A Cyclosymmetric Beam Model and a Spring-Supported Annular Plate Model for Automotive Disc Brake Vibration

Table 3

Comparison of the predicted natural frequencies with the measured resonant frequencies of the small diameter annular plate.

Diametral mode	Cyclo-symmetric beam model, 𝑓calc.	Free-free plate model, 𝑓calc.	Measured, 𝑓meas.
𝑛	Hz	Hz	Hz
2	780	620	624
3	1750	1700	1696
4	3200	3200	3140
5	4950	5000	4912