Piezo actuator setup generating SimElectronics error "Failed to solve using iteration matrix. Initial conditions solve failed to converge."
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Hello,
I'm trying to set up a piezo actuator in SimElectronics, send a signal through it and measure the motion of the free end and I've been getting the following error:
"Nonlinear solver: Linear Algebra error. Failed to solve using iteration matrix. Initial conditions solve failed to converge."
I've experimented with the "Solver Configuration" block parameters a bit (as well as the structure of the model) and I'm not sure to try next.
Is there a good demo/example of this type of problem somewhere?
The model I'm working on is at
Thanks,
Caela
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Guy Rouleau
2011-6-24
0 个投票
The main problem is that you are using a Sensor instead of an actuator. To apply a voltage to the Piezo, I recommend using a Voltage source, for example:
Then your motion sensor is connected wrong. Motion Sensors must be connected in parallel with the piezo to view the relative motion of the 2 masses, not in series between the piezo and a mass.
Finally, connecting together a mass and a reference is useless, because the mass will never move.
I recommend experimenting with the demos shipping with Simscape and SimElectronics.
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2011-6-23
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