Morphing Aerospace Vehicles And Structures

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Morphing Aerospace Vehicles And Structures

Author : John Valasek
ISBN : 9781119940302
Genre : Technology & Engineering
File Size : 35.8 MB
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Morphing Aerospace Vehicles and Structures provides a highly timely presentation of the state-of-the-art, future directions and technical requirements of morphing aircraft. Divided into three sections it addresses morphing aircraft, bio-inspiration, and smart structures with specific focus on the flight control, aerodynamics, bio-mechanics, materials, and structures of these vehicles as well as power requirements and the use of advanced piezo materials and smart actuators. The tutorial approach adopted by the contributors, including underlying concepts and mathematical formulations, unifies the methodologies and tools required to provide practicing engineers and applied researchers with the insight to synthesize morphing air vehicles and morphing structures, as well as offering direction for future research.
Category: Technology & Engineering

Morphing Wing Technologies

Author : Sergio Ricci
ISBN : 9780081009697
Genre : Technology & Engineering
File Size : 55.22 MB
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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
Category: Technology & Engineering

Advances In Structural And Multidisciplinary Optimization

Author : Axel Schumacher
ISBN : 9783319679884
Genre : Science
File Size : 25.92 MB
Format : PDF
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The volume includes papers from the WSCMO conference in Braunschweig 2017 presenting research of all aspects of the optimal design of structures as well as multidisciplinary design optimization where the involved disciplines deal with the analysis of solids, fluids or other field problems. Also presented are practical applications of optimization methods and the corresponding software development in all branches of technology.
Category: Science

Introduction To Aerospace Engineering With A Flight Test Perspective

Author : Stephen Corda
ISBN : 9781118953365
Genre : Technology & Engineering
File Size : 64.22 MB
Format : PDF
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Comprehensive textbook which introduces the fundamentals of aerospace engineering with a flight test perspective Introduction to Aerospace Engineering with a Flight Test Perspective is an introductory level text in aerospace engineering with a unique flight test perspective. Flight test, where dreams of aircraft and space vehicles actually take to the sky, is the bottom line in the application of aerospace engineering theories and principles. Designing and flying the real machines are often the reasons that these theories and principles were developed. This book provides a solid foundation in many of the fundamentals of aerospace engineering, while illuminating many aspects of real-world flight. Fundamental aerospace engineering subjects that are covered include aerodynamics, propulsion, performance, and stability and control. Key features: Covers aerodynamics, propulsion, performance, and stability and control. Includes self-contained sections on ground and flight test techniques. Includes worked example problems and homework problems. Suitable for introductory courses on Aerospace Engineering. Excellent resource for courses on flight testing. Introduction to Aerospace Engineering with a Flight Test Perspective is essential reading for undergraduate and graduate students in aerospace engineering, as well as practitioners in industry. It is an exciting and illuminating read for the aviation enthusiast seeking deeper understanding of flying machines and flight test.
Category: Technology & Engineering

Modeling The Effect Of Damage In Composite Structures

Author : Christos Kassapoglou
ISBN : 9781119013211
Genre : Technology & Engineering
File Size : 63.86 MB
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Comprehensively covers new and existing methods for the design and analysis of composites structures with damage present Provides efficient and accurate approaches for analysing structures with holes and impact damage Introduces a new methodology for fatigue analysis of composites Provides design guidelines, and step by step descriptions of how to apply the methods, along with evaluation of their accuracy and applicability Includes problems and exercises Accompanied by a website hosting lecture slides and solutions
Category: Technology & Engineering

