How do I solve Differential Algebraic Equations with Simulink 8.0 (R2012b)?

I would like to solve index-1 differential algebraic equations in Simulink. How do I solve differential algebraic equations and what products do I need?

Answer 1

[MathWorks Support Team]

Differential algebraic equations can be solved using several products:

1. MATLAB: ODE15s and a Mass Matirx

2. Simulink: Use an algebraic loop

3. Simscape: Use a custom block in the Simscape language

The Simscape language can solve differential algebraic equations as explained in its documentation:

https://www.mathworks.com/help/simscape/ug/how-simscape-models-represent-physical-systems.html#bsjpdmk

To convert algebraic and differential equations, please refer to the following:

https://www.mathworks.com/help/symbolic/generate-simscape-equations.html

For examples on solving a differential algebraic equation, please refer to the following documentation.

https://www.mathworks.com/help/simulink/ug/model-a-differential-algebraic-equation.html