Aircraft take-off noise synthesis in a non-standard atmosphere

Abstract

Local effects of noise mitigation are preferably researched with high-fidelity tools rather than standardized noise models. The added advantage is that it is even possible to actually listen to the audible results from these tools. Such an audible result can be generated with the help of noise synthesis techniques. Aircraft noise synthesis, based on separate modeling of airframe and engine noise components, is described in this study for the use in a virtual reality noise simulator. The present study also shows the effect of atmospheric wind to a synthesized take-off procedure. This was studied in order to quantify the role of the wind in a previous comparison between measurements and synthesized results. The present analysis shows that there is an impact of the wind on the audible result. Hence, the modeling of wind effects can be important to bring measurements and simulation more inline. However, given the current mild wind case, the impact is relatively small. Therefore it is concluded that the observations from the previous research, the comparison without wind effects, will still hold.

Keywords

Source noise acoustic propagation noise synthesis signal processing

Get full access to this article

View all access options for this article.

References

Granøien

I.L.N

, Randeberg

R.T.

and Olsen

, Next generation aircraft noise models – need and requirements, InterNoise 2010, 13-16 June Lisbon, Portugal.

Arntzen

and Simons

D.G.

, Modeling and Synthesis of Aircraft Flyover Noise, Applied Acoustics 84 (2014), 99–106.

Grosveld

F.W.

, Sullivan

B.M.

and Rizzi

S.A.

, Temporal characterization of aircraft noise sources, AIAA Aerospace Sciences Meeting and Exhibit, 5-8 January 2004, Reno, Nevada, USA.

Rizzi

S.A.

and Sullivan

B.M.

, Synthesis of virtual environments for aircraft community noise impact studies, 11th AIAA/CEAS Aeroacoustics Conference, AIAA-2005-2983, Monterey, CA, 2005.

Rizzi

S.A.

, Sullivan

B.M.

and Aumann

A.R.

, “Recent developments in aircraft flyover noise simulation at Langley Research Center,”, NATO Research and Technology Agency AVT-158 “Environmental Noise Issues Associated with Gas Turbine Powered Military Vehicles” Specialists Meeting, Paper 17, Montreal, Canada, 2008, NATO RTA Applied Vehicle Technology Panel pp. 14.

Rizz

S.A.

, Aumann

A.R.

, Lopes

L.V.

and Burley

C.L.

, Auralization of Hybrid Wing–Body Aircraft Flyover Noise from System Noise Predictions, AIAA Journal of Aircraft 51(5), 1914–1926.

Arntzen

, Aircraft noise calculation and synthesis in a non-standard atmosphere, PhD-dissertation, 2014, TU Delft.

Fink

M.R.

, “Noise component method for airframe noise”, AIAA 4th Aeroacoustics conference, October 3-5 1977, Atlanta, Georgia, USA.

Lighthill

M.J.

, “On sound generated aerodynamically I: General Theory,””, Series A:, Mathematical and Physical Sciences (1952), 564–572.

10.

Stone

J.R.

, Krejsa

E.A.

and Clark

B.J.

, “Jet noise moddeling for coannular nozzles including the effect of chevrons”, NASA/CR-2003-212522, 2003.

11.

Kontos

K.B.

, Janardan

B.A.

, Gliebe

P.R.

, “Improved ANOPP noise prediction computer code for advanced subsonic propulsion systems. Volume 1: ANOPP evaluation and fan noise model improvement”, NASA-CR-195480, 1996.

12.

Zorumski

W.E.

, Aircraft noise prediction prog4ram theoretical manual part I & II, NASA TM83199, 1982.

13.

Bertsch

E.L.

, Noise prediction within conceptual aircraft design, PhD-dissertation, TU Braunschweig, 2013.

14.

Huber

, Clarke

J.-P.

and Maloney

, Aircraft noise impact under diverse weather conditions. 9th AIAA/CEAS Aeroacoustics Conference AIAA 2003-3276, Hilton Head, SC, 2003.

15.

Allen

M.P.

, Rizzi

S.A.

, Burdisso

and Okcu

, “Analysis and synthesis of tonal aircraft noise sources,” 18th AIAA/CEAS Aeroacoustics Conference, AIAA 2012-2078, Colorado Springs, CO, 2012.

16.

Arntzen

, Visser

H.G.

, Simons

D.G.

and Veen

T.A.

, “Aircraft noise simulation for a virtual reality environment,” 17th AIAA/CEAS Aeroacoustics Conference, AIAA 2011-2853, Portland, OR, 2011.

17.

Arntzen

, Rizzi

S.A.

, Visser

H.G.

and Simons

D.G.

, “A framework for simulation of aircraft flyover noise through a non-standard atmosphere,” 18th AIAA/CEAS Aeroacoustics Conference, AIAA 2012-2079, Colorado Springs, CO, 2012.

18.

Anonymous, “Prediction of sound attenuation in a refracting turbulent atmosphere with a Fast Field Program”, ESDU 04011, May 2004

19.

Chapin

, Goldserver, AuSIM3D GoldSeries Audio Localizing Server System, User's Guide and Reference, rev. 1d, October 2001.

20.

Begault

D.R.

, 3D Sound for Virtual Reality and Multimedia, Academic Press Inc., Chestnutt Hill, MA, USA 1994 edition.