Effect of Compressive Strain of Brake Pads on Brake Noise

Table 5

Number of noisy modes in Groups A-D and the corresponding TOI.

Thickness variation Δd (μm)	Number of noisy modes				TOI
	Group A	Group C	Group C	Group D	Group A	Group C	Group C	Group D
85	3	3	3	3	38.85	38.85	38.85	38.85
90	3	2	1	1	41.59	30.88	30.88	28.25
95	3	2	1	1	46.44	29.37	29.37	27.01
100	3	2	3	3	51.13	32.49	32.49	28.74
105	3	2	3	2	56.67	30.10	30.10	33.54
110	5	2	2	2	58.04	27.72	27.72	35.64
115	6	2	3	3	60.96	30.53	30.53	34.52
120	4	2	3	2	52.24	32.74	32.74	30.12
125	3	1	3	1	56.13	28.47	28.47	21.41
130	3	1	3	1	56.59	26.12	26.12	18.62
135	3	1	2	1	64.08	25.45	25.45	15.91