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Flexible Wings
Author: Veda Stamps
Publisher:
ISBN: 0996035702
Pages: 296
Year: 2015
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Summer Stevenson an eleven-year-old military kid of mixed-race dreams of having a permanent home and swimming in the Olympics one day, just like her idol Olympian Lia Neal. But those things seem out of reach as her parents "the heroes" continually move the family from house to house like boxed-up toys. After their last move, she thought her life would never change, but now the moving truck is idling in front of her house again, this time taking the family to Valencia, a small town in southern California known for its bike trails, roller coasters and great schools. But things aren't so great for Summer. She worries constantly that her fighter-pilot mom could be redeployed at any moment, and she struggles to make new friends, finding herself in humiliating circumstances with her neighbors. Summer sees a glimmer of hope when her parents sign her up for competitive swimming, but she turns out to be the worst swimmer on the team Inspired by nature and drawing support from friendships both old and new, including those with Grandma "Bachaan," her coaches, and other kids on the swim team, Summer seeks the courage she'll need to tackle life's challenges. It isn't until her little sister is in an accident that Summer truly finds the source of her inner strength and uses it to face her greatest fears head-on.
Modern Flexible Multi-Body Dynamics Modeling Methodology for Flapping Wing Vehicles
Author: Cornelia Altenbuchner, James E Hubbard Jr.
Publisher: Academic Press
ISBN: 0128141379
Pages: 198
Year: 2017-09-15
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Modern Flexible Multi-Body Dynamics Modeling Methodology for Flapping Wing Vehicles presents research on the implementation of a flexible multi-body dynamic representation of a flapping wing ornithopter that considers aero-elasticity. This effort brings advances in the understanding of flapping wing flight physics and dynamics that ultimately leads to an improvement in the performance of such flight vehicles, thus reaching their high performance potential. In using this model, it is necessary to reduce body accelerations and forces of an ornithopter vehicle, as well as to improve the aerodynamic performance and enhance flight kinematics and forces which are the design optimization objectives. This book is a useful reference for postgraduates in mechanical engineering and related areas, as well as researchers in the field of multibody dynamics. Uses Lagrange equations of motion in terms of a generalized coordinate vector of the rigid and flexible bodies in order to model the flexible multi-body system Provides flight verification data and flight physics of highly flexible ornithoptic vehicles Includes an online companion site with files/codes used in application examples
An Introduction to Flapping Wing Aerodynamics
Author: Wei Shyy, Hikaru Aono, Chang-kwon Kang, Hao Liu
Publisher: Cambridge University Press
ISBN: 1107067987
Pages:
Year: 2013-08-19
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This is an ideal book for graduate students and researchers interested in the aerodynamics, structural dynamics and flight dynamics of small birds, bats and insects, as well as of micro air vehicles (MAVs), which present some of the richest problems intersecting science and engineering. The agility and spectacular flight performance of natural flyers, thanks to their flexible, deformable wing structures, as well as to outstanding wing, tail and body coordination, is particularly significant. To design and build MAVs with performance comparable to natural flyers, it is essential that natural flyers' combined flexible structural dynamics and aerodynamics are adequately understood. The primary focus of this book is to address the recent developments in flapping wing aerodynamics. This book extends the work presented in Aerodynamics of Low Reynolds Number Flyers (Shyy et al. 2008).
Wind-tunnel Investigation of Ram-air-inflated All-flexible Wings of Aspect Ratios 1.0 to 3.0
Author: George M. Ware, James L. Hassell
Publisher:
ISBN:
Pages: 107
Year: 1986
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Read: 804

Green Aviation
Author: Ramesh Agarwal, Fayette Collier, Andreas Schaefer, Allan Seabridge
Publisher: John Wiley & Sons
ISBN: 1118866509
Pages: 536
Year: 2016-09-20
View: 1171
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Green Aviation is the first authoritative overview of both engineering and operational measures to mitigate the environmental impact of aviation. It addresses the current status of measures to reduce the environmental impact of air travel. The chapters cover such items as: Engineering and technology-related subjects (aerodynamics, engines, fuels, structures, etc.), Operations (air traffic management and infrastructure) Policy and regulatory aspects regarding atmospheric and noise pollution. With contributions from leading experts, this volume is intended to be a valuable addition, and useful resource, for aerospace manufacturers and suppliers, governmental and industrial aerospace research establishments, airline and aviation industries, university engineering and science departments, and industry analysts, consultants, and researchers.
