Moments of Inertia of Mounted and Unmounted Passenger Car and Motorcycle Tires

900760

02/01/1990

Event
International Congress & Exposition
Authors Abstract
Content
The mass moments of inertia of 44 mounted and unmounted passenger, racing and motorcycle tires were measured about the spin axis. In addition, for some of the unmounted tires, mass moment of inertia about an axis perpendicular to the spin axis was also measured. Simplistic models for calculation of tire mass moment of inertia were developed, and may be adequate if only approximate results are required. Following measurement of inertias using a torsional pendulum technique, linear correlation of inertia values with tire weight and diameter was performed. A simple pair of linear correlation equations (one for mounted tires, one for unmounted tires) gives highly accurate values for mass moment of inertia about the tire spin axis. Finally, a rule of thumb expression for estimating moment of inertia about a vertical axis was also developed.
Meta TagsDetails
DOI
https://doi.org/10.4271/900760
Pages
9
Citation
Metz, L., Akouris, C., Agney, C., and Clark, M., "Moments of Inertia of Mounted and Unmounted Passenger Car and Motorcycle Tires," SAE Technical Paper 900760, 1990, https://doi.org/10.4271/900760.
Additional Details
Publisher
Published
Feb 1, 1990
Product Code
900760
Content Type
Technical Paper
Language
English