TJ (s)

4.00

4.40

4.80

5.20

5.60

6.00

Frequency (Hz)

1.144

1.149

1.153

1.205

1.249

1.268

Damping ratio (%)

14.950

17.870

21.542

21.070

19.780

18.923

TJ (s)

6.40

6.80

7.20

7.60

8.00

Frequency (Hz)

1.285

1.295

1.302

1.309

1.310

Damping ratio (%)

17.844

17.029

16.399

15.782

15.445