The Performance of Flexible Wings
Author: Grant Shirreffs, P. S. Jackson, University of Auckland. Department of Mechanical Engineering
Publisher:
ISBN:
Pages: 101
Year: 1986
View: 727
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Aerodynamics of Low Reynolds Number Flyers
Author: Wei Shyy, Yongsheng Lian, Jian Tang, Dragos Viieru, Hao Liu
Publisher: Cambridge University Press
ISBN: 113946891X
Pages:
Year: 2007-10-22
View: 883
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Low Reynolds number aerodynamics is important to a number of natural and man-made flyers. Birds, bats, and insects have been of interest to biologists for years, and active study in the aerospace engineering community, motivated by interest in micro air vehicles (MAVs), has been increasing rapidly. The focus of this book is the aerodynamics associated with fixed and flapping wings. The book considers both biological flyers and MAVs, including a summary of the scaling laws which relate the aerodynamics and flight characteristics to a flyer's sizing on the basis of simple geometric and dynamics analyses, structural flexibility, laminar-turbulent transition, airfoil shapes, and unsteady flapping wing aerodynamics. The interplay between flapping kinematics and key dimensionless parameters such as the Reynolds number, Strouhal number, and reduced frequency is highlighted. The various unsteady lift enhancement mechanisms are also addressed.
Calculation of the Aerodynamic Loading of Flexible Wings of Arbitrary Plan Form and Stiffness
Author: Franklin W. Diederich
Publisher:
ISBN:
Pages: 52
Year: 1949
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A method is presented for calculating the aerodynamic loading, the divergence speed, and certain stability derivatives of wings and tail surfaces of arbitrary plan form and stiffness. Computing forms, tables of numerical constants required in the analysis, and an illustrative example are included.
Control of Flexible Structures
Author: Kirsten A. Morris
Publisher: American Mathematical Soc.
ISBN: 0821892010
Pages: 243
Year: 1993
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Flexible structures arise in significant important areas of application, such as robotics, large space structures, and antenna control. Difficulties related to sensing and identification hamper control of such systems. These problems require collaboration between mathematicians and engineers. To promote such collaboration, the Fields Institute sponsored a three-day workshop entitled "Problems in Sensing, Identification and Control of Flexible Structures" in June 1992. This volume contains papers presented at the workshop. Topics range from theoretical research on the well-posedness of systems, to experimental implementations of various controllers. A number of controller design techniques are discussed and compared, and there are several papers on modelling the complex dynamics of flexible structures. This book is a useful resource to control theorists, engineers, and mathematicians interested in this important field of research.
A method for the design of transonic flexible wings
Author: Leigh Ann Smith
Publisher:
ISBN:
Pages: 41
Year: 1990
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An investigation was made in the Langley gust tunnel of a flexible-wing model with the semichord line swept back 45 degrees to obtain experimental data on the amount of gust-load alleviation that might be expected as a result of the wings flexing under load. The results indicated that unless adverse pitching motion could be eliminated or reduced the over-all load reduction would be small. The net reduction in bending moment, however, may be appreciable.
An Introduction to Flapping Wing Aerodynamics
Author: Wei Shyy, Hikaru Aono, Chang-kwon Kang, Hao Liu
Publisher: Cambridge University Press
ISBN: 1107037263
Pages: 313
Year: 2013-08-19
View: 263
Read: 644
For anyone interested in the aerodynamics, structural dynamics and flight dynamics of small birds, bats, insects and air vehicles (MAVs).
