Citation

Barnett J. Highw. Res. Board bull. 1952; 51: 1-16.

Copyright

(Copyright © 1952, National Research Council (U.S.A.), Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

A theory is advanced for the reason for tire squeal when vehicles travel on curves. Vehicle tires rest on the pavement with a contact area generally oval in shape. With low-pressure tires the area is larger and the oval is longer for the same weight. As the tire proceeds around a curve, it can do so only by the contact area of the tire twisting around its center with the front end side slipping in one direction and the rear end side slipping in the other direction. The author believes that this side slipping of the ends of the contact area is the cause of tire squeal and not the lateral skidding of the tire as a whole. This theory fits the fact that low-pressure tires begin to squeal at a lower speed in traveling around a curve than high-pressure tires traveling on the same curve in that the side slipping of the ends of the contact oval increases rapidly in amount as the contact oval increases in length. Research is necessary to determine friction factors of impending skid.