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Electromechanical control of vibration on a plate submitted to a non-ideal excitation
Institution:1. Department of Aerospace Engineering, Sharif University of Technology, Tehran, Iran;2. Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada;3. Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran;1. College of Astronautics, Northwestern Polytechnical University, Xi׳an 710072, China;2. Duke University, Durham, NC 27708-0300, United States;1. Tampere University, Electrical Engineering, P.O. Box 692, FI-33720, Tampere (Hervanta Campus), Finland;2. Aalto University, Department of Electrical Engineering and Automation, P.O. Box 15500, FI-00076, Espoo, Finland;3. Istituto Nazionale di Ricerca Metrologica, INRIM, Strada delle Cacce 91, Torino, Italy;4. Politecnico di Torino, Dipartimento di Elettronica e Telecomunicazioni, Corso Duca degli Abruzzi 24, Torino, Italy;5. Tampere University, Civil Engineering, P.O. Box 600, 33014 Tampere University (Hervanta Campus), Finland
Abstract:This paper deals with the enhancement of electromechanical control of vibration on a thin plate submitted to non-ideal excitation. Modelling of the systems displays the non-ideal source used as external excitation above the structure on a particular surface and control force acting at specific points under the structure. The electromechanical device is composed by a RL circuit with a saturated inductance and stings connected to the plate is used as connection between the structure and the controller. Routh–Hurwitz criteria are used to obtain the stability condition of the controlled system and some dynamics exploration leads us to the condition for which the amplitude of vibration is reduced in the mechanical structure.
Keywords:Plate  Electromechanical control  Routh–Hurwitz criteria  Non-ideal excitation
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