This code collection implements the active vibration control of a cantilever beam by piezoceramic actuators and using linear quadratic (LQ) control. The example is coded in the ANSYS-specific APDL (Ansys Parameteric Design Language), including the algorithms for closed-loop control.

• Implements a 3D transient vibration analysis in ANSYS APDL
• Simulates piezoceramic actuators
• Contains the linear quadratic feedback algorithm entirely in APDL
• The example has been verified experimentally, the collection contains laboratory data.

Launch the start.mac macro in your ANSYS installation. Comment the control part to compare with open-loop behavior. The beam tip deformation is plotted in ANSYS, and the responsce can also be visualized as an animation. Results will be saved to the results.csv' file, then the data can be plotted in MATLAB by launching the process.m' script. The 'control.m' script computes LQ gain and illustrates the estimatior in action. The file 'experiment.mat' contains experimental measurements. Code functionality last verified in ANSYS Mechanical APDL 19.0.

• TAKÁCS, Gergely - ROHAĽ-ILKIV, Boris. Direct closed-loop active vibration control system prototyping in ANSYS. In NOVEM 2012. Noise and vibration: Emerging Methods : proceedings of the conference. Sorrento, Italy, 1.-4. 4. 2012. Napoli : Universita degli Studi di Napoli "Federico II", 2012, s.001-1 - 001-12. ISBN 9788890648403.

• TAKÁCS, Gergely - ROHAĽ-ILKIV, Boris. Model Predictive Vibration Control: Efficient Constrained MPC Vibration Control for Lightly Damped Mechanical Structures. 1st. ed. London: Springer Verlag London, 2012. 512 s. ISBN 978-1-4471-2332-3. Monograph.

• Simulation results in a video