Shock and Vibration

Shock and Vibration / 2009 / Article

Open Access

Volume 16 |Article ID 607871 |

S.I. Ihsan, M. Ahmadian, Waleed F. Faris, E.D. Blancard, "Ride Performance Analysis of Half-Car Model for Semi-Active System Using RMS as Performance Criteria", Shock and Vibration, vol. 16, Article ID 607871, 13 pages, 2009.

Ride Performance Analysis of Half-Car Model for Semi-Active System Using RMS as Performance Criteria

Received25 Apr 2008
Accepted15 Oct 2008


The work aims to study the root mean square (RMS) responses to acceleration input for four state variables: the ms vertical acceleration, the ms pitch angular acceleration and the front and rear deflections of the suspensions. A half-car two degree-of-freedom model of semi-active control scheme is analyzed and compared with the conventional passive suspension system. Frequency response of the transfer function for the heave, pitch of the sprung mass and suspension deflections are initially compared and then mean square analysis is utilized to see the effect of semi-active scheme. Results indicate that significant improvements were achieved in the sprung mass heave and pitch responses using semi-active control scheme. However results for the rear and front suspension deflection show that there are limiting values of damping coefficient beyond which, the semi-active scheme becomes disadvantageous than the passive system.

Copyright © 2009 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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