I am new to Modelica / Dymola modeling. I began to model fluid models for my master's work (pipes, heaters, control). My professor suggested: checking the eigenvalues of the systems and their relationship (and if the systems are rigid). So the following was done:
- Linear analysis
- Full linear analysis
- SimulationSetup: linearizeAtInitial = false; t_linearize = 1000 (that the system is in operating mode (after initialization)
Modeling restorations are Ok.
But linear analysis says: the system is unstable → what does it mean?
And regarding the eigenvalues, I get the following result:
I have to say that I really was not listed. So these are my questions:
- Does this mean that the system has 23 eigenvalues?
- , "" , , ?
- 12-23 → , , ?
() /, , : , ..
.