High Speed Research Sonic Boom

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High-Speed Research: Sonic Boom

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Author by : Christine M. Darden
Languange Used : English, France, Spanish, Italia and chinese
Page : 195
Isbn :
Identifier : NASA:31769000470230
Release : 1992
Publisher by : no defined
Category : Technology & Engineering
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High-Speed Research: Sonic Boom

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Author by : Thomas A. Edwards
Languange Used : English, France, Spanish, Italia and chinese
Page : 231
Isbn :
Identifier : NASA:31769000472954
Release : 1994
Publisher by : no defined
Category :
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The 1995 NASA High-Speed Research Program Sonic Boom Workshop

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Author by : Daniel G. Baize
Languange Used : English, France, Spanish, Italia and chinese
Page : 393
Isbn :
Identifier : NASA:31769000471642
Release : 1996
Publisher by : no defined
Category :
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The 1995 NASA High-Speed Research Program Sonic Boom Workshop

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Author by : Daniel G. Baize
Languange Used : English, France, Spanish, Italia and chinese
Page : 393
Isbn :
Identifier : NASA:31769000471642
Release : 1996
Publisher by : no defined
Category :
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High-Speed Dreams NASA and the Technopolitics of Supersonic Transportation, 1945–1999

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Author by : Erik Conway
Languange Used : English, France, Spanish, Italia and chinese
Page : 392
Isbn : 1421410435
Identifier : 9781421410432
Release : 2008-11-09
Publisher by : JHU Press
Category : Science
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Description : Read Now High Speed Dreams by Erik Conway and you can download with pub, pdf, txt, doc, and more file format with free account. in high-speed dreams, erik m. conway constructs an insightful history that focuses primarily on the political and commercial factors responsible for the rise and fall of american supersonic transport research programs. conway charts commercial supersonic research efforts through the changing relationships between international and domestic politicians, military/nasa contractors, private investors, and environmentalists. he documents post-world war ii efforts at the national advisory committee on aeronautics and the defense department to generate supersonic flight technologies, the attempts to commercialize these technologies by britain and the united states during the 1950s and 1960s, environmental campaigns against sst technology in the 1970s, and subsequent attempts to revitalize supersonic technology at the end of the century. high-speed dreams is a sophisticated study of politics, economics, nationalism, and the global pursuit of progress. historians, along with participants in current aerospace research programs, will gain valuable perspective on the interaction of politics and technology. -- alex roland, duke university, former president of the society for the history of technology

Community Response to High-energy Impulsive Sounds An Assessment of the Field Since 1981

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Author by : Sanford Fidell
Languange Used : English, France, Spanish, Italia and chinese
Page : 55
Isbn :
Identifier : NAP:15239
Release : 1996
Publisher by : National Academies
Category : Noise
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Recapturing NASA's Aeronautics Flight Research Capabilities

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Author by : Committee to Assess NASA's Aeronautics Flight Research Capabilities
Languange Used : English, France, Spanish, Italia and chinese
Page : 85
Isbn : 0309255392
Identifier : 9780309255394
Release : 2012-07-11
Publisher by : National Academies Press
Category : Science
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Description : Read Now Recapturing Nasa S Aeronautics Flight Research Capabilities by Committee to Assess NASA's Aeronautics Flight Research Capabilities and you can download with pub, pdf, txt, doc, and more file format with free account. in the five decades since nasa was created, the agency has sustained its legacy from the national advisory committee on aeronautics (naca) in playing a major role in u.s. aeronautics research and has contributed substantially to united states preeminence in civil and military aviation. this preeminence has contributed significantly to the overall economy and balance of trade of the united states through the sales of aircraft throughout the world. nasa's contributions have included advanced flight control systems, de-icing devices, thrust-vectoring systems, wing fuselage drag reduction configurations, aircraft noise reduction, advanced transonic airfoil and winglet designs, and flight systems. each of these contributions was successfully demonstrated through nasa flight research programs. equally important, the aircraft industry would not have adopted these and similar advances without nasa flight demonstration on full-scale aircraft flying in an environment identical to that which the aircraft are to operate-in other words, flight research. flight research is a tool, not a conclusion. it often informs simulation and modeling and wind tunnel testing. aeronautics research does not follow a linear path from simulation to wind tunnels to flying an aircraft. the loss of flight research capabilities at nasa has therefore hindered the agency's ability to make progress throughout its aeronautics program by removing a primary tool for research. recapturing nasa's aeronautics flight research capabilities discusses the motivation for nasa to pursue flight research, addressing the aspects of the committee's task such as identifying the challenges where research program success can be achieved most effectively through flight research. the report contains three case studies chosen to illustrate the state of nasa armd. these include the era program and the fundamental research program's hypersonics and supersonics projects. following these case studies, the report describes issues with the nasa armd organization and management and offers solutions. in addition, the chapter discusses current impediments to progress, including demonstrating relevancy to stakeholders, leadership, and the lack of focus relative to available resources. recapturing nasa's aeronautics flight research capabilities concludes that the type and sophistication of flight research currently being conducted by nasa today is relatively low and that the agency's overall progress in aeronautics is severely constrained by its inability to actually advance its research projects to the flight research stage, a step that is vital to bridging the confidence gap. nasa has spent much effort protecting existing research projects conducted at low levels, but it has not been able to pursue most of these projects to the point where they actually produce anything useful. without the ability to actually take flight, nasa's aeronautics research cannot progress, cannot make new discoveries, and cannot contribute to u.s. aerospace preeminence.

