Experimental and analytical investigation of actively damped beam vibrations

• Autorzy: Pietrzakowski M
• Języki publikacji: EN

Abstrakty

EN

The problem of active damping of cantilever beam transverse vibrations is considered, by using a collocated piezoceramic sensor and actuator. Experimental results of free vibrations confirmed the effectiveness of the control circuit with the analog derivative controller for suppression of a low-frequency beam motion. Theoretical analysis is based on the simplified pure bending model of interaction between the piezoactuator and the beam with a constant equivalent stiffness. The viscoelastic material parameters of the tested beam are estimated considering the fundamental frequency and logarithmic decrement of transient vibrations. The results of simulation, even for the applied simplified model of the system, are in a good agreement with the experiment.

Słowa kluczowe

EN

beam vibrations; active damping; piezoelectric control

PL

drgania belki; aktywne tłumienie; serowanie piezoelektryczne

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2001
• Tom: Vol. 5, nr 2
• Strony: 111--120
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Pietrzakowski M

• Warsaw University of Technology, Institute of Machine Design Fundamentals, Narbutta 84,02-524 Warszawa, Poland,

Bibliografia

• [1] Bailey, T., Hubbard, J. E.: Distributed piezoelectric-polymer. Active vibration control of a cantilever beam. Journal of Guidance, Control and Dynamics, 8, 605-611 (1985)
• [2] Clare, R. L., Fuller, Ch. R., Wicks, A.: Characterization of multiple piezoelectric actuators for structural excitation. J.Acoust. Soc.Am., 90,346-357 (1991)
• [3] Dimitriadis, E., Fuller, C. R. and Rogers, C. A.: Piezoelectric actuators for distributed vibration excitation of thin plates. Journal of Applied Mechanics, 113, 100-107 (1991)
• [4] Kapadia R. K., Kawiecki G.: Experimental evaluation of segmented active constrained layer damping treatments. J. of Intelligent Material Systems and Structures, 8, 103-111 (1997)
• [5] Pietrzakowski M.: Multiple piezoceramic segments in structural vibration control. J. of Theoretical and Applied Mechanics, 38, 35-50 (2000)
• [6] Pietrzakowski M.: Active damping of laminated plates by skewed piezoelectric patches. J. of Theoretical and Applied Mechanics, 39, 377-393 (2001)
• [7] Tylikowski A.: Two-dimensional piezoelectric actuators for vibration excitation and suppression of thin plates. Machine Dynamics Problems, 24,199-207 (2000)
• [8] QickPack piezoelectric actuators. Active Control experts, Inc. (1997)