Model of coherence function of road unevenness in parallel tracks for vehicle simulation
by Peter Múčka
International Journal of Vehicle Design (IJVD), Vol. 67, No. 1, 2015

Abstract: The coherence function between road elevations of two parallel road tracks was identified. In total, 3492 road records were analysed. The mean empirical unbiased squared coherence function was fitted using 11 different analytical models. The best results were obtained for the Ammon and Bormann model and rational function. The goodness-of-fit was markedly improved in comparison with other currently used models (isotropic, exponential, quadratic, etc.). The results distinguish between asphalt concrete and cement concrete road surfaces. The influences of local road features (bumps, potholes, vertical faults, joints, etc.) and the road profile data pre-processing (low pass filtration and sampling interval) on the coherence function were analysed and found to have negligible effect.

Online publication date: Mon, 22-Dec-2014

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Vehicle Design (IJVD):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com