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Semi-active ride comfort evaluation of heavy vehicles using a hybrid dynamic model

Saeedi, K, Fallah, MS and Bhat, RB (2010) Semi-active ride comfort evaluation of heavy vehicles using a hybrid dynamic model

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Abstract

In this paper, the driver ride comfort in a heavy vehicle (city bus) is studied under the sky-hook semi-active damping force policy. A new hybrid dynamic model composed of a continuous system and a discrete system are integrated in the current work. The chassis of the vehicle is assumed as the continuous beam supported on the discrete suspension springs and dampers. The driver and the seat are also considered as a discrete vibrating system. The dynamic equations are solved by using the assumed mode method, where the mode shapes of a free-free beam have been employed. The results of the semi-active system are compared with those of the passive one through simulations. The results indicate that the new hybrid dynamic model represents more degrees-of-freedom of the system for driver ride analysis compared to the discrete model. In addition, the results show that the semi-active system has a superior performance in terms of the ride comfort. Copyright © 2010 SAE International.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Authors :
NameEmailORCID
Saeedi, KUNSPECIFIEDUNSPECIFIED
Fallah, MSUNSPECIFIEDUNSPECIFIED
Bhat, RBUNSPECIFIEDUNSPECIFIED
Date : 1 December 2010
Identification Number : https://doi.org/10.4271/2010-01-0718
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:50
Last Modified : 17 May 2017 12:50
URI: http://epubs.surrey.ac.uk/id/eprint/836914

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