Design And Analysis Of Composite Structures

Author : Christos Kassapoglou
ISBN : 9781118536940
Genre : Technology & Engineering
File Size : 32.93 MB
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New edition updated with additional exercises and two newchapters. Design and Analysis of Composite Structures: WithApplications to Aerospace Structures, 2nd Edition builds onthe first edition and includes two new chapters on compositefittings and the design of a composite panel, as well additionalexercises. The book enables graduate students andengineers to generate meaningful and robust designs of complexcomposite structures. A compilation of analysis and design methodsfor structural components made of advanced composites, it beginswith simple parts such as skins and stiffeners and progressesthrough to applications such as entire components of fuselages andwings. It provides a link between theory and day-to-day designpractice, using theory to derive solutions that are applicable tospecific structures and structural details used in industry. Starting with the basic mathematical derivation followed bysimplifications used in real-world design,Design and Analysisof Composite Structures: With Applications to Aerospace Structures,2nd Edition presents the level of accuracy and range ofapplicability of each method along with design guidelines derivedfrom experience combined with analysis. The author solves indetail examples taken from actual applications to show how theconcepts can be applied, solving the same design problem withdifferent methods based on different drivers (e.g. cost or weight)to show how the final configuration changes as the requirements andapproach change. Each chapter is followed by exercises thatrepresent specific design problems often encountered in theaerospace industry but which are also applicable in the in theautomotive, marine, and construction industries. Updated to include additional exercises, that represent realdesign problems encountered in the aerospace industry, but whichare also applicable in the in the automotive, marine, andconstruction industries. Includes two new chapters. One on composite fittings andanother on application and the design of a composite panel. Provides a toolkit of analysis and design methods that enableengineers and graduate students to generate meaningful and robustdesigns of complex composite structures. Provides solutions that can be used in optimization schemeswithout having to run finite element models at each iteration; thusspeeding up the design process and allowing the examination of manymore alternatives than traditional approaches. Supported by a complete set of lecture slides and solutions tothe exercises hosted on a companion website for instructors. An invaluable resource for Engineers and graduate students inaerospace engineering as well as Graduate students and engineers inmechanical, civil and marine engineering.
Category: Technology & Engineering

Introduction To Aircraft Aeroelasticity And Loads

Author : Jan R. Wright
ISBN : 9781118700433
Genre : Technology & Engineering
File Size : 70.41 MB
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Introduction to Aircraft Aeroelasticity and Loads, SecondEdition is an updated new edition offering comprehensivecoverage of the main principles of aircraft aeroelasticity andloads. For ease of reference, the book is divided into three partsand begins by reviewing the underlying disciplines of vibrations,aerodynamics, loads and control, and then goes on to describesimplified models to illustrate aeroelastic behaviour and aircraftresponse and loads for the flexible aircraft before introducingsome more advanced methodologies. Finally, it explains howindustrial certification requirements for aeroelasticity and loadsmay be met and relates these to the earlier theoretical approachesused. Key features of this new edition include: Uses a unified simple aeroelastic model throughout thebook Major revisions to chapters on aeroelasticity Updates and reorganisation of chapters involving FiniteElements Some reorganisation of loads material Updates on certification requirements Accompanied by a website containing a solutions manual, andMATLAB® and SIMULINK® programs that relate to the modelsused For instructors who recommend this textbook, a series oflecture slides are also available Introduction to Aircraft Aeroelasticity and Loads, SecondEdition is a must-have reference for researchers andpractitioners working in the aeroelasticity and loads fields, andis also an excellent textbook for senior undergraduate and graduatestudents in aerospace engineering.
Category: Technology & Engineering

Theoretical And Computational Aerodynamics

Author : Tapan K. Sengupta
ISBN : 9781118787571
Genre : Technology & Engineering
File Size : 67.42 MB
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Aerodynamics has seen many developments due to the growth of scientific computing, which has caused the design cycle time of aerospace vehicles to be heavily reduced. Today computational aerodynamics appears in the preliminary step of a new design, relegating costly, time-consuming wind tunnel testing to the final stages of design. Theoretical and Computational Aerodynamics is aimed to be a comprehensive textbook, covering classical aerodynamic theories and recent applications made possible by computational aerodynamics. It starts with a discussion on lift and drag from an overall dynamical approach, and after stating the governing Navier-Stokes equation, covers potential flows and panel method. Low aspect ratio and delta wings (including vortex breakdown) are also discussed in detail, and after introducing boundary layer theory, computational aerodynamics is covered for DNS and LES. Other topics covered are on flow transition to analyse NLF airfoils, bypass transition, streamwise and cross-flow instability over swept wings, viscous transonic flow over airfoils, low Reynolds number aerodynamics, high lift devices and flow control. Key features: Blends classical theories of incompressible aerodynamics to panel methods Covers lifting surface theories and low aspect ratio wing and wing-body aerodynamics Presents computational aerodynamics from first principles for incompressible and compressible flows Covers unsteady and low Reynolds number aerodynamics Includes an up-to-date account of DNS of airfoil aerodynamics including flow transition for NLF airfoils Contains chapter problems and illustrative examples Accompanied by a website hosting problems and a solution manual Theoretical and Computational Aerodynamics is an ideal textbook for undergraduate and graduate students, and is also aimed to be a useful resource book on aerodynamics for researchers and practitioners in the research labs and the industry.
Category: Technology & Engineering

