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Mathematical modeling and control of active suspension system for a quarter car railway vehicle

Ahmed, M. I and Md Yusof, Hazlina and Rashid, M. M (2016) Mathematical modeling and control of active suspension system for a quarter car railway vehicle. Malaysian Journal of Mathematical Sciences, 10 (S) (Part II). pp. 227-241. ISSN 1823-8343

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Abstract

Active suspension is a term where active components are incorporated in a mechanical suspension system. Compared to passive suspension, the active suspension provides improved feature of suspension in terms of ride quality and vehicle handling. While the passive suspension consists of spring and dampers, the active suspension comprises of sensors, actuators and controller with passive system. The actuator in the active suspension provides forces to the suspension which eventually improves ride performance and comfort.This paper presents the early stage of modeling an active suspension of a railway vehicle. The mathematical model of the system is demonstrated and the early suspension control of the vehicle is introduced. As a start only the quarter car vehicle is considered and tested upon random or irregular track input at a speed of 31 m/s. The skyhook control strategy is introduced to the suspension, making it an active system. The performance is then compared to the passive. Preliminary results have shown that the active suspension improves ride quality by reducing the vehicle body accelerations and suspension deflections.

Item Type: Article (Journal)
Additional Information: 4487/50690 Special Issue: The 3rd International Conference on Mathematical Applications in Engineering 2014 (ICMAE’14)
Uncontrolled Keywords: Active suspension, Skyhook control, Railway vehicle modeling, Non-linear system, Mathematical modeling
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA1001 Transportation engineering (General)
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User: Dr Muhammad Rashid
Date Deposited: 15 Jun 2016 10:02
Last Modified: 09 Jan 2017 11:40
URI: http://irep.iium.edu.my/id/eprint/50690

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