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How to give sinusoidal voltage to a Piezoelectric material
Posted Nov 21, 2011, 3:15 p.m. EST 3 Replies
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Hi
i wanted to give a sinusoidal electric potential to a piezoelectric material.
As of now I tried giving a DC 100V by selecting the electric potential boundary condition under the electrostatics physics module.
I did see the option of sine source in --electrical circuits>voltage source, but i was not sure what node parameters to select and I end up having an error if I use the default values.
So, can anyone tell me which method should I follow, or to follow something else. Thank you.
i wanted to give a sinusoidal electric potential to a piezoelectric material.
As of now I tried giving a DC 100V by selecting the electric potential boundary condition under the electrostatics physics module.
I did see the option of sine source in --electrical circuits>voltage source, but i was not sure what node parameters to select and I end up having an error if I use the default values.
So, can anyone tell me which method should I follow, or to follow something else. Thank you.
3 Replies Last Post Jul 28, 2016, 6:14 p.m. EDT
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Posted:
1 decade ago
Hi
you have at least two ways:
1) you use a transient time dependent solver and write out the voltage or any excitation dependency as
V0*sin(2*pi*frew*t)
then wait quite some time to see the solver resolve this with a time stepping of at least 5*freq per second
2) you use the harmonic solver, based on a harmonic development of the physic equations. You define the excitation amplitude V0 and get out the amplitude or rms (pls check carefully the doc and the equations for the variable you are using) at a given frequency, in one solver step
--
Good luck
Ivar
you have at least two ways:
1) you use a transient time dependent solver and write out the voltage or any excitation dependency as
V0*sin(2*pi*frew*t)
then wait quite some time to see the solver resolve this with a time stepping of at least 5*freq per second
2) you use the harmonic solver, based on a harmonic development of the physic equations. You define the excitation amplitude V0 and get out the amplitude or rms (pls check carefully the doc and the equations for the variable you are using) at a given frequency, in one solver step
--
Good luck
Ivar
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Posted:
1 decade ago
Hi Ivar,
I tried the first suggested way and I think it worked. Thank you
I tried the first suggested way and I think it worked. Thank you
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Posted:
8 years ago
Hi
you have at least two ways:
1) you use a transient time dependent solver and write out the voltage or any excitation dependency as
V0*sin(2*pi*frew*t)
then wait quite some time to see the solver resolve this with a time stepping of at least 5*freq per second
2) you use the harmonic solver, based on a harmonic development of the physic equations. You define the excitation amplitude V0 and get out the amplitude or rms (pls check carefully the doc and the equations for the variable you are using) at a given frequency, in one solver step
--
Good luck
Ivar
Hi Ivar,
I am not sure that I completely understand the first method. So in component variables I set V0 to be 200 [V] and frew to be 36000 [Hz]. I copied and pasted the equation into the voltage in the electric potential BC in electrostatics and I have a time dependent solver set up (is that the same as transient?). So my time step should be 180000 [s] because that is 5 times my frequency?
Thank you,