jonathan M. (2008) Characterising heavy vehicle suspensions – impulse testing results and analysis. Main Roads, Brisbane, Australia.

Abstract

One response to requests from the transport industry to allow more “freight efficient” heavy vehicles (HVs) onto the road network has been that road authorities have allowed higher axle loads in return for HVs being equipped with “road-friendly” suspensions. These suspensions (particularly those with air springs) are critically dependant on shock absorber health for proper operation. They are only certified, however, as “road-friendly” at the time of manufacture and this via a type-test. Once in service, the “road-friendliness” is determined solely by the maintenance regime of the transport operator. There is no in-service test for HV suspensions in Australia yet. Over 50% of HVs do not meet at least one of the criteria for Australian requirements of “road-friendly” suspensions (Blanksby, George, Germanchev, Patrick, & Marsh, 2006). The Australian Government and the States of New South Wales and Queensland are funding a programme to develop an in-service suspension test for HVs (Australia Department of Transport and Regional Services, 2005a, 2005b). This report examines some possible low-cost test methodologies for an in-service HV suspension test and their results within the context of a “proof-of-concept” test programme. The results show that low-cost testing is possible and is comparable in accuracy to the high-cost methods used for the original “road-friendly” certification.

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ID Code: 16939
Item Type: Report
Keywords: road-friendly suspension, heavy vehicle, Matlab, Simulink model, suspension testing
ISBN: 978-1-920719-09-8
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > OTHER ENGINEERING (099900) > Engineering Instrumentation (099902)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Automation and Control Engineering (091302)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Circuits and Systems (090601)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Mechanical Engineering not elsewhere classified (091399)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Dynamics Vibration and Vibration Control (091304)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AUTOMOTIVE ENGINEERING (090200) > Automotive Engineering not elsewhere classified (090299)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Interdisciplinary Engineering not elsewhere classified (091599)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Electrical and Electronic Engineering not elsewhere classified (090699)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > OTHER ENGINEERING (099900) > Engineering not elsewhere classified (099999)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: State of Queensland (Department of Main Roads) & Queensland University of Technology
Copyright Statement: The authors have exerted their moral rights under the Copyright Act.
Deposited On: 16 Dec 2008 16:15
Last Modified: 09 Jun 2010 23:14

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