Modal analysis of a rolling truck tyre subjected to inflation pressure and vertical deflection
by Shahram Shokouhfar; Subhash Rakheja; Moustafa El-Gindy
International Journal of Vehicle Systems Modelling and Testing (IJVSMT), Vol. 11, No. 2, 2016

Abstract: Modal analysis of a rolling truck tyre under inflation pressure and vertical deflection is conducted to determine its natural frequencies and mode shapes. A 3-D finite element model of a radial-ply truck tyre is used considering its multi-layered composite structure. The nonlinear effects of the inflation pressure, vertical load and rolling speed are incorporated in the analysis through an explicit dynamic simulation to determine the stress state throughout the tyre at instants when the modal characteristics are desired. The eigenvalues are subsequently extracted at three key moments when the tyre reaches the steady state after application of the inflation pressure, vertical deflection and rolling speed. For a deflected tyre, the conjugate mode frequencies, being identical for an inflated tyre, diverged to two different frequencies with one being lower and the other higher than the corresponding frequency of the tyre under inflation alone. The influences of the inflation pressure, vertical load and rolling speed on tyre natural frequencies are obtained through the development of a computationally efficient algorithm to automate the tyre model reformulations for parametric studies.

Online publication date: Fri, 22-Jul-2016

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 Systems Modelling and Testing (IJVSMT):
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