December 6, 2020

Download Ebook Free Propeller And Rotor Aeroacoustics For Urban Air Mobility Applications

Government Reports Announcements & Index

Government Reports Announcements & Index
Author : Anonim
Publisher : Unknown
Release Date : 1984
Category : Science
Total pages :129
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Rotorcraft System Identification

Rotorcraft System Identification
Author : Anonim
Publisher : Unknown
Release Date : 1991
Category : Helicopters
Total pages :273
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Rotorcraft Aeromechanics

Rotorcraft Aeromechanics
Author : Wayne Johnson
Publisher : Cambridge University Press
Release Date : 2013-04-29
Category : Technology & Engineering
Total pages :129
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A rotorcraft is a class of aircraft that uses large-diameter rotating wings to accomplish efficient vertical take-off and landing. The class encompasses helicopters of numerous configurations (single main rotor and tail rotor, tandem rotors, coaxial rotors), tilting proprotor aircraft, compound helicopters, and many other innovative configuration concepts. Aeromechanics covers much of what the rotorcraft engineer needs: performance, loads, vibration, stability, flight dynamics, and noise. These topics include many of the key performance attributes and the often-encountered problems in rotorcraft designs. This comprehensive book presents, in depth, what engineers need to know about modelling rotorcraft aeromechanics. The focus is on analysis, and calculated results are presented to illustrate analysis characteristics and rotor behaviour. The first third of the book is an introduction to rotorcraft aerodynamics, blade motion, and performance. The remainder of the book covers advanced topics in rotary wing aerodynamics and dynamics.

Unmanned Rotorcraft Systems

Unmanned Rotorcraft Systems
Author : Guowei Cai,Ben M. Chen,Tong Heng Lee
Publisher : Springer Science & Business Media
Release Date : 2011-06-01
Category : Technology & Engineering
Total pages :270
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Unmanned Rotorcraft Systems explores the research and development of fully-functional miniature UAV (unmanned aerial vehicle) rotorcraft, and provides a complete treatment of the design of autonomous miniature rotorcraft UAVs. The unmanned system is an integration of advanced technologies developed in communications, computing, and control areas, and is an excellent testing ground for trialing and implementing modern control techniques. Included are detailed expositions of systematic hardware construction, software systems integration, aerodynamic modeling; and automatic flight control system design. Emphasis is placed on the cooperative control and flight formation of multiple UAVs, vision-based ground target tracking, and landing on moving platforms. Other issues such as the development of GPS-less indoor micro aerial vehicles and vision-based navigation are also discussed in depth: utilizing the vision-based system for accomplishing ground target tracking, attacking and landing, cooperative control and flight formation of multiple unmanned rotorcraft; and future research directions on the related areas.

Advanced Aircraft Flight Performance

Advanced Aircraft Flight Performance
Author : Antonio Filippone
Publisher : Cambridge University Press
Release Date : 2012-12-17
Category : Technology & Engineering
Total pages :129
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This book discusses aircraft flight performance, focusing on commercial aircraft but also considering examples of high-performance military aircraft. The framework is a multidisciplinary engineering analysis, fully supported by flight simulation, with software validation at several levels. The book covers topics such as geometrical configurations, configuration aerodynamics and determination of aerodynamic derivatives, weight engineering, propulsion systems (gas turbine engines and propellers), aircraft trim, flight envelopes, mission analysis, trajectory optimisation, aircraft noise, noise trajectories and analysis of environmental performance. A unique feature of this book is the discussion and analysis of the environmental performance of the aircraft, focusing on topics such as aircraft noise and carbon dioxide emissions.

Low-Speed Aerodynamics

Low-Speed Aerodynamics
Author : Joseph Katz,Allen Plotkin
Publisher : Cambridge University Press
Release Date : 2001-02-05
Category : Mathematics
Total pages :613
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A treatment of low-speed aerodynamics, covering both theory and computational techniques, first published in 2001.

Decadal Survey of Civil Aeronautics

Decadal Survey of Civil Aeronautics
Author : National Research Council,Division on Engineering and Physical Sciences,Aeronautics and Space Engineering Board,Steering Committee for the Decadal Survey of Civil Aeronautics
Publisher : National Academies Press
Release Date : 2006-10-27
Category : Technology & Engineering
Total pages :212
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The U.S. air transportation system is very important for our economic well-being and national security. The nation is also the global leader in civil and military aeronautics, a position that needs to be maintained to help assure a strong future for the domestic and international air transportation system. Strong action is needed, however, to ensure that leadership role continues. To that end, the Congress and NASA requested the NRC to undertake a decadal survey of civil aeronautics research and technology (R&T) priorities that would help NASA fulfill its responsibility to preserve U.S. leadership in aeronautics technology. This report presents a set of strategic objectives for the next decade of R&T. It provides a set of high-priority R&T challengesâ€"-characterized by five common themesâ€"-for both NASA and non-NASA researchers, and an analysis of key barriers that must be overcome to reach the strategic objectives. The report also notes the importance of synergies between civil aeronautics R&T objectives and those of national security.

