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

101–120 of 468 hits
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    Laboratory and community studies of aircraft noise effects

    Stephens, D. G. / Powell, C. A. | NTRS | 1978
    interior noise and vibration for speech intelligibility and comfort of crew and passengers. Selected results from several recent studies are ...
    Publisher: NASA National Aeronautics and Space Administration

    Measurement, analysis, and prediction of aircraft interior noise

    Howlett, J. T. / Williams, L. H. / Catherines, J. J. et al. | NTRS | 1976
    and laboratory studies for a light aircraft are presented. The laboratory data indicate that structural vibration is an efficient source of ...
    Publisher: NASA National Aeronautics and Space Administration

    Wheel/Rail Noise Control Manual

    J. T. Nelson | NTIS | 1997
    This manual will be of interest to engineers responsible for wheel/rail noise control in the design, construction, and operation of rail ...
    Keywords: Noise Pollution & Control , Noise pollution , Transportation noise , Vibration , Noise control , Squeal noise

    Truck Noise VIII: The Determination of the Practical Noise Control Retrofitting of Pre-1970 Truck and Coach Models

    O. J. Bullard / G. M. Shaffer | NTIS | 1976
    Duty Astro, and one 53 passenger transit coach, to achieve optimum noise reduction. The selection of this material came from commercially ...
    Publisher: General Motors Corp., Pontiac, Mich. GMC Truck and Coach Div
    Keywords: Noise Pollution & Control , Noise reduction , Engine noise , Vibration

    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 ...

    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

    A Study of Helicopter Interior Noise Reduction

    J. T. Howlett / S. A. Clevenson | NTIS | 1975
    levels. Results of several noise and vibration measurements on Langley Research Center's Civil Helicopter Research Aircraft are presented ...
    Publisher: National Aeronautics and Space Administration. Langley Research Center, Langley Station, Va
    Keywords: Noise Pollution & Control , Noise reduction , Aircraft noise , Vibration

    Smart Structures for Vibration Control on Long-Term Space Exploration and Habitation Missions

    Gattis, Christy B. / Shepard, W. Steve, Jr. | NTRS | 2004
    examines some of the potential sources of vibration and noise as well as means for controlling these vibrations. Many of the operating components ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Lunar And Planetary Science And Exploration

    NASA Space Vehicle Design Criteria (Structures) - Structural Vibration Prediction

    J. S. Archer | NTIS | 1970
    Publisher: National Aeronautics and Space Administration, Washington, D. C
    Keywords: Vibration effects , Aerodynamic noise

    Microgravity vibration isolation technology: Development to demonstration

    Grodsinsky, Carlos M. | NTRS | 1993
    The low gravity environment provided by space flight has afforded the science community a unique area for the study of fundamental and ...
    Publisher: NASA National Aeronautics and Space Administration

    The Propagation of Railway Noise in Residential Areas

    H. S. Gill | NTIS | 1975
    -storey terraced houses parallel to the railway line, and propagation of railway noise between two rows of two-storey terraced houses ...
    Publisher: Southampton Univ. (England). Inst. of Sound and Vibration Research
    Keywords: Noise Pollution & Control , Noise propagation , Noise measurement , Noise reduction

    Microgravity Vibration Isolation Technology: Development to Demonstration

    C. M. Grodsinsky | NTIS | 1993
    The low gravity environment provided by space flight has afforded the science community a unique area for the study of fundamental and ...
    Publisher: National Aeronautics and Space Administration, Cleveland, OH. Lewis Research Center
    Keywords: Vibration damping , Vibration isolators

    Helicopter Noise Blade Slap. Part 2 Experimental Results

    J. W. Leverton | NTIS | 1972
    Blade slap encountered in rotary wings and its effect on helicopter performance are reported. The results of various individual flight ...
    Publisher: Southampton Univ. (england). Inst. of Sound and Vibration Research
    Keywords: Aerodynamic noise , Noise intensity

    Aircraft Propeller Induced Structure-Borne Noise

    J. F. Unruh | NTIS | 1989
    ) and several structural response modifications for structure-borne noise control (the use of wing blocking mass/fuel, wing damping treaments ...
    Keywords: Propeller noise , Structural vibration , Noise measurement

    Structureborne Noise Control in Advanced Turboprop Aircraft

    I. J. Loeffler | NTIS | 1987
    tractor and pusher propulsion systems will consume 15 to 30 percent less fuel than advanced turbofan systems. Structureborne noise detection ...
    Publisher: National Aeronautics and Space Administration, Cleveland, OH. Lewis Research Center
    Keywords: Aircraft noise , Structural vibration , Noise , Aerodynamic noise

    Revolutionary Concepts for Helicopter Noise Reduction: SILENT Program

    Edwards, Bryan / Cox, Charles / Booth, Earl R., Jr. | NTRS | 2002
    reduce noise with minimal performance degradation and no vibration increase. It is concluded that a SILENT main rotor design, incorporating the ...
    Publisher: NASA National Aeronautics and Space Administration

    Vibration Nuisance from Road Traffic at Fourteen Residential Sites

    C. J. Baughan / D. J. Martin | NTIS | 1981
    relations between the physical parameters of traffic and traffic noise and the degree of vibration nuisance experienced by residents were ...
    Publisher: Transport and Road Research Lab., Crowthorne (England)
    Keywords: Vibration , Traffic noise

    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

    Effects of Vibration on Navy and Marine Corps Helicopter Flight Crews

    J. M. Ketchel / J. W. Danaher / C. J. Morrissey | NTIS | 1969
    Identifiable vibration characteristics of contemporary military helicopters are described. These provide a basis for analyzing and ...
    Keywords: Vibration , Noise

    A study of helicopter interior noise reduction

    Howlett, J. T. / Clevenson, S. A. | NTRS | 1975
    levels. Results of several noise and vibration measurements on Langley Research Center's Civil Helicopter Research Aircraft are presented ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance