SciML/ModelingToolkitStandardLibrary.jl

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A standard library of components to model the world and beyond

Stars: 171
Forks: 49
Open beginner issues: 0
Indexed issues: 47
Avg merge: 15h 50m
Merged PRs (30d): 10

Dominant language: Julia
License: MIT
Last GitHub push: Sep 12, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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47 open issues indexed

FirstOrder(lowpass=false): documented transfer function differs from implementation for k != 1 Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 55/100

SciML/ModelingToolkitStandardLibrary.jl#515 · Opened Sep 17, 2026
QA: make implicit imports explicit (ExplicitImports no_implicit_imports) Open

Difficulty 4/5 3-5 days Newbie friendliness 64/100

SciML/ModelingToolkitStandardLibrary.jl#467 · Opened Jun 25, 2026
Test suite red on master (latest MTK/SymbolicUtils): _clamp import + ExtraVariablesSystemException + fntype_X_Y; blocks downgrade re-enable Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

SciML/ModelingToolkitStandardLibrary.jl#457 · Opened Jun 6, 2026
It would be nice to have `ModelingToolkitStandardLibrary.Blocks.RealOutput()` with variable `y` instead of `u`. Can we? Open

question

Difficulty 3/5 1-2 days Newbie friendliness 45/100

SciML/ModelingToolkitStandardLibrary.jl#441 · 1 comment · Opened Feb 11, 2026
Why don't many (all?) of the standard library blocks create events for discrete changes in behavior? Open

question

Difficulty 5/5 Over a week Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#432 · 1 comment · Opened Jan 9, 2026
Version bump to 2.27.0 needed Open

Difficulty 1/5 Under an hour Newbie friendliness 35/100

SciML/ModelingToolkitStandardLibrary.jl#427 · 1 comment · Opened Jan 2, 2026
`IsothermalCompressible.Pipe` conflicts with `Base.Pipe` Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

SciML/ModelingToolkitStandardLibrary.jl#415 · Opened Nov 22, 2025
`UndefRefError()` when using `ParametrizedInterpolation` inside of `@mtkmodel` Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

SciML/ModelingToolkitStandardLibrary.jl#409 · 2 comments · Opened Sep 9, 2025
Tests on master seem to fail Open

SciML/ModelingToolkitStandardLibrary.jl#408 · 1 assignee · Opened Sep 3, 2025
Convergence Issues with Controllable Switch and Square Wave using MTK - iflifting Open

question

Difficulty 4/5 3-5 days Newbie friendliness 35/100

SciML/ModelingToolkitStandardLibrary.jl#406 · Opened Aug 3, 2025
Cleanup documentation Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

SciML/ModelingToolkitStandardLibrary.jl#399 · 4 comments · Opened Jul 25, 2025
Time-derivative of ParameterizedInterpolation Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

SciML/ModelingToolkitStandardLibrary.jl#397 · Opened Jun 13, 2025
SlewRateLimiter unexpected behaviour Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

SciML/ModelingToolkitStandardLibrary.jl#390 · Opened May 5, 2025
Thermal sensors need outputs Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

SciML/ModelingToolkitStandardLibrary.jl#384 · 1 comment · Opened Apr 16, 2025
Interpolations component cannot be used within @mtkmodel macro Open

bug

SciML/ModelingToolkitStandardLibrary.jl#340 · 11 comments · 1 assignee · Opened Nov 8, 2024
FlowDivider missing equation? Open

question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

SciML/ModelingToolkitStandardLibrary.jl#326 · Opened Sep 7, 2024
Open port vs HydraulicPort Open

question

SciML/ModelingToolkitStandardLibrary.jl#322 · 1 assignee · Opened Aug 28, 2024
Several components specify defaults instead of guesses Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

SciML/ModelingToolkitStandardLibrary.jl#282 · 4 comments · Opened Apr 11, 2024
How to model ADC/DAC Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#279 · 1 comment · Opened Mar 27, 2024
`SampledData` no longer allows a tunable buffer Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

