FIGURE 11 Backplate modified by adding stiffening ridges and a central raised portion, which reduced squeal by 6.5 dB at low frequency (820–990 Hz) and 4.8 dB at high frequency (1681–1888 Hz). FIGURE 12 Squeal histogram for a vehicle test on a chassis dynomometer.

DOI link for FIGURE 11 Backplate modified by adding stiffening ridges and a central raised portion, which reduced squeal by 6.5 dB at low frequency (820–990 Hz) and 4.8 dB at high frequency (1681–1888 Hz). FIGURE 12 Squeal histogram for a vehicle test on a chassis dynomometer.

FIGURE 11 Backplate modified by adding stiffening ridges and a central raised portion, which reduced squeal by 6.5 dB at low frequency (820–990 Hz) and 4.8 dB at high frequency (1681–1888 Hz). FIGURE 12 Squeal histogram for a vehicle test on a chassis dynomometer.