Active filters
Displaying 1-50 of 55 results
Acoustic and aerothermal performance test of the axisymmetric coannular ejector nozzle [microform] / William Herkes.
Text
[Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center ; Hanover, MD : Available from NASA Center for AeroSpace Information ; Springfield, VA : National Technical Information Service [distributor, 2000-
2000
0 resources
Euler solutions to nonlinear acoustics of non-lifting hovering rotor blades [microform] / J.D. Baeder.
Text
Moffett Field, Calif. : National Aeronautics and Space Administration, Ames Research Center : US Army Aviation Systems Command, Aviation Research and Technology Activity ; [Springfield, Va. : For sale by the National Technical Information Service, distributor, 1991]
1991
0 resources
Potential uses of vacuum bubbles in noise and vibration control [microform] / Istvan L. Ver.
Text
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1989]
1989
0 resources
Acoustic properties and durability of liner materials at non-standard atmospheric conditions [microform] / K.K. Ahuja, R.J. Gaeta, Jr., and J.S. Hsu.
Text
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1994]
1994
0 resources
Semi-annual report for NASA grant NAG-1-431 [microform] : period, November 1, 1986 - April 30, 1987 / principal investigator, B.T. Smith.
Text
[Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1987]
1987
0 resources
Biot theory and acoustical properties of high porosity fibrous materials and plastic foams [microform] / J. Allard and A. Aknine.
Text
[Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1987]
1987
0 resources
Evaluation of a doubly-swept blade tip for rotorcraft noise reduction [microform] / Brian E. Wake and T. Alan Egolf.
Text
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1992]
1992
0 resources
A finite element propagation model for extracting normal incidence impedance in nonprogressive acoustic wave fields [microform] / Willie R. Watson ... [et al.].
Text
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
1995
0 resources
Window acoustic study for advanced turboprop aircraft [microform] / R.A. Prydz, F.J. Balena.
Text
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1984]
1984
0 resources
Lightweight sidewalls for aircraft interior noise control [microform] / D.N. May ... [et al.].
Text
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1985]
1985
0 resources
The noise reduction potential of dual-stream coaxial rectangular improperly expanded jet flows [microform] : final grant report, NASA Langley grant NAG-1-1240, covering the period March 1991 to March 1993 / Darshan Dosanjh, Eric F. Spina.
Text
[Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1995]
1995
0 resources
Effect of density gradients in confined supersonic shear layers [microform] / Oshin Peroomian and R.E. Kelly.
Text
[Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1994]
1994
0 resources
Experimental investigation of wing installation effects on a two-dimensional mixer/ejector nozzle for supersonic transport aircraft [microform] / David J. Anderson, Heather H. Lambert, and Masashi Mizukami.
Text
[Washington, D.C.] : NASA ; [Springfield, Va. : National Technical Information Service, distributor, 1992]
1992
0 resources
An experimental investigation of flow-induced oscillations of the Brüel & Kjaer in-flow microphone [microform] / Richard S. Fields, Jr.
Text
[Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1995]
1995
0 resources
Acoustic and magnetic heating of chromospheres/coronae [microform] : are there distinct signatures? : final technical report for grant NAG 5 3046 / [principal investigator], D.J. Mullan.
Text
[Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1996]
1996
0 resources
Characteristics of residual mixing noise from internal fan/core mixers [microform] / Eugene A. Krejsa and Naseem H. Saiyed.
Text
[Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1997]
1997
0 resources
The effects of linear microphone array changes on computed sound exposure level footprints [microform] / Arnold W. Mueller, Mark R. Wilson.
Text
[Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1997]
1997
0 resources
Aeroacoustic characteristics of a rectangular multi-element supersonic jet mixer-ejector nozzle [microform] / Ganesh Raman, Ray Taghavi.
Text
[Washington, D.C.] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1996]
1996
0 resources
Exact solutions for sound radiation from a circular duct [microform] / Y.C. Cho and K. Uno Ingard.
Text
Moffett Field, Calif. : National Aeronautics and Space Administration, Ames Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1997]
1997
0 resources
XV-15 structural-acoustic data [microform] / Karen H. Lyle.
Text
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1997]
1997
0 resources
Benefits of swept and leaned stators for fan noise reduction [microform] / Richard P. Woodward ... [et al.].
Text
[Cleveland, Ohio] : National Aeronautics and Space Administration, Lewis Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1998]
1998
0 resources
Acoustic treatment design scaling methods [microform].
Text
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1999-
1999-present
0 resources
Noise reduction with lobed mixers [microform] : nozzle-length and free-jet speed effects / Vinod G. Mengle ... [et al.].
Text
[Cleveland, Ohio] : National Aeronautics and Space Administration, Lewis Research Center ; Springfield, VA : National Technical Information Service, distributor, [1997]
1997
0 resources
Eigenmodes of ducted flows with radially-dependent axial and swirl velocity components [microform] / Kenneth A. Kousen.
Text
[Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center ; Springfield, VA : National Technical Information Service, distributor, [1999]
1999
0 resources
TFaNS Ṯone ̲F̲an Ṉoise Design/Prediction ̲System [microform] / David A. Topol.
Text
[Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1999- ]
1999-present
0 resources
Broadband transmission loss due to reverberant excitation [microform] / Lawrence P. Barisciano, Jr.
Text
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1999]
1999
0 resources
Acoustic absorption characteristics of an orifice with a mean bias flow [microform] / K.K. Ahuja, R.J. Gaeta, and M.D'Agostino.
