Browse Publications Technical Papers 2016-01-1921
2016-09-18

An Experimental Study of Disc 1st In-Plane Mode which induced Brake Squeal 2016-01-1921

Brake squeal noise is generally classified into two vibration modes of disc. One is called “out-of plane mode” which vibrates in disc’s out-of-plane direction. The other is “In-plane mode” which vibrates in disc’s in-plane direction, it means the disc is contracted partially or is extended. There are few “In-plane noise” analysis reports from Disc pad standpoint, so it has been unclear how disc pad contributes to “In-plane mode” until now.
This paper confirms that we successfully analyzed direct pad vibration mode by laser scanning under in-plane mode condition.
Based on these results, we assume that pad stiffness affected in-plane mode and carried out validation tests.

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