SciML/ModelingToolkitStandardLibrary.jl#272 · Opened Feb 22, 2024
DOC: unnamed TimeVaryingFunction in tutorial Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 68/100

SciML/ModelingToolkitStandardLibrary.jl#253 · Opened Jan 25, 2024
Altering the type of interpolation used with SampledData blocks Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

SciML/ModelingToolkitStandardLibrary.jl#239 · 7 comments · Opened Oct 31, 2023
Improve documentation Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#226 · Opened Sep 26, 2023
Add units to component parameters Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

SciML/ModelingToolkitStandardLibrary.jl#207 · 3 comments · 5 reactions · Opened Aug 11, 2023
PID in Blocks not able to accept symbolic parameters Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

SciML/ModelingToolkitStandardLibrary.jl#203 · Opened Jul 28, 2023
`Torque` can no longer be instantiated Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

SciML/ModelingToolkitStandardLibrary.jl#198 · 1 comment · Opened Jul 20, 2023
Why are Thermal[Conductor|Resistor] so different from their Convective* counterparts Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#172 · 1 comment · Opened May 12, 2023
Let default constructor initialize the GUIMetadata type Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

SciML/ModelingToolkitStandardLibrary.jl#148 · 5 comments · Opened Feb 10, 2023
Missing modelica libraries Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#141 · 4 comments · Opened Jan 12, 2023
What happened to sinevoltage? Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

SciML/ModelingToolkitStandardLibrary.jl#130 · 4 comments · Opened Nov 25, 2022
State space may not contain all states when there are zeros in the matrix entries Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

SciML/ModelingToolkitStandardLibrary.jl#125 · 2 comments · Opened Nov 4, 2022
how to pass exogenous input signals to components? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#123 · 4 comments · Opened Oct 27, 2022
Equivalent Circuit Model of Electrochemical/Solid state Cells Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

SciML/ModelingToolkitStandardLibrary.jl#101 · 2 comments · Opened Aug 27, 2022
Add a revolute joint component Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

SciML/ModelingToolkitStandardLibrary.jl#94 · Opened Jul 18, 2022
Add a world frame object Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

SciML/ModelingToolkitStandardLibrary.jl#93 · Opened Jul 18, 2022
Add a 2D rigid body component Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#92 · Opened Jul 15, 2022
Add units Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#90 · 8 comments · 3 reactions · Opened Jun 29, 2022
Add ThermalFluid library Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#87 · 2 reactions · Opened Jun 26, 2022
Mux/Demux missing Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

SciML/ModelingToolkitStandardLibrary.jl#80 · 2 comments · 1 reaction · Opened Jun 17, 2022
Propagation of variable names and variable comments Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#79 · 2 comments · Opened Jun 17, 2022
Plotting output/input values Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#71 · 1 comment · Opened Jun 9, 2022
Provide keyword-free constructors for single-arg components Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

SciML/ModelingToolkitStandardLibrary.jl#53 · Opened May 12, 2022
Finish Digital components Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

SciML/ModelingToolkitStandardLibrary.jl#42 · Opened Apr 28, 2022
`PulseDiff` incorrect default Open

Difficulty 1/5 Under an hour Newbie friendliness 55/100

SciML/ModelingToolkitStandardLibrary.jl#21 · 1 reaction · Opened Dec 10, 2021
`DampedSinVoltage` output oscillates before `starttime`, `offset` doesn't work with negative `starttime` Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

SciML/ModelingToolkitStandardLibrary.jl#20 · 1 comment · Opened Dec 9, 2021
Change of parameters from defaults are possibly ignored Open

SciML/ModelingToolkitStandardLibrary.jl#17 · 1 assignee · Opened Nov 15, 2021
Finish magnetic models Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

SciML/ModelingToolkitStandardLibrary.jl#2 · 4 comments · Opened Nov 2, 2021

SciML/ModelingToolkitStandardLibrary.jl

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