【1】Problem Description
A simply supported thin annular plate is analyzed to determine the first 10 natural frequencies. Determine the natural frequencies and mode shapes. ( This model is original come from Midas Gen Verification Example – Eigen-15. )
【2】Midas Gen Model
【3】Midas 2 Abaqus Model
【4】Abaqus Model
【5】Midas Gen Analysis Results
(1) Midas Gen Mode 1
(2) Midas Gen Mode 2
(3) Midas Gen Mode 4
(5) Midas Gen Mode 6
(6) Midas Gen Mode 7
【6】Abaqus Analysis Results
(1) Mode 1
(2) Mode 2
(3) Mode 4
(4) Mode 6
(5) Mode 7
【7】Comparison of Results
Frequency ( Unit: Hz)
| Mode | Theoretical | Midas Gen | Abaqus |
| 1 | 1.87 | 1.857 | 1.869 |
| 2、3 | 5.137 | 5.141 | 5.192 |
| 4、5 | 9.673 | 9.658 | 9.829 |
| 6 | 14.85 | 14.47 | 15.076 |
| 7 | 15.573 | 15.459 | 15.905 |
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