Research Article

Impact Analysis of Brake Pad Backplate Structure and Friction Lining Material on Disc-Brake Noise

Table 7

Comparison of critical modal frequencies between slotted backplate and unslotted backplate.

OrderModal frequency (Hz)
UnslottedSample 1Sample 2Sample 3Sample 4Sample 5

13,276.53,257.53,240.83,2143,208.63,180.3
24,101.74,064.94,046.24,010.24,031.23,997.4
36,660.26,623.66,589.36,546.76,580.56,578
47,379.47,133.67,045.96,923.67,039.76,960.4
512,04812,01112,00011,91411,87211,825
612,89113,06012,58512,12112,77612,711