Mode shape | ANSYS | Chopra | Error (%) | Hong | Error (%) |
Mode 1 | 27.516 | 26.268 | 4.53 | 26.375 | 4.15 |
Mode 2 | 102.405 | 105.073 | −2.61 | - | - |
Mode 3 | 249.976 | 236.415 | 5.43 | - | - |
Mode 4 | 399.257 | 420.293 | −5.27 | - | - |