Understanding Aerodynamics

Author : Doug McLean
ISBN : 9781118454220
Genre : Technology & Engineering
File Size : 62.79 MB
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Much-needed, fresh approach that brings a greater insight intothe physical understanding of aerodynamics Based on the author’s decades of industrial experiencewith Boeing, this book helps students and practicing engineers togain a greater physical understanding of aerodynamics. Relying onclear physical arguments and examples, Mclean provides amuch-needed, fresh approach to this sometimes contentious subjectwithout shying away from addressing "real" aerodynamic situationsas opposed to the oversimplified ones frequently used formathematical convenience. Motivated by the belief that engineeringpractice is enhanced in the long run by a robust understanding ofthe basics as well as real cause-and-effect relationships that liebehind the theory, he provides intuitive physical interpretationsand explanations, debunking commonly-held misconceptions andmisinterpretations, and building upon the contrasts provided bywrong explanations to strengthen understanding of the rightones. Provides a refreshing view of aerodynamics that is based on theauthor’s decades of industrial experience yet is alwaystied to basic fundamentals. Provides intuitive physical interpretations and explanations,debunking commonly-held misconceptions and misinterpretations Offers new insights to some familiar topics, for example, whatthe Biot-Savart law really means and why it causes so muchconfusion, what “Reynolds number” and“incompressible flow” really mean, and a real physicalexplanation for how an airfoil produces lift. Addresses "real" aerodynamic situations as opposed to theoversimplified ones frequently used for mathematical convenience,and omits mathematical details whenever the physical understandingcan be conveyed without them.
Category: Technology & Engineering

Damage Assessment Of Structures Vii

Author : Luigi Garibaldi
ISBN : 9783038131304
Genre : Technology & Engineering
File Size : 64.56 MB
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Volume is indexed by Thomson Reuters CPCI-S (WoS). This collection covers the many activities, relevant to the damage assessment of engineering structures and systems, including the signal processing of sensor measurements and analytical techniques, as well as experimental case studies.
Category: Technology & Engineering

Advances In Intelligent And Autonomous Aerospace Systems

Author : John Valasek
ISBN : 1600868975
Genre : Technology & Engineering
File Size : 36.6 MB
Format : PDF
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Research advances in embedded computational intelligence, communication, control, and new mechanisms for sensing, actuation, and adaptation hold the promise to transform aerospace. The result will be air and space vehicles, propulsion systems, exploration systems, and vehicle management systems that respond more quickly, provide large-scale distributed coordination, work in dangerous or inaccessible environments, and augment human capabilities. Advances in Intelligent and Autonomous Aerospace Systems seeks to provide both the aerospace researcher and the practicing aerospace engineer with an exposition on the latest innovative methods and approaches that focus on intelligent and autonomous aerospace systems. The chapters are written by leading researchers in this field, and include ideas, directions, and recent results on intelligent aerospace research issues with a focus on dynamics and control, systems engineering, and aerospace design. The content on uncertainties, modeling of large and highly non-linear complex systems, robustness, and adaptivity is intended to be useful in both the sub-system and the overall system level design and analysis of various aerospace vehicles.A broad spectrum of methods and approaches are presented, including: * Bio-Inspiration * Fuzzy Logic * Genetic Algorithms * Q-Learning * Markov Decision Processes * Approximate Dynamic Programming * Artificial Neural Networks * Probabilistic Maps * Multi-Agent Systems * Kalman, particle, and confidence filtering
Category: Technology & Engineering

World Forum On Smart Materials And Smart Structures Technology

Author : B.F. Spencer Jr.
ISBN : 143982844X
Genre : Technology & Engineering
File Size : 65.96 MB
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This collection of almost 300 articles provides the critical knowledge and technological bases required for meeting one of the ultimate engineering challenges: the design and construction of smart structures and systems. It meets that trend that research in smart materials and structures seeks to apply multifunctional capabilities. Contributions deal with the use of new and existing materials to develop structures and systems that are capable of self-sensing, self-diagnosing, self-healing. Moreover such systems should be able to give adaptive responses to prevent loss and catastrophe, to minimize costs, and to prolong service life. Intended for researchers and practitioners from a broad range of disciplines. Set of book of abstracts (840 pp) and full paper, searchable CD-ROM (1994 pp).
Category: Technology & Engineering

Aerospace America

Author :
ISBN : UCSD:31822036929321
Genre : Aeronautics
File Size : 80.48 MB
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Category: Aeronautics

