Damage Detection of Laminated Rubber Bearings Based on the Antiresonance Frequencies of Periodic Structure and Its Sensitivity Analysis

Table 2

Damage cases for the 10-cell periodic rubber–steel structure.

Cases	Case 1	Case 2	Case 3	Case 4	Case 5
Damage cell (k)	1	10	1, 10	2, 7, 10	2, 4, 6
Increase in shear modulus (ΔG/G)/%	5	5	5, 5	8, 2, 5	5, 5, 5