High Frequency Brake Squeal Prediction Index for Disc In-plane Mode

2009-01-2102

05/19/2009

Event
SAE 2009 Noise and Vibration Conference and Exhibition
Authors Abstract
Content
As well as performance and safety, sensibility factor such as brake squeal noise has become an important factor to consider in today’s automotive industry. However, regardless of its importance, reduction of brake squeal noise has remained as one of the biggest challenges that have not yet been solved. Recently, many studies are being conducted to reduce squeal noise with the development of numerical analysis using FEM(Finite Element Method). This paper deals with complex eigenvalue analysis with commercial software program ABAQUS to resolve the squeal noise related to disc in-plane mode which is reported to occur frequently in the squeal noise frequency band 1~20kHz. As the reliability of the FE model is the most critical factor in numerical analysis, the FE model is first correlated with FRF modal test of each brake part and measurement of material property of pad with the anisotropic character through ultrasonic methods. To reduce squeal noise related to disc in-plane mode, complex eigenvalue analysis was conducted for several vehicles and the applied results were classified to find out the overall tendency. Additionally, squeal prediction index was made based on the analysis result that has a coupling relationship between disc IPC(In-Plane Circumferential) mode and IP(In-Plane) modes of the pad and the disc in the vicinity of the frequency to avoid squeal noise in the early design stage.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-01-2102
Pages
7
Citation
Joo, S., Han, J., Kim, J., and Park, K., "High Frequency Brake Squeal Prediction Index for Disc In-plane Mode," SAE Technical Paper 2009-01-2102, 2009, https://doi.org/10.4271/2009-01-2102.
Additional Details
Publisher
Published
May 19, 2009
Product Code
2009-01-2102
Content Type
Technical Paper
Language
English