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time dependend and parametric solution?

Posted Apr 22, 2010, 4:00 a.m. EDT 2 Replies

Sabine Kling
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Hi,

is it possible to solve for parameters and time dependend at the same time?
I'd like to model a viscoelastic material and apply a pulsed force. How could I implement this?

Thanks in advance.
Sabine
2 Replies Last Post Apr 22, 2010, 11:54 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Apr 22, 2010, 7:54 a.m. EDT
Hi

I woul suggest that you take a look at setting the solver in transient mode and check the use of the the "Solve - parametric sweep" this will generate a series of files for each parametric step

Hve fun Comsoling
Ivar
Hi I woul suggest that you take a look at setting the solver in transient mode and check the use of the the "Solve - parametric sweep" this will generate a series of files for each parametric step Hve fun Comsoling Ivar
Sabine Kling
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Posted: 1 decade ago Apr 22, 2010, 11:54 a.m. EDT
Hi,

thanks. Yes, the idea sounds good.
But how can I access the data when I export the fem-structure to Matlab? (Unfortunately I didn't find anything about that in the documentation.)

And a further question: Did I understand it right, that if I use the parametric sweep, I will get the whole time analysed for each parameter step?

Then the single steps would be totally independed of the previous/next step, wouldn't it?
However I'd like to do the parameter - time combination, because I'd like to see the effect of the former parameter step to a new force pulse. Is this possible?

Regards, Sabine
Hi, thanks. Yes, the idea sounds good. But how can I access the data when I export the fem-structure to Matlab? (Unfortunately I didn't find anything about that in the documentation.) And a further question: Did I understand it right, that if I use the parametric sweep, I will get the whole time analysed for each parameter step? Then the single steps would be totally independed of the previous/next step, wouldn't it? However I'd like to do the parameter - time combination, because I'd like to see the effect of the former parameter step to a new force pulse. Is this possible? Regards, Sabine

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