MapleSim Questions and Posts

These are Posts and Questions associated with the product, MapleSim

I am working on hybrid dynamical systems an encounter the warning: "dependencies in discrete equations cannot be ordered". What does this mean and should I care about it?

Like many in the technology industry, I am a big fan of science fiction films and I’ve written in the past about how exciting it is for me to have a job where science fiction and reality literally meet. Over the past few months, several key projects from various Maple and MapleSim users caught my attention for various reasons and once again, I was forced to giggle publicly as the shear cool factor of these applications overcame my normal mature demeanor.

I am looking to use MapleSim in my MSEE Thesis project. I need to capture input from a hardware system, then use that data to drive a model in MapleSim, using MapleSim as a 3D kinematic model.

I have been using Python for most of my work so far, so that would be a preferred language, but I am also comfortable with C++, it just takes longer.

I am brand new to MapleSim (I have not even received it yet), so if there are some documents you could point me to, then that would be just great!

I would like to know if it´s possible to generate a standalone .exe program based on Maplesim models, to be used out of maplesim and integrated with other tools i have.

I can use compilation in maplesim, but this just speed up the simulation, without giving to me a compiled external code.

I´m having to export maplesim modelica model to openmodelica environment, and generate an exe code there. the input and output parameters are transformed into text...

A new release of MapleSim is now available.

MapleSim 4.5 Highlights

  • Enhanced Modelica support, including the ability to access new collections of components using the Modelica import feature

  • Increased speed and modeling capabilities for continuous systems with discrete events. The enhanced engine handles a far greater class of these systems than earlier versions, and shows significant...

I built the shock model in MapleSim

model

then I got the response accleration

result

For this curve, I want to solve its fourier series in Maple.

Do it work?

thinks in advance.

this is the msim file

test.msim

I want to simulate the model as show in Fig.1 

Fig. 1

Its equation of movement is 

eq

and its mathematical solution can be caculate as Fig. 2

I made a model in MapleSim 4, and an error occurred after I pushed the
button of 'simulate the model'.Maplesim froze at the step named

'CreateDataRecord: using dsolve method=rosenbrock_dae'. But it was Ok

when this file was simulated in Maplesim 3.

 

Is here anybody met the same problem?


I made a model in MapleSim, and I want to analysis it in Maple.
But there was an error when I used the 'get equations' buttom.

and my piecewise equation is 

Is there any problem to this equation?
I really didn't know how to solve it.

In MapleSim, I need a half-sin signal source element.

Of couse, I yielded a half-sin puls by using the combination of 2 sine souce elements and add element.

But i think it is not the best way. I want to use custom element in Maple to create it,

but I don't know how to write the equation code in Maple.

Please help me.

thinks

On Tuesday August 10, 2010, the first meeting of an ad hoc group focused on exploring the use of MapleSim in the engineering curriculum met at McMaster University, Hamilton, Ontario, Canada.  Faculty from McMaster University, Kettering University, Lawrence Technical University, University of Waterloo, Ryerson University, University of Ontario Inst. of Technology, and the State University of New York (Buffalo and Binghamton).

The full-day workshop provided an ideal...

I don't quite understand about some parameters of flexible beam. Please introduce  briefly.
 
1. Truncation order of inertial terms
2. Truncation order of elastic coordinates
3. Number of elastic coordinates

I have tried to make a pendulum with flexible rod (see file and figure), but have faced a problem. How can I set the initial angle of the rod deviation from a local vertical (alpha)? TSDA does not give such possibility.


And the second question: how to measure this angle during motion, and also an angle of a body deviation relatively to a rod (psi)? Probes allow to measure only angular velocity. How to get an angles?

There is a example "3D rigid slider crank" in the MapleSim examples. Replace the "crank" and the "rod" with flexible beam, turn it into a flexible system, how to do that?

Thank you very much!

Thank you very much.
 
As you say, the rigid body frame components, can define the end points of the link. But what about "the flexible beam", how to define its endpoint? The "maplesim help"  say "the beam is straight and its neutral axis is aligned with the x axis of the primary frame", then its deformation is measured.  I think in a system, the flexible beam is used together with the rigid body frames, but it always point to the direction of the x axis,...

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