【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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