This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Effect of Grease on Brake Squeal
Technical Paper
2014-01-2512
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
SAE J2521 noise tests are conducted to examine the impact of shim and grease on brake squeal generation. The impact of adhesive (bonded) shim, clip-on shim and grease for noise generation are examined. Low frequency squeal is eliminated by the application of grease on both adhesive (bonded) shims and clip-on shims. The role of shim and grease for reducing brake squeal is discussed. Adhesive (bonded) shims were found to be effective for high frequency squeal (pad bending mode) by increasing damping. Grease is effective for low frequency squeal (pad rigid mode). The mechanism to eliminate low frequency squeal by the application of grease is investigated. Friction between the shim and caliper piston/finger is reduced. Pads contact directly to the anchor bracket. As a result the contact stiffness is increased. The mechanism is confirmed by experiments.
Recommended Content
Authors
Topic
Citation
Shimizu, H., Oura, Y., Suzuki, T., and Sano, Y., "The Effect of Grease on Brake Squeal," SAE Technical Paper 2014-01-2512, 2014, https://doi.org/10.4271/2014-01-2512.Also In
References
- Lewis , T. and Shah , P. Analysis and Control of Brake Noise SAE Technical Paper 872240 1987 10.4271/872240
- Hoffman , C. Damper Design and Development for Use on Disc Brake Shoe and Lining Assemblies SAE Technical Paper 880254 1988 10.4271/880254
- Flint , J. A Review of Theories on Constrained Layer Damping and Some Verification Measurements on Shim Material SAE Technical Paper 2003-01-3321 2003 10.4271/2003-01-3321
- Flint , J. , McDaniel , J. , Li , X. , Elvenkemper , A. et al. Measurement and Simulation of the Complex Shear Modulus of Insulators SAE Technical Paper 2004-01-2799 2004 10.4271/2004-01-2799
- McDaniel , J. , Li , X. , Elvenkemper , A. , Wegmann , E. et al. Simulating the Effect of Insulators in Reducing Disc Brake Squeele SAE Technical Paper 2005-01-3944 2005 10.4271/2005-01-3944
- Griffen Christopher Brake insulator development: Thermal and structural dynamic semi-empirical design guidance/data synthesis methods
- Ichiba , Y. and Nagasawa , Y. Experimental Study on Disc Brake Squeal SAE Technical Paper 930802 1993 10.4271/930802
- Kumamoto , F. , Kawai , K. , and Baba , H. A Study on Relationship between Pad Restraint Condition and Brake Squeal Generation SAE Technical Paper 2004-01-2801 2004 10.4271/2004-01-2801
- Kurita , Y. , Matsumura , Y. , Ito , A. , Tamura , T. and Oura , Y. Squeal Vibration in Disk Brake Transactions of the Japan Society of Mechanical Engineers 70 694 2004 1609 1615
- Oura , Y. , Kurita , Y. , Matsumura , Y. , and Nishizawa , Y. Influence of Distributed Stiffness in Contact Surface on Disk Brake Squeal SAE Technical Paper 2008-01-2584 2008 10.4271/2008-01-2584
- OURA Yasunori , KURITA Yutaka , MATSUMURA Yuichi and TAMURA Tsutomu Surface Contact Analysis Model of Disk Brake Squeal Journal of Environment and Engineering 4 1 222 233 2009
- OURA Yasunori , KURITA Yutaka and MATSUMURA Yuichi Influence of Dynamic Stiffness in Contact Region on Disk Brake Squeal Journal of Environment and Engineering 4 2 234 244 2009