Title: Semi-active suspension system simulation using Simulink

Authors: Sergey Abramov, Samjid Mannan, Olivier Durieux

Addresses: Department of Mechanical Engineering, Division of Engineering, School of Physical Sciences and Engineering, King's College London, London, WC2R 2LS, UK. ' Department of Mechanical Engineering, Division of Engineering, School of Physical Sciences and Engineering, King's College London, London, WC2R 2LS, UK. ' School of Science and Technology, Glyndwr University, Plas Coch, Mold Road, Wrexham, LL11 2AW, UK

Abstract: This paper describes a simulation design procedure aimed to achieve improved performance of the vehicle semi-active suspension. The issues related to the design of vehicle models with skyhook control are discussed. Three basic models with linear parameters are explained: quarter-, half- and full-car. The road profile is generated from a spatial power spectral density (PSD) to represent a typical road (based on ISO 8608 classification). The normalised root-mean-square values of sprung mass acceleration and tyre load forces are used to assess the vehicle ride comfort and handling performance based on five benchmark road profiles employed in industrial tests.

Keywords: active suspension; semi-active suspension; full-car model; road profile; simulation; ride comfort; handling performance; vehicle suspension; skyhook control; sprung mass acceleration; tyre load forces.

DOI: 10.1504/IJESMS.2009.027573

International Journal of Engineering Systems Modelling and Simulation, 2009 Vol.1 No.2/3, pp.101 - 114

Published online: 01 Aug 2009 *

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