Research Article

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

Table 3

The first four antiresonance frequencies of different driving points (j = 1, 2, …, 10) for undamaged 10-cell periodic rubber–steel structure.

Order (n)

1318.5167358.2907409.4071477.5191572.7775715.4009817.0391715.4009636.2086572.7775
2952.18731070.03561220.89732320.48511140.5367952.1873952.18732102.02591265.43681140.5367
31574.75131765.43901878.67292738.61281697.05841878.67291618.53642738.61281878.67291697.0584
42175.43602427.57322006.84873123.58742233.74962102.02592381.86693300.16762462.91912233.7496