Flight Dynamics Simulation And Control

Author : Ranjan Vepa
ISBN : 9781466573369
Genre : Technology & Engineering
File Size : 85.14 MB
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Explore Key Concepts and Techniques Associated with Control Configured Elastic Aircraft A rapid rise in air travel in the past decade is driving the development of newer, more energy-efficient, and malleable aircraft. Typically lighter and more flexible than the traditional rigid body, this new ideal calls for adaptations to some conventional concepts. Flight Dynamics, Simulation, and Control: For Rigid and Flexible Aircraft addresses the intricacies involved in the dynamic modelling, simulation, and control of a selection of aircraft. This book covers the conventional dynamics of rigid aircraft, explores key concepts associated with control configured elastic aircraft, and examines the use of linear and non-linear model-based techniques and their applications to flight control. In addition, it reveals how the principles of modeling and control can be applied to both traditional rigid and modern flexible aircraft. Understand the Basic Principles Governing Aerodynamic Flows This text consists of ten chapters outlining a range of topics relevant to the understanding of flight dynamics, regulation, and control. The book material describes the basics of flight simulation and control, the basics of nonlinear aircraft dynamics, and the principles of control configured aircraft design. It explains how elasticity of the wings/fuselage can be included in the dynamics and simulation, and highlights the principles of nonlinear stability analysis of both rigid and flexible aircraft. The reader can explore the mechanics of equilibrium flight and static equilibrium, trimmed steady level flight, the analysis of the static stability of an aircraft, static margins, stick-fixed and stick-free, modeling of control surface hinge-moments, and the estimation of the elevator for trim. Introduces case studies of practical control laws for several modern aircraft Explores the evaluation of aircraft dynamic response Applies MATLAB®/Simulink® in determining the aircraft’s response to typical control inputs Explains the methods of modeling both rigid and flexible aircraft for controller design application Written with aerospace engineering faculty and students, engineers, and researchers in mind, Flight Dynamics, Simulation, and Control: For Rigid and Flexible Aircraft serves as a useful resource for the exploration and study of simulation of flight dynamics.
Category: Technology & Engineering

Design And Structural Analysis Of Morphing Wings

Author : Nicholas Alexander Fernandez
ISBN : OCLC:1137158643
Genre :
File Size : 48.22 MB
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Many natural flyers and marine swimmers can morph their wings during a number of unsteady maneuverings. With such wing morphing they are able to control the unsteady aerodynamic forces. A number of man-made flyers, such as unmanned aerial vehicles and micro air vehicles, fly in comparable Reynolds number range, but they are yet to acquire similar morphing capabilities as natural flyers or swimmers. Moreover, the knowledge of fluid structural interaction (FSI) of such morphing wings is not well developed. Hence there is a need to investigate the FSI of morphing wings. In this thesis, a morphing wing was designed and its FSI was investigated. The wing was designed with the help of advanced 3D printing and the morphing capabilities utilized servo driven actuators. The design enabled the wing to execute spanwise bending, twisting and combined bending and twisting during a number of unsteady maneuverings. In the present work, the effect of gradual acceleration on the resultant unsteady forcing was investigated. FEA simulations were performed in order to gauge the response of the wing in different scenarios. A flat plate wing was towed in a 6-m-long towing tank and force data was collected using a 6-dof force sensor. With this method of morphing, future experiments can be performed for different unsteady cases. The analysis performed in this thesis will also be helpful in understanding more complex FSI problems applicable to morphing wings.
Category:

Shape Memory Polymers For Aerospace Applications

Author : Gyaneshwar Tandon
ISBN : 9781605951188
Genre : Technology & Engineering
File Size : 79.56 MB
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Shape memory polymer chemistry and design for active materials and morphing structuresCovers shape memory in polymers, alloys and composites, including models and testing Essential equations for analysis of the structure, behavior and properties of SMPsMany graphs and figures in full color A technical analysis of shape-memory polymers (SMPs) and their composites, particularly in adaptive materials, this volume introduces designs linking SMPs to metals, elastomers, foams, nanoparticles and other materials, as well as the engineering of SMPs directly into parts and active (morphing) components. Attention is given to controlled structures activated by light, heat, electricity and other energy sources, as well as the connection of SMPs with actuators. Part one discusses the activation and analysis of the shape memory response, including shape recovery. Subsequent chapters offer modeling and other tools for investigating the SMP response, including shape recovery. Part three combines the response with micro- and macro-scale reinforcing phases for producing SMP composites, and the following section discusses synthetic and nanostructured customization of the shape memory polymer response. The final section focuses on specific SMP concepts in aircraft, including morphing skins, wings, unimorph composite actuators for deployment, and variable stiffness elements.
Category: Technology & Engineering