Re: SystemModeler Users?
- To: mathgroup at smc.vnet.net
- Subject: [mg129240] Re: SystemModeler Users?
- From: "John Reed" <88ka5qep88 at sbcglobal.net>
- Date: Tue, 25 Dec 2012 02:00:09 -0500 (EST)
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I have the trial version of SystemModeler. I'm trying to model a simple
electronic filter circuit. I was able to get a model working showing the
spectrum of this filter with Electronic Workbench in about 15 minutes. Then
I decided to try SystemModeler to see if it could also do this model. I was
hoping I could use some of the Mathematica manipulate and plot routines to
see how changing some of the components modified the spectrum. This has not
been easy and I have yet to get a spectrum out of it after several weeks of
trying. What one would normally do is to use a voltage source that sweeps
through a defined range of frequencies to get the spectrum. There is no
source like this in SystemModeler that I have been able to find, and I've
spent a lot of time looking. The closest I have gotten is to get a step
response which could be converted to a spectrum with a Fourier transform.
However, I don't see any way to get to a transform in SystemModeler. This
system is hard to use. It requires first setting up the model, then running
a simulation, then finally going into Mathematica. This is three different
programs. The routines in the Mathematica part seem to be limited. Maybe
there is a way to get the simulation into a useable form, but I'm running
out of patience. I don't plan to purchase this program.
"Comer Duncan" <comer.duncan at gmail.com> wrote in message
news:kb1e5u$oum$1 at smc.vnet.net...
> I bought SystemModeler a while back. I am wondering whether there are
> SystemModeler users on this general list? I have some questions about how
> to convert a Berkeley Madonna model to SystemModeler. When I asked
> Support at Wolfram I was told that I'd have to buy support if my question
> was coming more than 30 days after the purchase, which it definitely is.
> So, I am wondering whether anyone has looked into how to relate models in
> other formats to SystemModeler, since I guess it is ending up that I will
> need to do the conversion myself. Alas, I am a beginner.
> Thanks for your help. Also, I am interested in any ways users out there
> are using SystemModeler since such information is usually useful to become
> a better user of this software.
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