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Table 7 Eigenfrequencies given in [ Hz ] for the conform and the new method with the corresponding deviation in [%] for the elastomer thickness 3[cm]

From: A new mortar formulation for modeling elastomer bedded structures with modal-analysis in 3D

 

Elast 1

Elast 3

Elast 5

EW

Conform

New

% diff

Conform

New

% diff

Conform

New

% diff

 

method

method

 

method

method

 

method

method

 

1

46.873

46.828

0.096

42.043

42.282

0.568

29.716

30.419

2.367

2

51.223

51.504

0.549

47.783

48.655

1.825

36.608

37.718

3.033

3

60.827

61.081

0.416

50.929

51.658

1.432

37.274

39.155

5.047

4

76.991

78.028

1.347

65.466

68.104

4.031

48.848

51.360

5.143

5

103.857

104.722

0.833

88.359

89.365

1.139

76.357

76.166

0.251

6

138.595

139.275

0.491

101.474

103.915

2.406

79.253

79.477

0.283

7

151.783

152.988

0.794

119.491

121.222

1.449

84.601

88.684

4.826

8

153.680

156.466

1.813

119.571

127.398

6.546

103.182

102.752

0.416