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active vibration control
Posted 16.05.2013, 06:45 GMT-4 Interfacing, Parameters, Variables, & Functions, Structural Mechanics Version 3.5a 0 Replies
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I am working on a an active vibration control progect with a cantilever beam, piezo electric actuator, and with a location measurments components.
but first i need to simulate the whole closed loop system.
So i have manged to export my simple cantilever beam system into matlab (comsol 3.5a), and i defind one input on the edge called u1, and in the middle of the beam i defind u2 and -u2 on two points to have a bending moment effect (simulating a piezo actuator), also a material has been defiend.
in matlab i worked with a LQR tutorial to find the right matrices.
first of all i want to ask if you think that this is the right way to simulate a LQR vibration control in matlab ?
what would you recommend to change in the comsol system (inputs perhaps?).
also i have a bit of a problem with the idea to define 2 inputs u1 u2 while the other is only a response to the first.
but this is what my head progect suggested.
at the end i just want to input a sinus force to activate the system, and to damp it with the bending moment.
my goal is to find the best place that i can put the actuator.
thank you for your help.
Eyal
Hello Eyal Kay
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