Fan Noise Source Diagnostic Test Tone Modal Structure Results
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Fan Noise Source Diagnostic Test Tone Modal Structure Results
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Author :
language : en
Publisher:
Release Date : 2002
Fan Noise Source Diagnostic Test Tone Modal Structure Results written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Fan Noise Source Diagnostic Test
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-19
Fan Noise Source Diagnostic Test written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-19 with categories.
This investigation is part of a test series that was extremely comprehensive and included aerodynamic and acoustic testing of a fan stage using two different fan rotors and three different stator designs. The test series is known as the Source Diagnostic Test (SDT) and was conducted by NASA Glenn as part of the Advanced Subsonic Technology (AST) Noise Reduction Program. Tone mode measurements of one of the rotors with three different stators were made. The stator designs involve changes in vane count and sweep at constant solidity. The results of both inlet and exhaust tone mode measurements are presented in terms of mode power for both circumferential and radial mode orders. The results show benefits of vane sweep to be large, up to 13 dB in total tone power. At many conditions, the increase in power due to cutting on the rotor/stator interaction is more than offset by vane sweep. The rotor locked mode is shown as an important contributor to tone power when the blade tip speed is near and above Mach one. This is most evident in the inlet when the direct rotor field starts to cut on. Heidelberg, Laurence J. Glenn Research Center NASA/TM-2002-211594, NAS 1.15:211594, E-13378, AIAA Paper 2002-2428
Fan Noise Source Diagnostic Test Far Field Acoustic Results
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Author :
language : en
Publisher:
Release Date : 2002
Fan Noise Source Diagnostic Test Far Field Acoustic Results written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Issues In Aerospace And Defense Research And Application 2011 Edition
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Author :
language : en
Publisher: ScholarlyEditions
Release Date : 2012-01-09
Issues In Aerospace And Defense Research And Application 2011 Edition written by and has been published by ScholarlyEditions this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-09 with Technology & Engineering categories.
Issues in Aerospace and Defense Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Aerospace and Defense Research and Application. The editors have built Issues in Aerospace and Defense Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Aerospace and Defense Research and Application in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Aerospace and Defense Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Comparison Of Tone Mode Measurements For A Forward Swept And Baseline Rotor Fan
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Author :
language : en
Publisher:
Release Date : 2003
Comparison Of Tone Mode Measurements For A Forward Swept And Baseline Rotor Fan written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Aerospace America
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Author :
language : en
Publisher:
Release Date : 2002
Aerospace America written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Aeronautics categories.
Nasa Technical Memorandum
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Author :
language : en
Publisher:
Release Date : 1994
Nasa Technical Memorandum written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Aeronautics categories.
43rd Aiaa Aerospace Sciences Meeting Exhibit
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Author :
language : en
Publisher:
Release Date : 2005
43rd Aiaa Aerospace Sciences Meeting Exhibit written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Aeronautics categories.
Bibliography Of Lewis Research Center Technical Publications Announced In 1977
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Author : Lewis Research Center
language : en
Publisher:
Release Date : 1978
Bibliography Of Lewis Research Center Technical Publications Announced In 1977 written by Lewis Research Center and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Technology categories.
This compilation of abstracts describes and indexes over 780 technical reports resulting from the scientific and engineering work performed and managed by the Lewis Research Center in 1977. All the publications were announced in the 1977 issues of STAR (Scientific and Technical Aerospace Reports) and/or IAA (International Aerospace Abstracts). Documents cited include research reports, journal articles, conference presentations, patents and patent applications, and theses.
Aeronautics And Space Report Of The President Activities
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Author : United States. President
language : en
Publisher:
Release Date : 1985
Aeronautics And Space Report Of The President Activities written by United States. President and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Aeronautics categories.