Clark, JMC and Smith, MC (2012) Power absorption invariance for brownian spring forcing. Proceedings of the IEEE Conference on Decision and Control. pp. 4396-4399. ISSN 0191-2216Full text not available from this repository.
In  it was shown that, for a standard quarter-car vehicle model and a road disturbance whose velocity profile is white noise of intensity A, the mean power dissipated in the suspension is equal to kA/2 where k is the tyre vertical stiffness. It is remarkable that the power dissipation turns out to be independent of all masses and suspension parameters. The proof in  makes use of a spectral formulation of white noise and is specific to linear systems. This paper casts the result in a more general form and shows that it follows from a simple application of Ito calculus. © 2012 IEEE.
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