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Technical Briefs

Tire Damping Effect on H2 Optimal Control of Half-Car Active Suspensions

[+] Author and Article Information
Semiha Türkay

Department of Electrical and Electronics Engineering, Anadolu University, 26470 Eskişehir, Turkeysemihaturkay@anadolu.edu.tr

Hüseyin Akçay1

Department of Electrical and Electronics Engineering, Anadolu University, 26470 Eskişehir, Turkeyhuakcay@anadolu.edu.tr

1

Corresponding author.

J. Vib. Acoust 132(2), 024502 (Mar 15, 2010) (5 pages) doi:10.1115/1.4000767 History: Received June 23, 2008; Revised October 17, 2009; Published March 15, 2010; Online March 15, 2010

In this note, the root-mean-square response of a half-car model following a random road profile is studied. Road excitation at the front wheel is modeled by a first-order linear shape filter driven by white-noise and the temporal correlation between the front and the rear wheels is predicted by a second-order Pade filter. It is demonstrated that the effect of tire damping on the rms response of actively controlled half-car suspension system can be significant, in particular, at high vehicle velocities.

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Copyright © 2010 by American Society of Mechanical Engineers
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References

Figures

Grahic Jump Location
Figure 1

The half-car model of the vehicle

Grahic Jump Location
Figure 2

The optimized performance index scaled by the open-loop performance index as a function of tire damping coefficient for different vehicle velocities and Λ=I6

Grahic Jump Location
Figure 3

The optimized performance index scaled by the open-loop performance index as a function of tire damping coefficient for different vehicle velocities and Λ=diag(10I2,100I2,I2)

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