Recent research in the area of structural acoustic control for aircraft interior noise suppression has been focused on developing active trim panels. Active trim panels being part of non-critical structures offer many advantages over active controls applied to load critical structures such as aircraft frames and skins. Because there are many flanking paths for the noise to get into the cabin, and because it is not realistic to apply active controls to the entire interior trim panel, the part of the trim that is instrumented with structural controls will inevitably be driven hard enough to cancel the cabin noise. This probably entails high power requirements for active trim panels. The present paper presents an analytical study of cylindrically curved sandwich composite trim and aluminum panels driven by piezoelectric path actuators. An impedance formulation is taken in the study. This paper studies the effect of curvature on the dynamics of the trim panel and the uniform aluminum panel, and has found that the curvature has an opposite effect on the variation of deflection resonance of the composite trim to that of the aluminum panel. Numerical results of mechanical power transfer between the actuator and the host panel are also presented in the paper. This quantity can be used to assess the control authority of the composite trim panels as compared to that of uniform aluminum panels.
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References
1.
1. Ahuja, K. K. and J. C. Stevens. 1990. "Recent advances in active noise control,"Proceedings of the 13th AIAA, Aeroacoustics Conference.
2.
2. Banks, H. T., R. C. Smith and Y. Wang. 1996. Smart Material Structures-Modeling, Estimation and Control, John Wiley & Sons, New York.
3.
3. Blevins, R. D.1984. Formulas for Natural Frequency and Mode Shape, Robert E. Krieger Publishing Company, Malabar, Florida.
4.
4. Burgemeister, K. A. and C. H. Hansen. 1993. "Use of a secondary perforated panel to actively control the sound radiated by a heavy structure,"Proceedings of the ASME Winter Conference.
5.
5. Chia, C. Y.1980. Nonlinear Analysis of Plates, McGraw-Hill, New York.
6.
6. Franklin, G. F., J. D. Powell and A. Emami-Naeini. 1986. Feedback Control of Dynamic Systems, Addison-Wesley, Reading, Massachusetts.
7.
7. Grosveld, F. W. et al. 1994. "Numerical study of active structural acoustic control in a stiffened, double wall cylinder,"Proceedings of the National Conference on Noise Control Engineering, Institute of Noise Control Engineering, pp. 403-408.
8.
8. Hirsch, S. M. and J. Q. Sun. 1997a. "An acoustic boundary control method with actuator grouping for interior noise suppression,"Proceedings of the Eleventh VIA & SU Symposium on Structural Dynamics and Control.
9.
9. Hirsch, S. M. and J. Q. Sun. 1997b. "Numerical studies of acoustic boundary controls for interior sound suppression,"Journal of the Acoustical Society of America, 104(4):2227-2235.
10.
10. Hirsch, S. M. and J. Q. Sun. 1997c. "Spatial characteristics of acoustic boundary control for interior noise suppression,"Proceedings of ASME Sixteenth Biennial Conference on Mechanical Vibration and Noise.
11.
11. Lalande, F., Z. Chaudhry and C. A. Rogers. 1995a. "Comparison of different impedance-based models for out-of-phase actuation of actuators bonded on ring structures,"Journal of Intelligent Material Systems and Structures, 6(3):389-395.
12.
12. Lalande, F., Z. Chaudhry and C. A. Rogers. 1995b. "Impedance-based modeling of actuators bonded to shell structures,"Journal of Intelligent Material Systems and Structures, 6(6): 765-775.
13.
13. Lalande, F., Z. Chaudhry and C. A. Rogers. 1995c. "Modeling considerations for in-phase actuation of actuators bonded on shell structures,"AIAA Journal, 33(7): 1300-1303.
14.
14. Leissa, A. W. 1973. "Vibration of shells," NASA, Technical Report, NASA SP-288, reprinted by the Acoustical Society of America, 1993.
15.
15. Lester, H. C. and S. Lefebvre. 1993. "Piezoelectric actuator models for active sound and vibration control of cylinders,"Journal of Intelligent Material Systems and Structures, 4(3):295-306.
16.
16. Liang, C., F. Sun and C. A. Rogers. 1994. "Coupled electromechanical analysis of piezoelectric ceramic actuator-driven systems Determination of the actuator power consumption and system energy transfer,"Journal of Intelligent Material Systems and Structures, 5:12-20.
17.
17. Mason, B. V., K. Naghshineh and G. K. Toth. 1994. "Broadband, wide-area active control of sound radiation from vibrating structures using local surface-mounted radiation suppression devices,"Proceedings of Noise Con, pp. 467-472.
18.
18. Mason, B. V. et al. 1995. "A feedforward controller for active reduction of radiated noise from a uniformly vibrating circular plate,"Proceedings of ASME Winter Annual Meeting, ASME, 95-WAINCA-8.
19.
19. Miccoli, G. and A. Concilio. 1994. 'Recent advances in noise and vibration active control by means of piezoelectric transducers,"Proceedings of the 3rd International Congress on Air and Structure-borne Sound and Vibration, Vol. 3, pp. 1377-1384.
20.
20. Pan, J. and C. H. Hansen. 1994. "Power transmission from a vibrating source through an intermediate flexible panel to a flexible cylinder,"Journal of Vibration and Acoustics, 116(4):496-505.
21.
21. Pan, J., C. H. Hansen and D. A. Bies. 1992. "Use of a perforated panel for active control of sound radiated from vibrating structures, I. Low-frequency analysis,'Journal of Sound and Vibration, 156(2):349-359.
22.
22. Piezo Electric Products, Inc.1990. "Piezoceramic bending elements Product information."
23.
23. Ross, C1989. "Current developments and future trends in active noise control,"Noise & Vibration Control Worldwvide, pp. 171-173.
24.
24. Sermoneta, A. et al. 1995. "Dynamic analysis of active structures under multiple actuators excitations using an impedance approach,"Proceedings of SPIE North American Conference on Smart Structures and Materials, Vol. 2443, pp. 448-457.
25.
25. Silcox, R. J. et al. 1995. "A study of active structural acoustic control applied to the trim panels of a large scale fuselage model,"Proceedings of the First Joint CEASIAIAA Aeroacoustics Conference, Vol. II, pp. 1095-1104.
26.
26. St. Pierre Jr., R. L., W. Chen and G. H. Koopmann. 1995. "Design of adaptive panels with high transmission loss characteristics,"Proceedings of ASME Winter Annual Meeting, ASME.
27.
27. Stakgold, I.1979. Green's Functions and Boundary Value Problems, John Wiley & Sons, New York.
28.
28. Sun, J. Q., W. Bao and R. N. Miles. 1995. "Fatigue life prediction of nonlinear plates under random excitations,"Journal of Vibration and Acoustics, 120(2):353-360.
29.
29. Sun, J. Q. and S. M. Hirsch. 1997. "An acoustic boundary control method for interior noise suppression,"Proceedings of the SPIE Smart Structures and Materials '97.
30.
30. Sun, J. Q. et al. 1996. "Distributed piezoelectric actuators for shell interior noise control,"Journal of Vibration and Acoustics, 1188:676-681.
31.
31. Thomas, D. R. et al. 1993. "Experimental investigation into the active control of sound transmission through stiff light composite panels,"Noise Control Engineering, 41(1):273-279.
32.
32. Tichy, J.1991. "Current and future issues of active noise control,"Journal of Acoustical Society of Japan (E), 12(6):255-262.
