Analysis Of The Effect Of Roundness On Drum Brake Squeal Using The Finite Element Method
Loading...
Date
2009-12
Authors
Mohd Yusuf, Zainal Nazri
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Brake squeal is associated with the dynamic instability of a coupled mode of
individual components of brake system. During the braking process, the
contact pressure along the friction material interface is not uniformly
distributed. Furthermore the effect of roundness on drum brake shows the
strong relation towards contact pressure distribution. In this research, the
effect of roundness on drum brake towards squeal propensity was studied. A
numerical modeling approach was developed to determine the dynamic
contact pressure distribution and subsequently to investigate the onset of
squeal in a drum brake system. The vibration characteristics were
determined by a complex eigenvalue analysis. Analysis showed that
changes in contact pressure distribution would change the center of pressure
between the leading edge and trailing edge of the brake shoe. The results
showed that instability occurred at 90, 180 and 270 degrees drum rotation.
The analysis showed that the leading shoe is dominating the instability rather
than the trailing shoe.
Description
Keywords
The Effect Of Roundness On Drum Brake Squeal , Finite Element Method