Title: Predicting HGV road loads from rig tests with inputs on one axle at a time

Authors: A. Best, A. Schlesinger

Addresses: Anthony Best Dynamics Ltd, Holt Road, Bradford on Avon, Wiltshire, BA15 lAJ, UK. ' Anthony Best Dynamics Ltd, Holt Road, Bradford on Avon, Wiltshire, BA15 lAJ, UK

Abstract: The paper describes an investigation into the possibility of predicting HGV road (pavement) loads at any speed on a road of known spectral density by measuring the transfer functions relating them to individual axle inputs. The transfer functions of an air-suspension bogie and a rubber walking-beam one were measured on a two-station electro-hydraulic rig, using a variety of input profiles. Two levels input were used in order to assess nonlinearity effects. Predictions using the transfer functions were compared with existing measurements taken on instrumented vehicles on a test track. The results are sufficiently promising for the method to merit further investigation.

Keywords: pavement damage; pavement loads; tandem axle; trailer; truck dynamics; HGV road loads; load prediction; road damage; heavy vehicles.

DOI: 10.1504/IJHVS.1996.054551

International Journal of Heavy Vehicle Systems, 1996 Vol.3 No.1/2/3/4, pp.55 - 79

Published online: 18 Jun 2013 *

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