Mode

Kraus [22] R/h = 10

Kraus [22]

R/h = 50

Ventsel et al. [35]

R/h = 200

Present theory R/h = 50

1

0.8060

0.7548

0.7441

0.7579

2

1.2054

0.9432

0.9281

0.9034

3

1.6179

1.0152

0.9693

0.9499

4

1.9051

1.1082

-

1.1089

5

2.7205

1.2523

-

1.2759

6

2.9301

1.4576

-

1.4723

7

4.0274

1.6558

-

1.6237

8

5.5142

1.7636

-

1.7634