The use of piezoelectric materials simultaneously as passive single-mode devices and active broadband actuators to suppress structural vibrations is discussed. A simple modal model that predicts this behavior is developed. Experimental studies conducted to verify the model show a reduction of 20 dB in the response of the second mode of the structure is possible via passive shunting while simultaneously commanding the piezoactuator. The results indicate that for vibration problems involving a few modes, piezoelectric devices combining active and passive techniques can significantly reduce the broadband structural response to disturbances.
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References
1.
Agnes, G. S. , S. R. Whitehouse and J. R. Mac kaman. 1993. "Vibration Attenuation of Aircraft Structures", Smart Structures and Materials, SPIE, 1917:368-379.
2.
Bailey, T. and J. E. Hubbard. 1985. "Distributed Piezoelectric Polymer Active Vibration Control of a Cantilever Beam", J. of Guidance and Control, 8(5):605-611.
3.
Chen, W.1986. Passive and Active Filters, Theory and Implementations. New York: John Wiley & Sons.
4.
Crawley, E. F. and J. de Luis. 1987. "Use of Piezoelectric Actuators as Elements of Intelligent Structures", AIAA Journal, 25(10).
5.
Edberg, D. L. , A. S. Bicos and J. S. Fechter. 1991. 'On Piezoelectric Energy Conversion for Electronic Passive Damping Enhancement", Proceedings of Damping '91, San Diego, Paper GBA-1.
6.
Forward, R. L.1979. "Electronic Damping of Vibrations in Optical Structures"', Journal of Applied Optics, 18(5):690-697.
7.
Hagood, N. W. , W. H. Chung and A. von Flotow. 1990. "Modelling Piezoelectric Actuator Dynamics for Active Structural Control", Journal of Intelligent Material Systems and Structures, 1:327-354.
8.
Hagood, N. W. and A. von Flotow. 1991. "Damping of Structural Vibrations with Piezoelectric Materials and Passive Electrical Networks", Journal of Sound and Vibration, 146(2):243-268.
9.
Hollkamp, J. J.1994a. "Multimodal Passive Vibration Suppression with Piezoelectric Materials and Resonant Shunts"' Journal of Intelligent Material Systems and Structures, 5(l):49-57.
10.
Hollkamp, J. J. , 1994b. 'A Self-Tuning Piezoelectric Vibration Absorber", Proceedings of the 35th AIAA/ASME/ASCE/AHS/ACS Structures, Structural Dynamics and Materials Conference, April, Hilton Head, SC, Paper 94-1790.
11.
Jaffe, B. , R. Cook and H. Jaffe. 1971. Piezoelectric Ceramics. New York, NY: Academic Press.
12.
Niezrecki, C. and H. H. Cudney. 1993. "Power Factor Correction Methods Applied to Piezoelectric Actuators", Proceedings of the 34th AIAA/ ASME/ASCE/AHS/ACS Structures, Structural Dynamics and Materials Conference, La Jolla, CA, Paper AIAA-93-1688
13.
Obal, M. W. 1986. Vibration Control of Flexible Structures Using Piezoelectric Devices as Sensors and Actuators, Ph.D. thesis, Georgia Institute of Technology.
