Mechanism Analysis of a Low-Frequency Disc Brake Squeal Based on an Energy Feed-In Method for a Dual Coupling Subsystem

Table 4

Feed-in energy of the dual coupling subsystem near 3000 Hz.

Pressure	Frequency (Hz)	Real part	Coupling system	Energy (N/m)
0.2	3024.5	87.619	Piston-caliper	143.39
			Disc-plate	468.08
0.4	3031.5	89.355	Piston-caliper	400.63
			Disc-plate	1500.00
0.6	3032.3	92.141	Piston-caliper	492.25
			Disc-plate	1700.00
0.8	3033.0	92.355	Piston-caliper	531.85
			Disc-plate	1900.00
1.0	3032.3	94.732	Piston-caliper	758.02
			Disc-plate	3100.00
1.2	3032.6	94.844	Piston-caliper	798.88
			Disc-plate	3350.00
1.4	3032.9	94.825	Piston-caliper	845.52
			Disc-plate	3700.00