Optimization method for educing variable-impedance liner properties

AIAA Journal

Volumn 36, Issue 1, 1998, Pages 18-23

  Watson, Willie R ^a,b   Tanner, Sharon E ^a,c,d   Parrott, Tony L ^a,c  

^a NASA LANGLEY RESEARCH CENTER   (United States)

^b Fluid Mechanics and Acoust Division   (United States)

^c Fluid Mechanics and Acoustic Div   (United States)

^d AIAA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0343869617     PISSN: 00011452     EISSN: None     Source Type: Journal    
DOI: 10.2514/2.369     Document Type: Article

References (8)

1. Armstrong, D. L., and Olsen, R. F., "Impedance Measurement of Acoustic Duct Liners with Grazing Flow," 87th Meeting of the Acoustical Society of America, New York, April 1974.
2. Watson, W. R., "A Method for Detemining Acoustic-Liner Admittance in a Rectangular Duct with Grazing Flow from Experimental Data," NASA TP-2310, July 1984
3. Watson, W. R., "A New Method for Determining Acoustic-Liner Admittance in Ducts with Sheared Flow in Two Cross-Sectional Directions," NASA TP-2518, Oct. 1985.
4. Watson, W. R., Tanner, S. E., and Parrott, T. L., "A Finite Element Model for Extracting Normal Incidence Impedance in Nonprogressive Acoustic Wave Feilds," Journal of Computational Physics, Vol. 125, April 1996, pp. 177-186.
5. Watson, W. R. Tanner, S. E., and Parrott, T. L., "Validation of a Numberical Method for Extracting Liner Impedance," AIAA Journal, Vol. 34, No. 3, 1996, pp. 548-554.
6. Stewart, G. W., III, "A Modification's Minimization Method to Accept Diffiereace Approximations of Derivatives," Journal of the ACM, Vol. 14, No 1, 1967, pp. 72-83.
7. Jones, M. G., and Parrott, T. L., "Evaluation of a Multi-Point Method for Determining Acoustic Impedence," Mechanical Systems and Signal Processing Journal, Vol. 3, No. 1, 1989, pp. 15-35.
8. Parrott, T. L., and Jones, M. G., "Parallel-Element Liner Impedances for Improved Absorption of Broadband Sound in Ducts." Noise Control Engineering Journal, Vol. 43, No 6, 1995, pp. 183-195.