Noise propagation through helicopter gearbox support struts-an experimental study

Journal of Vibration and Acoustics, Transactions of the ASME

Volumn 120, Issue 3, 1998, Pages 695-704

  Brennan, M J ^a   Elliott, S J ^a   Heron, K H ^b  

^a UNIVERSITY OF SOUTHAMPTON   (United Kingdom)

^b DEFENCE SCIENCE AND TECHNOLOGY LABORATORY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

GEARS; KINETIC THEORY; RESONANCE; STRUTS; VIBRATIONS (MECHANICAL);

HELICOPTER GEARBOX; KINETIC ENERGY; NOISE PROPAGATION;

ACOUSTIC NOISE;

EID: 0032118595     PISSN: 10489002     EISSN: 15288927     Source Type: Journal    
DOI: 10.1115/1.2893886     Document Type: Article

References (10)

1. Staple, A. E. and Wells, D. M., 1990, “The Development and Testing of an Active Control System for the EH 101 Helicopter,” 16th European Rotorcraft Forum IIJ.6J J-UI.6J.II.”
2. Bellavita, P., and Smullen, J., 1978, “Cabin Noise Reduction for the Agusta A-109 Helicopter,” 4th European Rotorcraft and Powered Lift Aircraft Forum, Paper No. 61, September 13-15 1978, Stresa, Italy.
3. Bowes, M. A., 1979, “Helicopter internal Noise-An Overview,” Symposium on Internal Noise in Helicopters 17-20 July 1079, University of Southampton.
4. Coy, J. C., Handschuh, R. F., Lewicki, D. G., Huff, R. G., Krejsa, E. A., and Karchmer, A. M., 1987, “Identification and Proposed Control of Helicopter Transmission Noise,” NASA/ARMY Rotorcraft Technology Conference, NASA CP2495.
5. Brennan, M. J., Pinnington, R. J., and Elliott, S. J., 1993, “Mechanisms of Noise Transmission Through Helicopter Gearbox Support Struts,” ASME JOURNAL, OF VIBRATION AND ACOUSTICS, Vol. 116, pp. 548-554.
6. Sutton, T. J., Elliott, S. J., Brennan, M. J., Heron, K. H., and Jessop, D. A. C., 1997, “Active Isolation of Multiple Structural Waves on a Helicopter Gearbox Support Strut” Journal of Sound and Vibration. Vol. 205, No. 1, pp. 81-101.
7. Caramaschi, V., and Vignati, G., 1995, “Main Gearbox Transmissibility Reduction,” Proceedings of the Vertical Lift Aircraft Design Conference, held at the Sheraton Hotel, California, USA, 18-20 January 1995, 5.6.1-5.6.7.
8. Hatter, D. J., 1973, Matrix Computer Methods of Vibration Analysis, But-terworth and Co. Ltd.
9. Brennan, M. J., Elliott, S. J., and Pinnington, R. J., 1992, “Active Control of Vibrations Transmitted Through Struts,” First International Conference on Motion and Vibration Control, Yokohama, Japan, September 1992, 605-609.
10. Elliott, S. J., Sutton, T. J., Brennan, M. J., and Pinnington, R. J., 1994, “Vibration Reduction by Active Wave Control in a Strut,” Proceedings of the IUTAM Symposium on the Active Control of Vibration, held at the University of Bath. UK.