[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example Eigen-13: Eigenvalue analysis of cantilever cylindrical vault [ Midas Gen 验证实例 Static-13: 圆柱形拱顶特征值分析]

【1】Problem Description ( Midas Gen’s Verification Examples Static-13:  Eigenvalue analysis of cantilever cylindrical vault)

【2】MODEL Properties

Dimension
Radius 0.6096 m

Element
Plate element

Material
Modulus of elasticity E = 2.0658×10 5 MPa
Poisson’s ratio ν = 0.3
Weight density γ = 7.857 tf/m 3

Sectional Property
Radius 0.6096 m, thickness 3.048×10 -3 m

Boundary Condition
Node 1~41: Constrain all DOFs

【3】Midas Gen Model

【4】Midas 2 Abaqus Model

【5】Abaqus Model

【6】Comparison of Results

(1)Midas Gen Mode1

(2)Midas Gen Mode2

(3)Midas Gen Mode3

(4)Abaqus Mode1

(5)Abaqus Mode2

(6)Abaqus Mode3

Frequency (rad/sec)
Mode Theoretical MIDAS/Gen Abaqus
1st 85.6 86.571 85.741
2nd 134.5 138.663 138.27
3rd 259 250.98 246.85
4th 351 345.579 342.11
5th 395 390.471 385.74
6th 531 535.235 529.54

(7)Comparison of Frequencies 


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