Random vibration of vehicle with hysteretic nonlinear suspension under road roughness excitation

Hua, CR, Zhao, Y, Lu, ZW and Ouyang, H ORCID: 0000-0003-0312-0326 (2018) Random vibration of vehicle with hysteretic nonlinear suspension under road roughness excitation. ADVANCES IN MECHANICAL ENGINEERING, 10 (1). p. 168781401775122.

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RANDOM VIBRATION OF VEHICLE WITH HYSTERETIC NONLINEAR SUSPENSION UNDER ROAD ROUGHNESS EXCITATION（定稿）.docx - Author Accepted Manuscript
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Official URL: http://dx.doi.org/10.1177/1687814017751222

Abstract

<jats:p> The analysis of random vibration of a vehicle with hysteretic nonlinear suspension under road roughness excitation is a fundamental part of evaluation of a vehicle’s dynamic features and design of its active suspension system. The effective analysis method of random vibration of a vehicle with hysteretic suspension springs is presented based on the pseudoexcitation method and the equivalent linearisation technique. A stable and efficient iteration scheme is constructed to obtain the equivalent linearised system of the original nonlinear vehicle system. The power spectral density of the vehicle responses (vertical body acceleration, suspension working space and dynamic tyre load) at different speeds and with different nonlinear levels of hysteretic suspension springs are analysed, respectively, by the proposed method. It is concluded that hysteretic nonlinear suspensions influence the vehicle dynamic characteristic significantly; the frequency-weighted root mean square values at the front and rear suspensions and the vehicle’s centre of gravity are reduced greatly with increasing the nonlinear levels of hysteretic suspension springs, resulting in better ride comfort of the vehicle. </jats:p>

Item Type:	Article
Uncontrolled Keywords:	Hysteretic nonlinear, suspension, random vibration, pseudoexcitation method, equivalent linearisation
Depositing User:	Symplectic Admin
Date Deposited:	12 Mar 2018 09:10
Last Modified:	19 Jan 2023 06:38
DOI:	10.1177/1687814017751222
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3018879