Questions tagged [system-modeling]

Questions regarding the system modeling functionality of the Wolfram Language.

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5
votes
1answer
94 views

Why is a Boolean output not given as True/False by SystemModelSimulate?

Bug introduced in 11.3 and fixed in 12.1 I am a bit surprised that I am not getting a boolean output for the following simple Modelica model: ...
-4
votes
1answer
79 views

3D Plotting and optimising on the surface area of a spherical gyroid [closed]

*this is an equation of a shperical gyroid emphasized texti want to plot it in mathematica and obtain the shapes like those on the picture below. sinxcosy + sinycosz + sinzcosx = 0 i also want to ...
7
votes
1answer
171 views

Mathematica NDSolve for DAE and System Modeling

I'm a student for HVAC engineering and I've been using Mathematica for my study (mostly differential-algebraic equation system or Finite-Element-Analysis) and my hobby project for years. I really ...
4
votes
1answer
99 views

How to enter vector inputs in SystemModelSimulate?

A support case with the identification [CASE:4272760] was created. I am having some difficulties to provide vector inputs for a Modelica model using Mathematica. ...
3
votes
1answer
56 views

Can custom “operator records” be defined and used in Wolfram System Modeler (and the WL)?

From an answer to a Modelica-related question on SO I learned about the possibility to overload operators in Modelica by using spezialized class operator record. Looking into the Modelica specs for ...
0
votes
0answers
73 views

Recommended model for hysteresis

I have a fabric-based strain sensor and would like to find out what other recommended models can be used in the hysteresis modelling. I have tried using the cubic function for loading and unloading ...
4
votes
1answer
95 views

Why does SystemModelSimulate not simulate a model when parameters and inputs are changed within a single association?

A support case with the identification [CASE:4265480] was created. I am a bit confused about the following behavior in Mathematica 12.0 (Windows 64) simulating a very simple Modelica model using <...
3
votes
1answer
60 views

Why will functions from the SystemModelConfiguration` package not evaluate?

A support case with the identification [CASE:4155306] was created. According to the tutorial Compiler for System Modeling I should be able to verify the installation of a C++ compiler for the system ...
14
votes
3answers
4k views

How to do System Dynamics simulations / diagrams in Mathematica?

System Dynamics is an approach to understanding the behaviour of complex systems over time. It deals with internal feedback loops and time delays that affect the behaviour of the entire system. What ...
42
votes
1answer
962 views

In what way can M11.3's system modelling features be used by those who don't have SystemModeler?

Mathematica 11.3 includes some functionality from SystemModeler, but not the full SystemModeler environment. I assume that most people here are familiar with Mathematica, but not SystemModeler, or ...
13
votes
2answers
903 views

Can Wolfram System Modeler models be published in CDFs?

Is it possible to publish or distribute Models generated with WSM in CDF format (to interested people that do not have Mathematica and/or WSM)