Modal Analysis of Brake Pads with Various Slot Types

디스크 브레이크 패드의 마찰재 슬롯 형상에 따른 진동 모드

Disc brake squeal is caused by mechanical vibrations generated from friction force excitations exerted by the pad on the rotor. In order to understand the origin of these vibrations and to speed up the design, the characterization of the individual brake system components is desirable. In this paper, the results of modal analysis are presented in terms of several slot-type with free-free boundary conditions. Special attention is paid to variations of the natural frequency at each vibration mode as the result of modifying slot pattern.