Read and Download eBook Full
Author: Thomas J. Mueller
Publisher: AIAA
Published: 2001
Total Pages: 614
ISBN-13: 9781600864469
DOWNLOAD EBOOKThis title reports on the latest research in the area of aerodynamic efficency of various fixed-wing, flapping wing, and rotary wing concepts. It presents the progress made by over fifty active researchers in the field.
Author: Lung-Jieh Yang
Publisher:
Published: 2022
Total Pages: 0
ISBN-13: 9781032074139
DOWNLOAD EBOOK"Flapping wing vehicles (FWVs) have unique flight characteristics and the successful flight of such a vehicle depends upon efficient design of the flapping mechanisms while keeping the minimum weight of the structure. Flapping Wing Vehicles: Numerical and Experimental Approach discusses design and kinematic analysis of various flapping wing mechanisms, measurement of flap angle/flapping frequency, and computational fluid dynamic analysis of motion characteristics including manufacturing techniques. The book also includes wind tunnel experiments, high-speed photographic analysis of aerodynamic performance, soap film visualization of 3D down washing, studies on the effect of wing rotation, figure-of-eight motion characteristics, and more. Features: Covers all aspects of FWVs needed to design one and understand how and why it flies; Explains related engineering practices including flapping mechanism design, kinematic analysis, materials, manufacturing, and aerodynamic performance measures using wind tunnel experiments; Includes CFD analysis of 3D wing profile, formation flight of FWVs, and soap film visualization of flapping wings; Discusses dynamics and image-based control of a group of ornithopters; Explores indigenous PCB design for achieving altitude and attitude control This book is aimed at researchers and graduate students in mechatronics, materials, aerodynamics, robotics, biomimetics, vehicle design and MAV/UAV."--
Author: G.C.H.E. de Croon
Publisher: Springer
Published: 2015-11-26
Total Pages: 221
ISBN-13: 9401792089
DOWNLOAD EBOOKThis book introduces the topics most relevant to autonomously flying flapping wing robots: flapping-wing design, aerodynamics, and artificial intelligence. Readers can explore these topics in the context of the "Delfly", a flapping wing robot designed at Delft University in The Netherlands. How are tiny fruit flies able to lift their weight, avoid obstacles and predators, and find food or shelter? The first step in emulating this is the creation of a micro flapping wing robot that flies by itself. The challenges are considerable: the design and aerodynamics of flapping wings are still active areas of scientific research, whilst artificial intelligence is subject to extreme limitations deriving from the few sensors and minimal processing onboard. This book conveys the essential insights that lie behind success such as the DelFly Micro and the DelFly Explorer. The DelFly Micro, with its 3.07 grams and 10 cm wing span, is still the smallest flapping wing MAV in the world carrying a camera, whilst the DelFly Explorer is the world's first flapping wing MAV that is able to fly completely autonomously in unknown environments. The DelFly project started in 2005 and ever since has served as inspiration, not only to many scientific flapping wing studies, but also the design of flapping wing toys. The combination of introductions to relevant fields, practical insights and scientific experiments from the DelFly project make this book a must-read for all flapping wing enthusiasts, be they students, researchers, or engineers.
Author: Wei Shyy
Publisher: Cambridge University Press
Published: 2013-08-19
Total Pages: 321
ISBN-13: 1107037263
DOWNLOAD EBOOKFor anyone interested in the aerodynamics, structural dynamics and flight dynamics of small birds, bats, insects and air vehicles (MAVs).
Author: Csaba Hefler
Publisher: Cambridge University Press
Published: 2021-05-27
Total Pages: 104
ISBN-13: 110887522X
DOWNLOAD EBOOKInsect-scale flapping wing flight vehicles can conduct environmental monitoring, disaster assessment, mapping, positioning and security in complex and challenging surroundings. To develop bio-inspired flight vehicles, systematic probing based on the particular category of flight vehicles is needed. This Element addresses the aerodynamics, aeroelasticity, geometry, stability and dynamics of flexible flapping wings in the insect flight regime. The authors highlight distinct features and issues, contrast aerodynamic stability between rigid and flexible wings, present the implications of the wing-aspect ratio, and use canonical models and dragonflies to elucidate scientific insight as well as technical capabilities of bio-inspired design.