Japanese Technical Periodical Index

Japanese Technical Periodical Index
Author : Anonim
Publisher : Unknown
Release Date : 1987
Category : Engineering
Total pages :129
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Air Transport System

Air Transport System
Author : Dieter Schmitt,Volker Gollnick
Publisher : Springer
Release Date : 2015-10-06
Category : Technology & Engineering
Total pages :377
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The book addresses all major aspects to be considered for the design and operation of aircrafts within the entire transportation chain. It provides the basic information about the legal environment, which defines the basic requirements for aircraft design and aircraft operation. The interactions between airport, air traffic management and the airlines are described. The market forecast methods and the aircraft development process are explained to understand the very complex and risky business of an aircraft manufacturer. The principles of flight physics as basis for aircraft design are presented and linked to the operational and legal aspects of air transport including all environmental impacts. The book is written for graduate students as well as for engineers and experts, who are working in aerospace industry, at airports or in the domain of transport and logistics.

ECO-COMPASS

ECO-COMPASS
Author : Xiaosu Yi,Konstantinos Tserpes
Publisher : MDPI
Release Date : 2019-04-25
Category : Technology & Engineering
Total pages :154
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Today, mainly man-made materials, such as carbon and glass fibers, are used to produce composite parts in aviation. Renewable materials, such as natural fibers or bio-sourced resin systems, have not yet found their way into aviation. The project ECO-COMPASS aims to evaluate the potential applications of ecologically improved composite materials in the aviation sector in an international collaboration of Chinese and European partners. Natural fibers such as flax and ramie will be used for different types of reinforcements and sandwich cores. Furthermore, bio-based epoxy resins to substitute bisphenol-A based epoxy resins in secondary structures are under investigation. Adapted material protection technologies to reduce environmental influence and to improve fire resistance are needed to fulfil the demanding safety requirements in aviation. Modelling and simulation of chosen eco-composites aims for an optimized use of materials while a Life Cycle Assessment aims to prove the ecological advantages compared to synthetic state-of-the-art materials. This Special Issue provides selected papers from the project consortium partners.

High Angle of Attack Aerodynamics

High Angle of Attack Aerodynamics
Author : Josef Rom
Publisher : Springer Science & Business Media
Release Date : 2012-12-06
Category : Science
Total pages :399
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The aerodynamics of aircraft at high angles of attack is a subject which is being pursued diligently, because the modern agile fighter aircraft and many of the current generation of missiles must perform well at very high incidence, near and beyond stall. However, a comprehensive presentation of the methods and results applicable to the studies of the complex aerodynamics at high angle of attack has not been covered in monographs or textbooks. This book is not the usual textbook in that it goes beyond just presenting the basic theoretical and experimental know-how, since it contains reference material to practical calculation methods and technical and experimental results which can be useful to the practicing aerospace engineers and scientists. It can certainly be used as a text and reference book for graduate courses on subjects related to high angles of attack aerodynamics and for topics related to three-dimensional separation in viscous flow courses. In addition, the book is addressed to the aerodynamicist interested in a comprehensive reference to methods of analysis and computations of high angle of attack flow phenomena and is written for the aerospace scientist and engineer who is familiar with the basic concepts of viscous and inviscid flows and with computational methods used in fluid dynamics.

Rotary-Wing Aerodynamics

Rotary-Wing Aerodynamics
Author : W. Z. Stepniewski
Publisher : Courier Corporation
Release Date : 2013-04-22
Category : Technology & Engineering
Total pages :640
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DIVClear, concise text covers aerodynamic phenomena of the rotor and offers guidelines for helicopter performance evaluation. Originally prepared for NASA. Prefaces. New Indexes. 10 black-and-white photos. 537 figures. /div

Government Reports Index

Government Reports Index
Author : Anonim
Publisher : Unknown
Release Date : 1972
Category : Government publications
Total pages :129
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The Power for Flight

The Power for Flight
Author : Jeremy R. Kinney
Publisher : Government Printing Office
Release Date : 2018-02-15
Category : Airplanes
Total pages :324
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The NACA and aircraft propulsion, 1915-1958 -- NASA gets to work, 1958-1975 -- The shift toward commercial aviation, 1966-1975 -- The quest for propulsive efficiency, 1976-1989 -- Propulsion control enters the computer era, 1976-1998 -- Transiting to a new century, 1990-2008 -- Toward the future

High Performance Computing in Science and Engineering ' 18

High Performance Computing in Science and Engineering ' 18
Author : Wolfgang E. Nagel,Dietmar H. Kröner,Michael M. Resch
Publisher : Springer
Release Date : 2019-06-07
Category : Computers
Total pages :514
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This book presents the state-of-the-art in supercomputer simulation. It includes the latest findings from leading researchers using systems from the High Performance Computing Center Stuttgart (HLRS) in 2018. The reports cover all fields of computational science and engineering ranging from CFD to computational physics and from chemistry to computer science with a special emphasis on industrially relevant applications. Presenting findings of one of Europe’s leading systems, this volume covers a wide variety of applications that deliver a high level of sustained performance. The book covers the main methods in high-performance computing. Its outstanding results in achieving the best performance for production codes are of particular interest for both scientists and engineers. The book comes with a wealth of color illustrations and tables of results.