Text
Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; Springfield, VA : National Technical Information Service, distributor, [2000]
2000
0 resources
Performance optimization of a rotor alone Nacelle for acoustic fan testing [microform] / C.C. Cunningham, W.K. Thompson, and C.E. Hughes.
Text
[Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center ; Springfield, VA : National Technical Information Service, distributor, [2000]
2000
0 resources
ALDAS user's manual [microform] / Michael E. Watts.
Text
Moffett Field, Calif. : National Aeronautics and Space Administration, Ames Research Center ; [Springfield, Va. : For sale by the National Technical Information Service, 1991]
1991
1 resource
Available online
http://purl.access.gpo.gov/GPO/LPS59838Asymptotic modal analysis and statistical energy analysis [microform] / Earl H. Dowell and Linda F. Peretti.
Text
[Washington, DC : National Aeronautics and Space Administration ; Springfieldl, Va. : For sale by the National Technical Information Service, 1990]
1990
1 resource
Available online
http://purl.access.gpo.gov/GPO/LPS63966Lobed mixer design for noise suppression [microform] : acoustic and aerodynamic test data analysis / Vinod G. Mengle and Willaim N. Dalton.
Text
[Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center ; Springfield, VA : National Technical Information Service, distributor, [2002-
2002-present
1 resource
Available online
http://purl.access.gpo.gov/GPO/LPS71495An analysis for the sound field produced by rigid wide chord dual rotation propellers of high solidity in compressible flow [microform] / Sridhar M. Ramachandra and Lawrence J. Bober.
Text
[Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, 1986]
1986
0 resources
Takeoff/approach noise for a model counterrotation propeller with a forward-swept upstream rotor [microform] / Richard P. Woodward, ... [et al.].
Text
[Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, 1993]
1993
0 resources
Acoustic mode measurements in the inlet of a model turbofan using a continuously rotating rake [microform] / Laurence J. Heidelberg and David G. Hall.
Text
[Washington, DC : National Aeronautics and Space Administration, 1992]
1992
0 resources
Large-scale Advanced Propfan (LAP) performance, acoustic and weight estimation, January, 1984 [microform] / D. Parzych, [S. Cohen, A. Shenkman].
Text
[Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1985]
1985
0 resources
Empennage noise shielding benefits for an open rotor transport / Jeffrey J. Berton ; prepared for the 17th Aeroacoustics Conference cosponsored by the American Institute of Aeronautics and Astronautics and the Confederation of European Aerospace Societies, Portland, Oregon, June 5-8, 2011.
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, [2012]
2012
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo27502Acoustic performance of a real-time three-dimensional sound-reproduction system / Kenneth J. Faller II, Stephen A. Rizzi, Aric R. Aumann.
Text
Hampton, Virginia : National Aeronautics and Space Administration, Langley Research Center, 2013.
2013
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo45686The aerodynamic performance of an over-the-rotor liner with circumferential grooves on a high bypass ratio turbofan rotor / Richard F. Bozak, Christopher E. Hughes, James Buckley.
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, August 2013.
2013-8
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo49564The alternative low noise fan / James H. Dittmar [and four others].
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, September 2000.
2000-9
1 resource
Available online
https://purl.fdlp.gov/GPO/LPS59301The alternative low noise fan / James H. Dittmar [and four others].
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, October 2000.
2000-10
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo51422Acoustic performance of drive rig mufflers for model scale engine testing / David B. Stephens.
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, 2013.
2013
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo51671Recent improvements to the Acoustical Testing Laboratory at the NASA Glenn Research Center / Devin M. Podboy [and three others].
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Langley Research Center, March 2014.
2014-3
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo51826Hybrid wing body shielding studies using an ultrasonic configurable fan artificial noise source generating typical turbofan modes / Daniel L. Sutliff and Clifford A. Brown, Bruce E. Walker.
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, April 2014.
2014-4
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo53741Large Civil Tiltrotor (LCTR2) interior noise predictions due to turbulent boundary layer excitation / Ferdinand W. Grosveld.
Text
Hampton, Virginia : National Aeronautics and Space Administration, Langley Research Center, June 2013.
2013-6
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo53817Acoustic test characterization of melamine foam for usage in NASA's payload fairing acoustic attenuation systems / William O. Hughes, Anne M. McNelis, and Mark E. McNelis.
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, June 2014.
2014-6
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo56128NASA Engineering and Safety Center (NESC) enhanced melamine (ML) foam acoustic test (NEMFAT) / Anne M. McNelis, William O. Hughes, and Mark E. McNelis.
Text
Hampton, Virginia : National Aeronautics and Space Administration, Langley Research Center, February 2014.
2014-2
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo54979Open rotor aeroacoustic modelling / Edmane Envia.
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, October 2012.
2012-10
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo61676Application of an aligned and unaligned signal processing technique to investigate tones and broadband noise in fan and contra-rotating open rotor acoustic spectra / Jeffrey Hilton Miles and Lennart S. Hultgren.
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, September 2015.
2015-9
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo64653Characteristics of residual mixing noise from internal fan/core mixers / Eugene A. Krejsa and Naseem H. Saiyed.
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, January 1997.
1997-1
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo70932Inlet acoustic data from a high bypass ratio turbofan rotor in an internal flow component test facility / Richard F. Bozak.
Text
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, May 2017.
2017-5
1 resource
Available online
https://purl.fdlp.gov/GPO/gpo82411No results found from Digital Research Books Beta
Digital books for research from multiple sources worldwide - all free to read, download, and keep. No library card required.
Explore Digital Research Books Beta