Opened 10 years ago

Closed 10 years ago

#2754 closed defect (fixed)

Models that fail with doLinearTearing

Reported by: Willi Braun Owned by: Willi Braun
Priority: high Milestone: 1.9.2
Component: Backend Version: trunk
Keywords: tearing, linear Cc: Niklas Worschech, Lennart Ochel

Description

Since r21558 the following models fails with doLinearTearing:

Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_YD.mos
Modelica.Mechanics.MultiBody.Examples.Elementary.LineForceWithTwoMasses.mos
Modelica.Electrical.Analog.Examples.DifferenceAmplifier.mos

Let's see if the coverage test tonight brings up some more.

I've no idea what the reason is, but I noticed that all linear systems that fail try to solve for a least for one derivative variable (e.g. der(x)). No idea if this is relevant.

Change History (5)

comment:1 by Willi Braun, 10 years ago

The coverage test has only brings up one that belongs Modelica.[...].LineForceWithTwoMasses.mos:

ModelicaTest.MultiBody.Forces.ForceWithTwoMasses2
Last edited 10 years ago by Willi Braun (previous) (diff)

comment:2 by Martin Sjölund, 10 years ago

Milestone: 1.9.1 → 1.9.2

This ticket was not closed for 1.9.1, which has now been released. It was batch modified for milestone 1.9.2 (but maybe an empty milestone was more appropriate; feel free to change it).

comment:3 by Willi Braun, 10 years ago

Owner: changed from somebody to Willi Braun
Status: new → accepted

comment:4 by Willi Braun, 10 years ago

fixed in r23097.

Modelica.Mechanics.MultiBody.Examples.Elementary.LineForceWithTwoMasses.mos
Modelica.Electrical.Analog.Examples.DifferenceAmplifier.mos

comment:5 by Willi Braun, 10 years ago

Resolution: → fixed
Status: accepted → closed

Now also
Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_YD.mos
fixed in r23100.

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