Author: Jadran Lenarčič
Publisher: Springer Science & Business Media
Published: 2008-05-29
Total Pages: 472
ISBN-13: 1402086008
DOWNLOAD EBOOKThis book presents the most recent research advances in the theory, design, control and application of robotic systems, which are intended for a variety of purposes such as manipulation, manufacturing, automation, surgery, locomotion and biomechanics.
Author: Wei Shyy
Publisher: Cambridge University Press
Published: 2011-04-28
Total Pages: 0
ISBN-13: 9780521204019
DOWNLOAD EBOOKLow 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 primary focus of this book is the aerodynamics associated with fixed and flapping wings. The book consider 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, including leading-edge vortex, rapid pitch-up and rotational circulation, wake capture, and clap-and-fling.
Author: Yasuki Nakayama
Publisher:
Published: 1988
Total Pages: 172
ISBN-13:
DOWNLOAD EBOOKFlow Visualization always plays an important role in understanding flow phenomena and contributes significantly to the physical intuitive reasonong necessary to successfully apply the knowledge gained to real life situations. This book is designed to enhance the understanding of basic flow phenomena through over 200 high quality flow visualization photographs, some in colour, and explanations. The book opens with a summary of flow visualization methods, and then proceeds to present flow phenomena as revealed by various flow visualization techniques. The treatment ranges from fundamental aspects, such as laminar and turbulent flow, to engineering applications; for example, understanding why cavitation damage occurred on the runner of a Francis turbine. Current and new visualization techniques are employed such that invisible flow, as in air and water, is made clearly visible and comprehensible. Visualized Flow was compiled and edited under the guidance of the Japanese Society of Mechanical Engineers. This English edition will be indispensable to engineers, researchers and students in understanding flow phenomena across the wide range of sciences wherever fluid flow is important.
Author: Dan Mihai Ştefănescu
Publisher: Springer Nature
Published: 2020-01-27
Total Pages: 257
ISBN-13: 3030353222
DOWNLOAD EBOOKPart I introduces the basic “Principles and Methods of Force Measurement” according to a classification into a dozen of force transducerstypes: resistive, inductive, capacitive, piezoelectric, electromagnetic, electrodynamic, magnetoelastic, galvanomagnetic (Hall-effect), vibrating wires, (micro)resonators, acoustic and gyroscopic. Two special chapters refer to force balance techniques and to combined methods in force measurement. Part II discusses the “(Strain Gauge) Force Transducers Components”, evolving from the classical force transducer to the digital / intelligent one, with the incorporation of three subsystems (sensors, electromechanics and informatics). The elastic element (EE) is the “heart” of the force transducer and basically determines its performance. A 12-type elastic element classification is proposed (stretched / compressed column or tube, bending beam, bending and/or torsion shaft, middle bent bar with fixed ends, shear beam, bending ring, yoke or frame, diaphragm, axial-stressed torus, axisymmetrical and voluminous EE), with emphasis on the optimum place of the strain gauges. The main properties of the associated Wheatstone bridge, best suited for the parametrical transducers, are examined, together with the appropriate electronic circuits for SGFTs. The handbook fills a gap in the field of Force Measurement, both experts and newcomers, no matter of their particular interest, finding a lot of useful and valuable subjects in the area of Force Transducers; in fact, it is the first specialized monograph in this inter- and multidisciplinary field.
Author: Theodore Wu
Publisher: Springer Science & Business Media
Published: 2013-04-17
Total Pages: 582
ISBN-13: 1475713266
DOWNLOAD EBOOKThe Symposium on Swimming and Flying in Nature which was held at the California Institute of Technology, Pasadena, California from July 8-12, 1974 was conceived with the objective of providing an interdisciplinary forum for the discussion of funda mental biological and fluid mechanical aspects of these forms of natura110comotion. It was the earnest hope of all concerned in the organization of the Symposium that the exchange of knowledge and interaction of ideas from the disciplines involved would stimu late new research in this developing field. If the liveliness of the discussion generated among the 250 or so participants is any measure, then this objective was fulfilled to a significant degree. These two companion volumes contain the manuscripts of the papers presented during the Symposium. It is hoped that this permanent record will serve to perpetuate the enthusiasm and active thought generated during those days in Pasadena. The first volume contains the proceedings of the first two days of the confer ence (Sessions I to IV) which concentrated on the locomotion of micro-organisms. The second volume (Sessions V to VIII) deals with the propulsion of larger fish, insects and birds. Professor Sir James Lighthill's Special Invited Lecture which opened the Symposium is contained in the second volume, rather than the first, since it deals with natural flight.
