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Determining heavy vehicle suspension health from vibratory wheel loads

Davis, Lloyd E. & Bunker, Jonathan M. (2009) Determining heavy vehicle suspension health from vibratory wheel loads. In Proceedings of 3rd Smart Systems Student Conference, Owen J Wordsworth Room, Queensland University of Technology, Gardens Point, Brisbane.

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Abstract

A low-cost test bed was made from a modified heavy vehicle (HV) brake tester. By rotating a test HV’s wheel on an eccentric roller, a known vibration was imparted to the wheel under test. A control case for dampers in good condition was compared with two test cases of ineffective shock absorbers. Measurement of the forces at the bearings of the roller provided an indication of the HV wheel-forces. Where the level of serviceability of the shock absorbers varied, differences in wheel load provided a quality indicator corresponding to a change of damper characteristic. Conclusions regarding the levels of damper maintenance beyond which HV suspensions cause road damage and dynamic wheel forces at the threshold of tyre wear at which HV shock absorbers are normally replaced are presented.

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208 since deposited on 23 Oct 2009
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ID Code: 28141
Item Type: Conference Paper
Keywords: heavy vehicle, suspension health, shock absorbers, suspension dampers, suspension testing
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Australian and New Zealand Standard Research Classification > BUILT ENVIRONMENT AND DESIGN (120000) > OTHER BUILT ENVIRONMENT AND DESIGN (129900) > Built Environment and Design not elsewhere classified (129999)
Australian and New Zealand Standard Research Classification > BUILT ENVIRONMENT AND DESIGN (120000) > ENGINEERING DESIGN (120400) > Engineering Design not elsewhere classified (120499)
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) > MECHANICAL ENGINEERING (091300) > Dynamics Vibration and Vibration Control (091304)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AUTOMOTIVE ENGINEERING (090200) > Automotive Safety Engineering (090204)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > OTHER ENGINEERING (099900) > Engineering not elsewhere classified (099999)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Interdisciplinary Engineering not elsewhere classified (091599)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2009 QUT and Department of Transport and Main Roads
Copyright Statement: The authors have expressed their moral and legal rights under the relevant Acts.
Deposited On: 23 Oct 2009 12:21
Last Modified: 10 Jun 2010 00:06

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