Introduction to Aircraft Aeroelasticity and Loads
Author: Jan R. Wright, Jonathan Edward Cooper
Publisher: John Wiley & Sons
ISBN: 1118700430
Pages: 576
Year: 2014-12-16
View: 879
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Introduction to Aircraft Aeroelasticity and Loads, Second Edition is an updated new edition offering comprehensive coverage of the main principles of aircraft aeroelasticity and loads. For ease of reference, the book is divided into three parts and begins by reviewing the underlying disciplines of vibrations, aerodynamics, loads and control, and then goes on to describe simplified models to illustrate aeroelastic behaviour and aircraft response and loads for the flexible aircraft before introducing some more advanced methodologies. Finally, it explains how industrial certification requirements for aeroelasticity and loads may be met and relates these to the earlier theoretical approaches used. Key features of this new edition include: Uses a unified simple aeroelastic model throughout the book Major revisions to chapters on aeroelasticity Updates and reorganisation of chapters involving Finite Elements Some reorganisation of loads material Updates on certification requirements Accompanied by a website containing a solutions manual, and MATLAB® and SIMULINK® programs that relate to the models used For instructors who recommend this textbook, a series of lecture slides are also available Introduction to Aircraft Aeroelasticity and Loads, Second Edition is a must-have reference for researchers and practitioners working in the aeroelasticity and loads fields, and is also an excellent textbook for senior undergraduate and graduate students in aerospace engineering.
Aerodynamics of Low Reynolds Number Flyers
Author: Wei Shyy, Yongsheng Lian, Jian Tang, Dragos Viieru, Hao Liu
Publisher: Cambridge University Press
ISBN: 113946891X
Pages:
Year: 2007-10-22
View: 1136
Read: 650
Low Reynolds number aerodynamics is important to a number of natural and man-made flyers. Birds, bats, and insects have been of interest to biologists for years, and active study in the aerospace engineering community, motivated by interest in micro air vehicles (MAVs), has been increasing rapidly. The focus of this book is the aerodynamics associated with fixed and flapping wings. The book considers both biological flyers and MAVs, including a summary of the scaling laws which relate the aerodynamics and flight characteristics to a flyer's sizing on the basis of simple geometric and dynamics analyses, structural flexibility, laminar-turbulent transition, airfoil shapes, and unsteady flapping wing aerodynamics. The interplay between flapping kinematics and key dimensionless parameters such as the Reynolds number, Strouhal number, and reduced frequency is highlighted. The various unsteady lift enhancement mechanisms are also addressed.
Morphing Wing Technologies
Author: Sergio Ricci, Ferri M H Aliabadi, Ruxandra Botez, Fabio Semperlotti
Publisher: Butterworth-Heinemann
ISBN: 0081009690
Pages: 978
Year: 2017-10-27
View: 1164
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Morphing Wings Technologies: Large Commercial Aircraft and Civil Helicopters offers a fresh look at current research on morphing aircraft, including industry design, real manufactured prototypes and certification. This is an invaluable reference for students in the aeronautics and aerospace fields who need an introduction to the morphing discipline, as well as senior professionals seeking exposure to morphing potentialities. Practical applications of morphing devices are presented—from the challenge of conceptual design incorporating both structural and aerodynamic studies, to the most promising and potentially flyable solutions aimed at improving the performance of commercial aircraft and UAVs. Morphing aircraft are multi-role aircraft that change their external shape substantially to adapt to a changing mission environment during flight. The book consists of eight sections as well as an appendix which contains both updates on main systems evolution (skin, structure, actuator, sensor, and control systems) and a survey on the most significant achievements of integrated systems for large commercial aircraft. Provides current worldwide status of morphing technologies, the industrial development expectations, and what is already available in terms of flying systems Offers new perspectives on wing structure design and a new approach to general structural design Discusses hot topics such as multifunctional materials and auxetic materials Presents practical applications of morphing devices