Contemporary Research in Engineering Science

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Author by : Romesh C. Batra
Languange Used : English, France, Spanish, Italia and chinese
Page : 685
Isbn : 3642800017
Identifier : 9783642800016
Release : 2012-12-06
Publisher by : Springer Science & Business Media
Category : Technology & Engineering
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Description : Read Now Contemporary Research In Engineering Science by Romesh C. Batra and you can download with pub, pdf, txt, doc, and more file format with free account. fatigue failures occur in aerospace,marine,nuclear structures and automobile com ponents from initiation and propagation of cracks from holes,scratches or defects in the material. to design against these failures, crack propagation life and fracture strength need to be accurately predicted. it is reported in the literature, that these failures often initiate as surface cracks, corner cracks and cracks emanating from fastner holes. such cracks are with elliptic or nearly elliptic in shapes. the deviation from elliptic shape is due to varying constraint effect along the crack front. even in situations, when the cracks are through the thickness of the material, there would be thicknesswise variation of constraint effects leading to three dimensional nature of crack growth. accurate predictions of the crack growth in these cases by numerical methods can be made only by solving three-dimensional boundary value problems. empirical relationships have been developed [1] based on linear elastic fracture mechanics over years describing fatigue crack growth response. some of these empirical relationships required modifications in the later stages, to meet the design applications. the crack closure phenomenon discovered by elber[2, 3] during the crack growth phase is mainly attributed to the local material yielding near the crack tip and the consequent residual plastic wake behind the crack tip. it helped considerably in understanding several aspects of fatigue crack growth and rewrite these relations.

Commercial Supersonic Technology The Way Ahead

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Author by : National Research Council
Languange Used : English, France, Spanish, Italia and chinese
Page : 64
Isbn : 0309082773
Identifier : 9780309082778
Release : 2002-02-16
Publisher by : National Academies Press
Category : Technology & Engineering
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Description : Read Now Commercial Supersonic Technology by National Research Council and you can download with pub, pdf, txt, doc, and more file format with free account. high-speed flight is a major technological challenge for both commercial and business aviation. as a first step in revitalizing efforts by the national aeronautics and space administration (nasa) to achieve the technology objective of high-speed air travel, nasa requested the national research council (nrc) to conduct a study that would identify approaches for achieving breakthroughs in research and technology for commercial supersonic aircraft. commercial supersonic technology documents the results of that effort. this report describes technical areas where ongoing work should be continued and new focused research initiated to enable operational deployment of an environmentally acceptable, economically viable commercial aircraft capable of sustained supersonic flight, including flight over land, at speeds up to approximately mach 2 in the next 25 years or less.

Nacelle Integration to Reduce the Sonic Boom of Aircraft Designed to Cruise at Supersonic Speeds

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Author by : no defined
Languange Used : English, France, Spanish, Italia and chinese
Page : 18
Isbn :
Identifier : NASA:31769000633977
Release : 1999
Publisher by : no defined
Category :
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Monthly Catalog of United States Government Publications

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Author by : no defined
Languange Used : English, France, Spanish, Italia and chinese
Page : 233
Isbn :
Identifier : IND:30000047355858
Release : 1995
Publisher by : no defined
Category : Government publications
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Commercial Supersonic Technology The Way Ahead

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Author by : National Research Council
Languange Used : English, France, Spanish, Italia and chinese
Page : 64
Isbn : 0309183383
Identifier : 9780309183383
Release : 2002-01-16
Publisher by : National Academies Press
Category : Technology & Engineering
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Description : Read Now Commercial Supersonic Technology by National Research Council and you can download with pub, pdf, txt, doc, and more file format with free account. high-speed flight is a major technological challenge for both commercial and business aviation. as a first step in revitalizing efforts by the national aeronautics and space administration (nasa) to achieve the technology objective of high-speed air travel, nasa requested the national research council (nrc) to conduct a study that would identify approaches for achieving breakthroughs in research and technology for commercial supersonic aircraft. commercial supersonic technology documents the results of that effort. this report describes technical areas where ongoing work should be continued and new focused research initiated to enable operational deployment of an environmentally acceptable, economically viable commercial aircraft capable of sustained supersonic flight, including flight over land, at speeds up to approximately mach 2 in the next 25 years or less.