Acoustical Properties of Electrospun Fibers for Aircraft Interior Noise Reduction
Publication: Journal of Aerospace Engineering
Volume 25, Issue 3
Abstract
High–surface area micro-and nanoscale electrospun fibers were produced for noise-reduction purposes using three different polymers: polyvinylpyrrolidone (PVP), polystyrene (PS), and PVC. These polymers were initially dissolved in appropriate solvents and electrospun at various electrospinning conditions. The two-microphone transfer-function method of the Brüel and Kjær (B&K) impedance tube was used to determine the acoustical properties of the electrospun fibers at different frequencies. Test results showed that the absorption coefficients of the fibers (200 nm to 7 µm) were significantly enhanced at nanoscale. The reason behind this phenomenon may be attributed to the higher surface area of fibers and their interactions with more sound waves/air molecules. Overall, the findings of this research will open up new possibilities for the noise-reduction problem of aircraft, other transportation vehicles, and infrastructures.
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Acknowledgments
The authors gratefully acknowledge a grant by ADMRC through the National Institute for Aviation Research at Wichita State University for partially sponsoring this research.
References
Asmatulu, R., Dandin, V., and Khan, W. (2009a). “Properties of recycled PVC and PS nanocomposite fibers at various NiZn ferrite loadings.” Proc., Society for the Advancement of Material and Process Engineering (SAMPE) Fall Technical Conf., DEStech Publications, Lancaster, PA.
Asmatulu, R., Davluri, S., and Khan, W. (2009b). “Fabrications of CNT based nanocomposite fibers from the recycled plastics.” Proc., American Society of Mechanical Engineers (ASME) Int. Mechanical Engineering Congress and Exposition, ASME, New York, 1–6.
Asmatulu, R., Khan, W., and Yildirim, M. B. (2009c). “Acoustical properties of electrospun nanofibers for aircraft interior noise reduction.” Proc., American Society of Mechanical Engineers (ASME) Int. Mechanical Engineering Congress and Exposition, ASME, New York, 1–7.
ASTM. (1990). “Standard test method for impedance and absorption of acoustical materials using a tube, two microphones, and a digital frequency analysis system.” Standard Designation E 1050-90, West Conshohocken, PA.
Barber, A. (2002). Handbook of noise and vibration control, 7th Ed., Elsevier, Oxford, UK.
Carneal, J. P., Charette, F., and Fuller, C. R. (2004). “Minimization of sound radiation from plates using adaptive tuned vibration absorbers.” J. Sound Vib.JSVIAG, 270(4–5), 781–792.
Crichton, D., de la Rosa Blanco, E., Law, T., and Hileman, J. (2007). “Design and operation for ultra low noise take-off.” Proc., 45th American Inst. of Aeronautics and Astronautics (AIAA) Aerospace Sciences Meeting and Exhibit, AIAA, Reston, VA.
Crocker, M. (1997). Handbook of acoustics, Wiley, New York.
Dandaroy, I., Hartley, D., and Hund, R. (2004). “Interior noise perdition of hawker horizon aircraft using statistical energy analysis.” Proc., Noise-Con 04 2004 National Conf. on Noise Control Engineering, Inst. of Noise Control Engineering, Iowa State Univ., Ames, IA.
Dzenis, Y. (2008). “Structural nanocomposites.” ScienceSCIEAS, 319(5862), 419–420.
Gupta, P., Asmatulu, R., Wilkes, G., and Claus, R. O. (2006). “Superparamagnetic flexible substrates based on submicron electrospun Estane® fibers containing MnZnFe-Ni nanoparticles.” J. Appl. Polym. Sci.JAPNAB, 100(6), 4935–4942.
Hirsch, M. S. et al. (2000). “Experimental study of smart segmented trim panels for aircraft interior noise control.” J. Sound Vib.JSVIAG, 231(4), 1023–1037.
Horoshenkov, K. V., and Swift, M. J. (2001). “The acoustic properties of granular materials with pore size distribution close to log-normal.” J. Acoust. Soc. Am.JASMAN, 110(5), 2371–2378.
Huang, Y. M., and Fuller, C. R. (1998). “Vibration and noise control of the fuselage via dynamic absorbers.” J. Vib. Acoust.JVACEK, 120(2), 496–503.
Kakade, M. V., Givens, S., Gardner, K., Lee, K. H., Chase, D. B., and Rabolt, J. F. (2007). “Electric field induced orientation of polymer chains in macroscopically aligned electrospun polymer nanofibers.” J. Am. Chem. Soc.JACSAT, 129(10), 2777–2782.
Kalayci, V. E., Patra, P. K., Buer, A., Ugbolue, S. C., Kim, Y. K., and Warner, S. B. (2004). “Fundamental investigations on electrospun fibers.” J. Adv. Mater., 36(4), 43–45.
Khan, W. (2010). “Nanomaterials fabrication and characterization for various applications.” Ph.D. dissertation, Wichita State Univ., KS.
Khan, W., Asmatulu, R., El-Tabey, M. M., Ho, J., and Hamdeh, H. H. (2009). “Electrical properties of nanocomposite fibers under various loads and temperatures.” Proc., American Society of Mechanical Engineers (ASME) Int. Mechanical Engineering Congress and Exposition, ASME, New York, 1–8.
Klara, K., and Vaverka, J. (2009). “Resonant effect of nanofibrous sound absorptive material in room acoustics.” Build. Res. J., 57(1), 1–22.
Koizumi, T., Tsujiuchi, N., and Fujita, K. (2004). “Performance improvement of sound-absorbing materials using natural bamboo fibers and their application.” High performance structures and materials II, Brebbia, C. A., ed., Wessex Institute of Ethnology, Wessex, UK.
Locke, J. E., Sharma, S., and Chan, C. (2007). “Construction of a database for the acoustical characteristics of fibers and foams used for aircraft interior noise treatment.” Nationwide Inpatient Sample (NIS) Rep. to National Institute for Aviation Research (NIAR), Wichita State Univ., Wichita, KS.
Ramakrishna, S., Fujihara, K., Teo, W. E., Lim, T. C., and Ma, Z. (2005). An introduction to electrospinning and nanofibers, World Scientific, Singapore.
Shin, C., and Chase, G. G. (2005). “Nanofibers from recycle waste expanded polystyrene using natural solvent.” Polym. Bull.POBUDR, 55(3), 209–215.
Taylor, G. (1969). “Electrically driven jets.” Proc. R. Soc. London, Ser. APRLAAZ, 313(1515), 453–475.
Wright, R. I., and Kidner, M. R. F. (2004). “Vibration absorbers: A review of applications in interior noise control of propeller aircraft.” J. Vib. ControlJVCOFX, 10(8), 1221–1237.
Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 25 • Issue 3 • July 2012
Pages: 376 - 382
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Aug 17, 2010
Accepted: Mar 10, 2011
Published online: Jul 25, 2011
Published in print: Jul 1, 2012
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