Abstract
The capability to smooth down the road imperfections affects both the comfort and the road holding of the vehicle. Improving comfort means, basically, limiting the vertical acceleration fluctuations of the vehicle body and hence of passengers. Improving road holding means, among other things, limiting the fluctuations of the vertical force that each tire exchanges with the road. In this chapter suitable models for improving the comfort and/or the road holding of the vehicle are developed. Quite interestingly, it is shown that a well tuned vehicle should have proportional damping , although it appears that this aspect is not commonly taken into account in traditional vehicle dynamics. The benefits of inerter in a Formula car are also discussed in detail.
The original version of this chapter was revised: Belated corrections have been incorporated. The correction to this chapter is available at https://doi.org/10.1007/978-3-319-73220-6_12
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Notes
- 1.
Of course, we mean fluctuations due to road imperfections, not to load transfers.
- 2.
Let \(\omega _{u_1} < \omega _{u_2}\), then \(\omega _{u_1} < \omega _1\) and \(\omega _2 < \omega _{u_2}\). Moreover, \(\omega _{u_1} \omega _{u_2} = \omega _1 \omega _2\).
- 3.
- 4.
The two natural frequencies of this model are not, of course, the two natural frequencies of the quarter car model. Another look at Fig. 10.3 should clarify the matter.
- 5.
Other common names are motion centers or oscillation centers.
- 6.
Unfortunately, this physical interpretation often leads to the misconception that there are a front natural frequency and a rear natural frequency [6, p. 175].
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Guiggiani, M. (2018). Ride Comfort and Road Holding. In: The Science of Vehicle Dynamics. Springer, Cham. https://doi.org/10.1007/978-3-319-73220-6_10
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DOI: https://doi.org/10.1007/978-3-319-73220-6_10
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