벤틸레이티드 디스크 브레이크에서 공냉효과가 열변형 거동에 미치는 영향에 관한 수치적 연구

Numerical Study on the Thermal Distortions of Ventilated Disk Brakes Due to Air Cooling Effects

A coupled thermal-mechanical analysis has been presented for the thermal distortions of the ventilated disk brakes during IS braking operations. The FEM results show that the bendings and distortions of the disk toward the left side are decreased, but the sinusoidal distortion of the disk rubbing surface along the arc length of the vent hole is highly increased by increasing the convective air cooling effects, which is heavily related to the squeal, wear and micro-thermal crackings at the rubbing surfaces due to uneven dissipation rates of friction heatings.