Jeff Hiller
COMSOL Employee
Please login with a confirmed email address before reporting spam
Posted:
2 years ago
17 feb 2023, 15:19 GMT-5
Hello Etienne,
In an eigenfrequency analysis, the magnitude of the eigenmodes is meaningless. Oscillation of the eigenmodes is, of course, sinusoidal.
Best regards,
Jeff
-------------------
Jeff Hiller
Hello Etienne,
In an eigenfrequency analysis, the magnitude of the eigenmodes is meaningless. Oscillation of the eigenmodes is, of course, sinusoidal.
Best regards,
Jeff
Dave Greve
Certified Consultant
Please login with a confirmed email address before reporting spam
Posted:
2 years ago
18 feb 2023, 18:24 GMT-5
Viesing the magniduet of the displacement is not very helpful because one cannot distinguish between positive and negative values.
The most useful plot is a distorted shape plot, which provides a snapshot of the displacements at one time. A animation using dynamic data extension can also be useful for visualization.
Since the displacements are phasors, the displacement as a function of time is real(phasor*e^jwt).
Viesing the magniduet of the displacement is not very helpful because one cannot distinguish between positive and negative values.
The most useful plot is a distorted shape plot, which provides a snapshot of the displacements at one time. A animation using dynamic data extension can also be useful for visualization.
Since the displacements are phasors, the displacement as a function of time is real(phasor*e^jwt).