Research Article

Musical Tone Law Method for the Structural Damage Detection

Table 3

Natural frequencies of both shells.

Test cases1st order2nd order3rd order4th order5th order6th order7th order8th order9th order10th order

Intact shell5.2514.0026.0040.7557.5077.6397.75120.88145.00171.75
Damaged shell4.7511.3824.0035.8858.8875.2594.75117.63141.75160.75