Optimal Design of Piezoelectric Actuators for Shunt Damping Techniques

• Autorzy: Neubauer M.

Identyfikatory

DOI

10.2478/aoa-2014-0066

• Języki publikacji: EN

Abstrakty

EN

In vibration control with piezoceramics, a high coupling of the piezoelement with the structure is desired. A high coupling improves the damping performance of passive techniques like shunt damping. The coupling can be influenced by a the material properties of the piezoceramics, but also by the placement within the structure and the size of the transducer. Detailed knowlegde about the vibration behavior of the structure is required for this. This paper presents an in-depth analysis of the optimal shape of piezoelectric elements. General results for one-dimensional, but inhomogeneos strain distribution are provided. These results are applied to the case of a longitudinal transducer and a bending bimorph. It is obtained that for maximum coupling, only a certain fracture of the volume should be made of piezoelectric material. . .

Słowa kluczowe

EN

piezoelectric transducer; piezoelectric shunt damping; piezoelectric energy harvesting; vibration damping

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2014
• Tom: Vol. 39, No. 4
• Strony: 615--622
• Opis fizyczny: Bibliogr. 7 poz., rys., wykr.

Twórcy

autor

Neubauer M.

• Institute of Dynamics and Vibration Research, Leibniz University Hannover ppelstr. 11, 30167 Hannover, Germany

Bibliografia

• 1. Hagood N.W, von Flotow A. (1991), Damping of structural vibrations with piezoelectric materials and passive electrical networks, Journal of Sound Vibration, 146, 243–268, doi: 10.1016/0022-460X(91)90762-9.
• 2. IEEE (1889), Ieee standard on piezoelectricity, ANSI/IEEE Std 176-1987.
• 3. Moheimani S.O.R. (2003), A survey of recent innovations in vibration damping and control using shunted piezoelectric transducer, IEEE Transactions on Control Systems Technology, 11, 4, 482–494.
• 4. Neubauer M., Schwarzendahl S.M., Wallaschek J. (2011), Determination of the piezoelectric coupling coefficient for arbitrary deformation, Proceedings of Mechatronic Systems and Materials (MSM) Conference, Kaunas.
• 5. Neubauer M., Schwarzendahl S., Wallaschek J. (2012), A new solution for the determination of the generalized coupling coefficient for piezoelectric systems, Journal of Vibroengineering, 14, 1, 105–110.
• 6. Ulitko A.F. (1977), Theory of electromechanical energy conversion in nonuniformly deformable piezoceramics, Soviet Applied Mechanics, 13, 1055–1062, doi:10.1007/BF00883190.
• 7. Wolf K. (2000), Electromechanical Energy Conversion in Asymmetric Piezoelectric Bending Actuators, PhD thesis.