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Stop Simulink simulation when reached an oscillating steady state amplitude

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Alberto Mora
Alberto Mora on 22 Nov 2017
Commented: Alberto Mora on 27 May 2020
I would like stop a Simulink simulation if a signal reach the steady state in terms of amplitude of oscillations: at the start of the simulation the signal have got a generic transitory, but after some time the system reach the equilibrium and so the system reach steady state like approximativelly a sin(x) function with a constant amplitude.
I would like to compare the heigth relative difference between two near peaks and compare it by a threshold percentage, but I don't know how to do it. If someone have other ideas, please tell me.
Obviously this example is not usefull in this case, because I want to find a steady state of an oscillating system, and NOT a steady state of a signal that reach a target value.
To understand better what I mean, you can see two dinstinct examples (what I want to get is stop the simulation at green line time since signals are are dynamic steady state).

Answers (1)

Fangjun Jiang
Fangjun Jiang on 27 May 2020
If you have this toolbox and can use this block, maybe you can look at the rate of change of the magnitude.

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