ABSTRACT
Murakami, Tsudada, and Kitamura [13] reported on a finite element analysis of automotive disk brakes to compare the calculated resonance frequencies with previous measurements of brake squeal on a chassis dynamometer and to associate them with calculated deformation of the brake components. Secondary low-frequency squeal from 2 to 3 kHz and primary high-frequency squeal from about 5.5 to 10.5 kHz, as shown in the histogram in Figure 12, correlated well with the clustering of frequencies found for the brake disk, cylinder, pad, and torque member, shown in Figure 13. Calculated disk and caliper frequency modes where verified by holographic interferometry and by accelerometer measurements in the case of the caliper, or cylinder.
