Re: [Scilab-users] Xcos Loudspeaker simulation Algebraic loop and Bode plot

[Claus Futtrup]

Hi Florian

I loaded the zcos file this morning and compared it to Fig. 2.5 in the
Master Thesis. It looks like your Re-box is connected before the
integrator, which means it becomes omega-dependent. This is not what we
normally do. Did you intend it to be this way? I'm not sure this is
actually your problem - I'm just trying to help - and clear the path.

Best regards,
Claus

On Tue, Mar 6, 2018 at 8:40 PM, Claus Futtrup  wrote:

> Hi Florian
>
> I see it's a zcos file, but GMAIL downloads it as a zip file. I just
> rename it from zip to zcos, and it loads into Scilab. I'll look at it
> tomorrow. :-)
>
> Best regards,
> Claus
>
>
> On Tue, Mar 6, 2018 at 8:36 PM, Florent 
> wrote:
>
>> Hi Claus,
>>
>> No, unfortunately I didn't get the Simulink files. And we don't have
>> Simulink where I'm working.
>>
>> Here is the zcos file  linear_LS.zcos
>>   .
>>
>> I'm new to Xcos too, I started last week.
>>
>> Best regards,
>> Florent
>>
>>
>>
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Re: [Scilab-users] Xcos Loudspeaker simulation Algebraic loop and Bode plot

[Claus Futtrup]

Hi Team Scilab

I wish I could buy this book in English:
https://www.d-booker.fr/scilab-2-xcos/112-scilab-xcos.html

/Claus

I'm new to Xcos too, I started last week.
>
> Best regards,
> Florent
>
>
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Re: [Scilab-users] Xcos Loudspeaker simulation Algebraic loop and Bode plot

[Claus Futtrup]

Hi Florian

I see it's a zcos file, but GMAIL downloads it as a zip file. I just rename
it from zip to zcos, and it loads into Scilab. I'll look at it tomorrow. :-)

Best regards,
Claus


On Tue, Mar 6, 2018 at 8:36 PM, Florent  wrote:

> Hi Claus,
>
> No, unfortunately I didn't get the Simulink files. And we don't have
> Simulink where I'm working.
>
> Here is the zcos file  linear_LS.zcos
>   .
>
> I'm new to Xcos too, I started last week.
>
> Best regards,
> Florent
>
>
>
> --
> Sent from: http://mailinglists.scilab.org/Scilab-users-Mailing-
> Lists-Archives-f2602246.html
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> users@lists.scilab.org
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>
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Re: [Scilab-users] Xcos Loudspeaker simulation Algebraic loop and Bode plot

[Florent]

Hi Claus,

No, unfortunately I didn't get the Simulink files. And we don't have
Simulink where I'm working.

Here is the zcos file  linear_LS.zcos
  .

I'm new to Xcos too, I started last week.

Best regards,
Florent



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Re: [Scilab-users] Xcos Loudspeaker simulation Algebraic loop and Bode plot

[Claus Futtrup]

Hi Florent

I'm interested in the loudspeaker rmodel (I work in the loudspeaker
industry). The Master Thesis you're referencing to, it uses Matlab. Did you
get hold of the Matlab files? ... Are you simply taking some inspiration
from this Thesis and experimenting with XCOS?

I tried to download your zcos file, but it came as a ZIP file. When
extracted it contains a few files, but no ZCOS file. Appologies if I'm a
lost cause here, since I have no experience with XCOS, even basic stuff
might throw me off. Please explain.

Best regards,
Claus
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[Scilab-users] Xcos Loudspeaker simulation Algebraic loop and Bode plot

[Florent]

Good morning,

I'm attempting to make a Xcos version of a Simulink model of a loudspeaker
that I found on  Daniel San Ausín's Thesis (page 8)

 
. Please see the attached file for the signal flow chart.

 

It's "quite simple", just additions and multiplications.
The parameters Le, Re, Bl, Mms, Rms, Cms are the  Thiele & Small
   parameters of a
loudspeaker (it's just floating values).
The input voltage can be a sinus, a noise or whatever.

I'm getting a message error "Algebraic loop".
Do you know how to solve that ? I think it can be a problem in the
simulation setup as I'm new to Scilab/Xcos.

Here is the Xcos diagram:  linear_LS.zcos
  

I'm also trying to display the Bode plot at different stages of the diagram
that's why I'm using the CPGE toolbox.

If you have an idea to solve the problem, feel free to contact me.
You can answer in French.

 I'll also try a different approach with the state-space bloc.



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