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applyingfrequency

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can i directly apply frquency to the model? how?

1 Reply Last Post Jun 20, 2012, 3:31 p.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

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Posted: 1 decade ago Jun 20, 2012, 3:31 p.m. EDT
Hi

it depends what you want to do: if you want to analyse a transient situation you should use a time stepping and define your loads or other BC's with a time varying equation.

but if you have a steady state oscillation (harmonic response) use the frequency domain solvers which does a development in omega and omega square, you define the frequency or frequency span/range in the solver setting.

Check the equations to understand how the equations look like in time series and frequency sweep solver modes

--
Good luck
Ivar
Hi it depends what you want to do: if you want to analyse a transient situation you should use a time stepping and define your loads or other BC's with a time varying equation. but if you have a steady state oscillation (harmonic response) use the frequency domain solvers which does a development in omega and omega square, you define the frequency or frequency span/range in the solver setting. Check the equations to understand how the equations look like in time series and frequency sweep solver modes -- Good luck Ivar

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