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http://dx.doi.org/10.3795/KSME-A.2014.38.12.1351

Numerical and Experimental Analysis for Disc Brake Squeal Induced by Caliper Mode  

Choi, Hoil (Div. of Mechanical and Automobile Engineering, Kongju Nat'l Univ.)
Kang, Jaeyoung (Div. of Mechanical and Automobile Engineering, Kongju Nat'l Univ.)
Gil, Hojong (Div. of Mechanical and Automobile Engineering, Kongju Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.38, no.12, 2014 , pp. 1351-1358 More about this Journal
Abstract
This study numerically simulates brake squeal and validates it experimentally by using a lab-scaled brake dynamometer. The system frequencies of the disc brake are traced with respect to the brake pressure by using a modal test and FEM. Then, the squeal frequencies measured from the brake dynamometer are found to correspond to the brake system mode with the dominant displacement of the caliper and pad. Furthermore, a complex eigenvalue analysis conducted using the finite element model confirms that the caliper mode generating the rotational displacement of the pad becomes unstable owing to the negative friction-velocity slope.
Keywords
Frequency Response Function; Complex Eigenvalue Analysis; Brake Squeal; Friction Curve;
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Times Cited By KSCI : 5  (Citation Analysis)
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