MapleSim Questions and Posts

These are Posts and Questions associated with the product, MapleSim

I'm new here so apologies if the solution to this is is obvious.

I am getting the following message in Maplesim 3 when I try and run a simulation. At least I think it is an error message, could just be a statement?


Starting simulation...
Preparing model...
(in MapleSim:-Modelica:-Flatten) duplicate definition of `Main.Turbo.C`

Any tips on what this might mean would be appreciated as it means nothing to me...


I am working on the system model of an impulse radar.  My primer aim is to simulate the received signal. I use signal components and some simple elctrical circuits in the Maplesim model. First version of the system works fine, but I'd like to develop it.

I have the following problems:

- I don't find a way to put a time-delay in the system (in time-domain or in s-domain in the form of' *exp(-s*T)' )

- It seems to me that there is no direct way to add noise to the system (like Gaussian...)


I am new to Maplesim and I would like to multiply 2 voltage-time functions ( mixing in time-domain), but I have no succes with the (Mathematical-Operators-) Product component ( I can't connect it to the voltage sources). How can be done this? Thanks for your help in advance.


Sometimes it is necessary to distinguish between continuous, discrete and hybrid systems in MapleSim. One example is when you consider generating an S-function block for inclusion in Simulink models. Firstly, how are continuous, discrete and hybrid systems defined in MapleSim? Secondly, how can you confirm the type of a given system in MapleSim?

Any reference documentation would help.


I'm currently working on modelling a system for a design project, and I would like to incorporate my sensor's precision. If I wanted to measure an angle, but only to a precision of say, 0.3 degrees, would I have to build a custom component or is there some clever way to do this?


There is something profoundly satisfying when something that goes “viral” on the Web has some connection to your life. This happened recently when I and my colleagues were pointed towards a video of some laboratory robots that somehow drew almost a million views on YouTube alone. For an engineer,...

Dear all,

I'm stuck here with a parameter passing issue, I understand that the parameters I define are global to all items "below", incuding nested subsystems, this seems logical and works nicely in MapleSim.

Dear all

I get a nasty message when trying to "Analys" a module representing some hardware with an analog output clipping signal (standard MapleSim block): " ...cannot create DynamicSystems with Model that consists of bolean equations ..."

I have Maple 12, and not MapleSim.  Has anyone stumbled across something that "runs on top" of Maple that is similar to COMSOL Multiphysics that runs on top of MATLab?  I'd like to figure out (without writing the Maple code myself...) how to import some simple 3D geometries and run some (possibly symbolic, probably numeric) simulations of electromagnetic and heat flow phenomena.  COMSOL uses FEM.  Is this something MapleSim could do?  I don't need anything that'll do "real world" geometries (i.e.

Let say that I want two have two inputs nods that each should give a random variable and one node

that simply adds them together and plots the result. How could that be accomplished ?!


I have a very simple problem. How to create custum component similrar to real expresion block (this block doesn't accept piecewise function) who generates piecewice function f:=x->piecewise(x<=2,0,x>=2 and x<=6,exp(-2x),x>=6,0) on output and nothing on input. When I modificate algebraic equtation template and input piecewise function there is an eror who doesn't accept the syntax for piecewise.


Dear forum,

i have a MapleSim model that works flawlessly, no errors occur and the plot results are as expected. When i try to use a template however(Analysis, Equations), the following message pops up:

(in PiecewiseTools:-is) Wrong kind of Parameters in piecewise.


What could cause this ? Unfortunately, my model is not for the public yet, so i cannot show you the sheet.


Hints ?


assume we have a cooling box that we open for a time period delta t. The box may be opened on top, so no cold air gets lost. What is the best way to model this in Maplesim ? So far, i have a heat capacity as box model for the cold air in it. I modeled a constant negative signal   during the time window delta t  and connected  a prescribed heat flow component to it.


Is this a reasonable model  in the easiest case ?




have a look at this circuit, a simple Opamp-oscillator.  I can't get it to work with Maplesim, can someone show me how to simulate this ?

Btw it would be helpful if we could upload .msim files to mapleprimes. I renamed it to .doc, if you want the source.

Download 3795_oscillator1.doc
View file details





the implemented Power Sensor calculates the instantenious power, it just multiplies u(t) and i(t). What i need now is a device that gives me the average power, the sources all have periodic voltages/currents (most common case: sin shaped sources). I thought i could use the power sensor and integrate over a period, but i don't know how to  enter the upper time limit.


Thoughts ?

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