Download or read book Near Field and Far Field Noise Measurements for a Blowdown Wind Tunnel Supersonic Exhaust Jet Having about 475 000 Pounds of Thrust written by William H. Mayes and published by . This book was released on 1961 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Near-field and far-field noise surveys were made of the supersonic The exhaust jet of the Langley 9- by 6-foot thermal structures tunnel. The jet had a thrust rating of approximately 475,000 pounds. The sound power radiated was found to be about 3.6 x 10(exp 6) watts, and on an acoustical-mechanical efficiency basis this value is in reasonable agreement with data for smaller supersonic jets and for rocket engines of other investigations. Octave-band analyses of the near-field noise show that the maximum sound pressure levels in the low-frequency bands are greatest downstream, whereas maximum sound pressure levels in the high-frequency bands were greatest near the jet exit. A comparison of near-field noise measurements is made with data previously obtained for rocket engines. Noise survey measurements of the original jet are compared with similar data obtained after the addition of a 97-foot-long exit diffuser section, and an example of the application of this facility to the problem of acoustic environmental testing of a large space capsule is cited.
Download or read book NASA Technical Note written by and published by . This book was released on 1964 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP written by and published by . This book was released on 1970 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Noise Measurements During Captive and Launch Firings of a Large Rocket powered Vehicle written by William H. Mayes and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustics Technology written by Skipwith W. Athey and published by . This book was released on 1970 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: " ... This survey is one of a series of NASA publications that include information of interest to the non-aerospace community. In this survey, the major revival and expansion of acoustic technology that took place in the middle of this century has been reviewed. ... The information in this document is based on a comprehensive examination of the literature available on the subject. The reference material is concerned primarily with investigations of the mechanisms by which noise is generated, the propagation of noise by spacecraft boosters, the origin of noise generated by compressors in aircraft turbojet engines, and the subjective effects of noise on humans. Because many of these investigations are still in progress, the extent to which they are treated is limited in some cases. It is hoped, however, that the information presented here will stimulate interest in acoustics and the control of noise, and will guide interested persons to sources of specific information in the literature presently available."--Foreword.
Download or read book Flow and Acoustic Characteristics of Subsonic and Supersonic Jets from Convergent Nozzle written by Henry T. Nagamatsu and published by . This book was released on 1970 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Scientists and Engineers Selected Biographical and Bibliographical Listing written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Contractor Report written by and published by . This book was released on 1970 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Collection of Technical Papers written by and published by . This book was released on 1972 with total page 1274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications in Acoustic and Noise Control from NASA Langley Research Center During 1940 1979 written by and published by . This book was released on 1980 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications in Acoustics and Noise Control from the NASA Langley Research Center During 1940 1974 written by and published by . This book was released on 1975 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1961 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Nonlinear Response of Windows to Random Noise written by Henry S. Freynik and published by . This book was released on 1963 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Vibration Response of an Orbiting Geophysical Observatory Spacecraft Full scale Structural Model to a Simulated Launch Acoustic Environment written by Paul J. Alfonsi and published by . This book was released on 1966 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of NACA and NASA Published Information of Pertinence in the Design of Light Aircraft written by Clifford J. Moore and published by . This book was released on 1970 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report investigates critical reviews of NACA and NASA report literature on light aircraft design, with emphasis on propulsion subsystems, stability, control, propellers, performance, and safety.
Download or read book A Volume of Technical Papers Presented at AIAA Unmanned Spacecraft Meeting Los Angeles California March 1 4 1965 written by American Institute of Aeronautics and Astronautics and published by . This book was released on 1965 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1961-04 with total page 1746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
