Questions tagged [system-modeling]

Questions regarding the system modeling functionality of the Wolfram Language.

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2
votes
1answer
86 views

Linear Quadratic Integrator

With a given linear drive system ...
1
vote
0answers
55 views

Having trouble moving program from python to Mathematica

I'm trying to move a Covid-19 model programmed in python to Mathematica and I can't figure out how to translate this segment of the code to Mathematica. ...
1
vote
1answer
23 views

Parallel generation of SystemModel

I notices that it takes quite a long time to generate a lot of models. Therefore, it occures to me that maybe parallelization would help. However, the following example keeps evaluating and never ...
5
votes
0answers
129 views

There seem to be severe issues with Mathematica 12.1 running System Modeler models and with WSM 12.1 itself on Windows 10

I am using Wolfram Mathematica 12.1 and the Wolfram System Modeler 12.1 on a Windows 10 (64 Bit) notebook. Pretty much exactly since yesterday (2020-04-10), I am experiencing severe and previously ...
-4
votes
1answer
88 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 know ...
7
votes
1answer
200 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 ...
0
votes
0answers
87 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
118 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. ...
5
votes
1answer
103 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
108 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

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 ...
3
votes
1answer
64 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 ...
42
votes
1answer
983 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
907 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)
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 ...