Hi Guys,
I have just been looking at the tutorial ''Smitc solver – Eigenmodes of an elastic plate'' which seems to have run fine (I have the displacements for the 10 modes simulated) but I cannot find where the eigenfrequencies are displayed. Can you point me in their direction?
Thanks,
John
Smitc solver – Where are the Eigenfrequencies?

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Re: Smitc solver – Where are the Eigenfrequencies?
Hi John
ARPACK outputs by default the eigenvalues, lambda. For a typical equation these are related to the frequency f by lambda=(2*PI*f)^2. SaveScalars can output this directly to a given file when you reques 'Save Eigenfrequencies = Logical True'.
Peter
ARPACK outputs by default the eigenvalues, lambda. For a typical equation these are related to the frequency f by lambda=(2*PI*f)^2. SaveScalars can output this directly to a given file when you reques 'Save Eigenfrequencies = Logical True'.
Peter
Re: Smitc solver – Where are the Eigenfrequencies?
Hi,
I've been trying to save the eigenvalues but i've been unsuccessful. I have tried several time writing the commands in different places but ElmerSolver Crashes.
I wrote the following:
'Solver 2';
'Equation = SaveScalars';
'Exec Solver = After saving';
'Procedure = "SaveData" "SaveScalars"';
'Save Eigenfrequencies = Logical True';
'Filename = "Eigenvalues_name .dat"';
'End';
Is there something wrong? I could not manage to find a solution.
Thanks in advance
Supituki
I've been trying to save the eigenvalues but i've been unsuccessful. I have tried several time writing the commands in different places but ElmerSolver Crashes.
I wrote the following:
'Solver 2';
'Equation = SaveScalars';
'Exec Solver = After saving';
'Procedure = "SaveData" "SaveScalars"';
'Save Eigenfrequencies = Logical True';
'Filename = "Eigenvalues_name .dat"';
'End';
Is there something wrong? I could not manage to find a solution.
Thanks in advance
Supituki

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 Posts: 4173
 Joined: 22 Aug 2009, 11:57
 Antispam: Yes
 Location: Espoo, Finland
 Contact:
Re: Smitc solver – Where are the Eigenfrequencies?
Hi Supituki
I hope you wrote that to the solver input file (.sif) and without the special characters: ' and ;
Peter
I hope you wrote that to the solver input file (.sif) and without the special characters: ' and ;
Peter
Re: Smitc solver – Where are the Eigenfrequencies?
Hi,
i think it's a ElmerSolver bug, i'll commit a fix in a minute.
Juha
i think it's a ElmerSolver bug, i'll commit a fix in a minute.
Juha
Re: Smitc solver – Where are the Eigenfrequencies?
...done. The eigen values are also,btw., shown in the ElmerSolver terminal output.
Juha
Juha
Re: Smitc solver – Where are the Eigenfrequencies?
Hi
Thank you for your fast answer.
I'm using Elmer in Windows installed from the binary, and since I am working with a restricted computer, I cannot install "MinGW and MinSYS".
How often are the binaries in the SourceForge actualized?
Thanks for all
Supituki
Thank you for your fast answer.
I'm using Elmer in Windows installed from the binary, and since I am working with a restricted computer, I cannot install "MinGW and MinSYS".
How often are the binaries in the SourceForge actualized?
Thanks for all
Supituki
Re: Smitc solver – Where are the Eigenfrequencies?
This is an ancient post, but it is indeed possible to install MSYS2 on a Windows machine without admin privileges, as a portable package.