Study on Low Speed Judder of Wave Type Brake Discs for Motorcycles Doshisha University

Format:

Conference/Event

Author/Creator:

Obunai, Kiyotaka, author.

Conference Name:

Small Engine Technology Conference & Exposition (2006-11-13 : San Antonio, Texas, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2006

Summary:

This study discussed the mechanism of the low speed judder for wave type brake disc developed newly for recent motorcycles. Wavy disc was examined to investigate the effect of wave configurations on the BTV (Brake Torque Variation) behavior. Torque amplitude in braking was compared with respect to the revolution order which represented the multiple number of the number of revolutions. To explain the mechanism at the mode showing largest BTV, the elastic deformation of the pad was analyzed by finite element method concerning geometrical nonlinearity with commercial code. This study found that most crucial BTV appeared on low speed judder was observed at the 3 rd peaks on the revolution order. Test data showed that this crucial BTV was related with the number of waves at the disc periphery, and caused by the indentation of the pad into notched part at disc periphery. Finally, current paper proposed an effective model to predict the amplitude at high order of BTV calculating with the indentation of the pad and the line pressure. The amplitude at high order of BTV can be predicted with the indentation of the pad and the line pressure

Notes:

Vendor supplied data

Publisher Number:

2006-32-0026

Access Restriction:

Restricted for use by site license