Changes between Initial Version and Version 2 of Ticket #3440


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Timestamp:
2015-09-02T12:19:32Z (10 years ago)
Author:
Niklas Worschech
Comment:

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  • Ticket #3440

    • Property Cc Lennart Ochel Willi Braun added

  • Ticket #3440 – Description

    initial v2  
    1 Using the MSL mass with stop and friction with a force (see attached example), Dymola detects a mixed system, which is handled as nonlinear system in OpenModelica. When looking at the equations, there is one linear equation, which depends on a boolean variable. Is there a mixed system detection and handling in OpenModelica?
     1Using the MSL mass with stop and friction with a force (see example below), Dymola detects a mixed system, which is handled as nonlinear system in OpenModelica. When looking at the equations, there is one linear equation, which depends on a boolean variable. Is there a mixed system detection and handling in OpenModelica?
     2
     3model TestModel
     4  Modelica.Mechanics.Translational.Components.MassWithStopAndFriction
     5  massWithStopAndFriction(m=1);
     6  Modelica.Mechanics.Translational.Sources.Force force;
     7  Modelica.Blocks.Sources.Sine sine;
     8
     9equation
     10  connect(force.flange, massWithStopAndFriction.flange_a);
     11  connect(sine.y, force.f);
     12
     13end TestModel;