This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Study on Low Speed Judder of Wave Type Brake Discs for Motorcycles
Technical Paper
2006-32-0026
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
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.
Recommended Content
| Technical Paper | Residual Brake Torque Measurement on Dynamometer in Terms of Wheel Load and Side Forces |
| Technical Paper | Dynamic Characteristics Analysis of Brake Pipings |
| Technical Paper | Virtual testing of brakes |
Authors
Citation
Obunai, K., Okubo, K., Fujii, T., and Nakatsuji, T., "Study on Low Speed Judder of Wave Type Brake Discs for Motorcycles," SAE Technical Paper 2006-32-0026, 2006, https://doi.org/10.4271/2006-32-0026.Also In
References
- Jacobson, H. Disc brake judder considering instantaneous disc thickness and spatial friction variation The Institution of Mechanical Engineers 2003
- Jacobson, H. Analysis of brake judder by use of amplitude functions Proceedings of SAE Noise and Vibration Conference Traverse City, Michigan 1999
- Jacobson H Aspects of disc brake judder The Institution of Mechanical Engineers 2003
- Toshikazu O. Kiyoshi H. Junji H. High Precision Brake Discs to Reduce Judder SAE 2005-01-3924
- Mitsuhiro I. Studies on Friction Materials of Automobiles JSME 85-1139
- Inoue H. Analysis of brake judder caused by thermal deformation of brake disc rotors Proceedings, 21 st FISTIA Congress Beigrade 1986 paper 865131
- Sawanobori T. Suehiro K. An analysis of clutch judder SAE paper 951318
- Sawanobori T. Hiroyuki Y. An analysis of clutch judder (Effect of Frictional Heating on Judder Phenomenon)
- Crowther A. Zhang N. Liu D.K. Jeyakumaran K. Analysi and simulation of clutch engagement judder and stick-slip in automotive power train systems The Institution of Mechanical Engineers 2004
- Yoshikazu G. Shinji S. Yoichi K. Development of the CLZ type Disc Brake Design Technology TOKICO REVIEW 2005
- Tomoji S. Kimiyasu K. Yukitoshi S. Youichi K. Development of Radial Mount Caliper for Two Wheeled Vehicles TOKIKO REVIEW 2005
- Kwangjin L. Barber J.R. An Experimental Investigation of Frictionally Excited Thermoelastic Instability in Automotive Disk Brakes Under a Drag Brake Application Journal of Tribology 1994