MaplePrimes - answers and comments on Question, What is the problem when in Dynamic systems maplesim cannot match the arguments to an appropriate system??

undefined terms

Joe Riel — Tue, 30 Oct 2012 07:54:33 Z

There are undefined terms in eq:

remove(type,eq,equation);
       [PropAgua, PropGases, CoefConvAgua, CoefConvGases]

Thanks

JotaTR — Thu, 01 Nov 2012 00:33:33 Z

Thanks i was forgetting to delete those equations. Now i am able to generate the component but when i simulate on maplesim i get an error saying:

Untitled1msim1437405835933810748.mo
(in MapleSim:-Modelica:-Flatten) tokenization error, on line 242: \"`\" unexpected
Simulation failed.

What is the problem? On modellica code the line 242 is:  '&rho;w3' = 1000 - .178e-1 * (Tw3 - 277.15) ^ 1.7;

Is there any problem with that notation?

Untitled1.msim

Thanks for the help

tokenization error

JotaTR — Thu, 01 Nov 2012 00:33:56 Z

Thanks i was forgetting to delete those equations. Now i am able to generate the component but when i simulate on maplesim i get an error saying:

Untitled1msim1437405835933810748.mo
(in MapleSim:-Modelica:-Flatten) tokenization error, on line 242: \"`\" unexpected
Simulation failed.

What is the problem? On modellica code the line 242 is:  '&rho;w3' = 1000 - .178e-1 * (Tw3 - 277.15) ^ 1.7;

Is there any problem with that notation?

Untitled1.msim

Thanks for the help

work-around

Joe Riel — Thu, 01 Nov 2012 06:25:06 Z

There is a bug in MapleSim's code that handles the parameters with "funny" names. To work-around it, do not create a parameter with a subscript that also uses non-alphabetic characters in the base (or subscript). Here you are using the typeset rho in the base of the subscripted name. I'll submit this bug to Maplesoft's bug tracker.

I locally fixed the Modelica that is generated [the problem lies not with the Modelica generated in the Custom Component template, but the modelica generated for the entire model]. Alas, that led to an inconsistent initialization problem. So there may be issues with the model itself, independent of this bug.

@Joe Riel Ok i will change it and

JotaTR — Thu, 01 Nov 2012 18:32:27 Z

@Joe Riel

Ok i will change it and give a look at the equations. Thank you very much.

Have a nice day