Synonyms were used for: Noise vibration,
Search without synonyms: title: Noise and Vibration; Noise and vibration, 2010

1–20 of 54 hits
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    A comparison of acoustic and random vibration testing of spacecraft

    Bangs, W. F. | NTRS | 1974
    large, low density spacecraft launched by a vehicle which produces significant acoustic noise and transmits relatively little vibration through ...
    Publisher: NASA National Aeronautics and Space Administration

    Acoustic and vibration environments for laboratory experiments in space

    Rader, W. P. | NTRS | 1981
    The basic parameters of random noise and vibration are described, and typical environments for the launch phase and orbital operations are ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Spacecraft Design, Testing And Performance

    Acoustic Load Considerations for Spacecraft Structures

    Wilby, J. F. / Piersol, A. G. | NTRS | 1986
    was developed. A modified form of the model can also be used to predict vibration levels of the orbiter mid fuselage and to evaluate noise ...
    Publisher: NASA National Aeronautics and Space Administration

    Acoustics Research of Propulsion Systems

    X. Gao / J. Houston | NTIS | 2014
    used in the prediction of the internal vibration responses of the vehicle and components. Present liftoff vehicle acoustic environment ...
    Publisher: National Aeronautics and Space Administration, Huntsville, AL. George C. Marshall Space Flight Center.
    Keywords: NOISE SPECTRA , VIBRATION TESTS

    Aeroacoustic Research in the Netherlands Related to Aircraft Development

    W. B. Dewolf / S. L. Sarin | NTIS | 1985
    For jet noise reduction the feasibility of a lined ejector nozzle for the Fokker F28 aircraft was investigated by scale model measurements ...
    Keywords: Aircraft noise , Noise reduction

    Aeroacoustics of Space Vehicles

    Panda, Jayanta | NTRS | 2014
    mitigate the ignition pressure waves and rocket plume generated noise during the early part of the liftoff. Recently we have used large microphone ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Spacecraft Design, Testing And Performance , Space Transportation And Safety

    Aeroacoustics of Space Vehicles

    J. Panda | NTIS | 2014
    mitigate the ignition pressure waves and rocket plume generated noise during the early part of the liftoff. Recently we have used large microphone ...
    Publisher: National Aeronautics and Space Administration, Moffett Field, CA. Ames Research Center.
    Keywords: Noise reduction

    Airframe noise: A design and operating problem

    Hardin, J. C. | NTRS | 1976
    this noise source are evaluated in light of the comprehensive theory developed by Ffowcs Williams and Hawkings. Vibration of panels on the ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Air Transportation And Safety

    Airframe self-noise: Four years of research

    Hardin, J. C. | NTRS | 1976
    directivity of this noise source are evaluated in the light of the comprehensive theory developed by Ffowcs-Williams and Hawkins. Vibration of panels ...
    Publisher: NASA National Aeronautics and Space Administration

    Airframe Self-Noise: Four Years of Research

    J. C. Hardin | NTIS | 1976
    directivity of this noise source are evaluated in the light of the comprehensive theory developed by Ffowcs-Williams and Hawkins. Vibration of panels ...
    Publisher: National Aeronautics and Space Administration. Langley Research Center, Langley Station, Va
    Keywords: Noise Pollution & Control , Aircraft noise , Noise reduction , Research and development , Vibration effects , Noise pollution

    Assessment of space vehicle aeroacoustic- vibration prediction, design, and testing

    Fuller, C. M. / Himelblau, H. / Scharton, T. D. | NTRS | 1970
    Space vehicle structural vibration induced by acoustic and aerodynamic noise ...

    Cardiovascular Effects of Vibration Semiannual Report, 1 Feb. - 31 Jul. 1966

    Dines, J. H. / Roberts, L. B. | NTRS | 1966
    Cardiovascular changes and noise reduction in electrocardiograph signals studied on human and dog during vibration ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: VIBRATION EFFECT , NOISE REDUCTION

    CARS temperature measurements in a hypersonic propulsion test facility

    Jarrett, O., Jr. / Smith, M. W. / Antcliff, R. R. et al. | NTRS | 1990
    optical access ports and safety features in the design of the Test Cell. Such design considerations as vibration, noise, contamination from flow ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Instrumentation And Photography

    Cavity Oscillation in Cruise Missile Carrier Aircraft

    H. W. Bartel / J. M. McAvoy | NTIS | 1981
    This report discusses cavity oscillation in general, and particularly the problem of cavity oscillation in the missile bays of cruise ...
    Keywords: Oscillation , Vibration , Radiated noise , Flow noise

    Concept, Design, and Performance of the Msc Spacecraft Acoustic Laboratory

    W. D. Dorland / K. M. Eldred / J. D. Johnston et al. | NTIS | 1968
    Publisher: National Aeronautics and Space Administration. Manned Spacecraft Center, Langley Station, Va
    Keywords: Vibration simulators , Noise propagation

    Concorde Noise-Induced Building Vibrations, Montgomery County, Maryland

    Mayes, W. H. / Scholl, H. F. / Stephens, D. G. et al. | NTRS | 1976
    vibration and associated indoor/outdoor noise levels resulting from aircraft and nonaircraft events in selected homes, historic and other buildings ...
    Publisher: NASA National Aeronautics and Space Administration

    Data on the noise vibrations of modern traction locomotives

    Paslaru, V. / Popescu, A. / Vrasti, R. | NTRS | 1974
    A survey is presented of data on noise and vibration sources in modern locomotives and their influence on engine drivers. An attempt is ...
    Publisher: NASA National Aeronautics and Space Administration

    Derivation of Acoustic Criteria for the Cassini Spacecraft and Comparison with Flight Data

    Himelblau, Harry / Hughes, William / McNelis, Anne et al. | NTRS | 1999
    account for the following factors: (a) noise-spike contamination of flight data, (b) spatial and flight-to-flight variations of flight data, (c ...
    Publisher: NASA National Aeronautics and Space Administration

    Doublet Pulse Coherent Laser Radar for Tracking of Resident Space Objects

    N. S. Prasad / V. Rudd / S. Shald et al. | NTIS | 2014
    currently being investigated for short dwell time measurements of resident space objects (RSOs) in LEO and beyond for space surveillance ...
    Publisher: National Aeronautics and Space Administration, Hampton, VA. Langley Research Center.
    Keywords: Shot noise , Vibration measurement

    Experimental and theoretical sound transmission

    Roskam, J. / Muirhead, V. U. / Smith, H. W. et al. | NTRS | 1978
    of interior noise in general aviation aircraft were discussed. Data obtained on panels with holes, on honeycomb panels, and on various panel ...
    Publisher: NASA National Aeronautics and Space Administration