Libros de Ingeniería aeronáutica y astronáutica, página 3 de 53

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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.

El objetivo de la aerodinámica civil es la estimación de las cargas aerodinámicas (fuerzas y momentos) que genera el flujo del aire alrededor de los cuerpos inmersos en la capa límite terrestre. Pa

Fatigue of the pressurized fuselages of transport aircraft is a significant problem all builders and users of aircraft have to cope with for reasons associated with assuring a sufficient lifetime and safety, and formulating adequate inspection procedures. These aspects are all addressed in various formal protocols for creating and maintaining airworthiness, including damage tolerance considerations. In most transport aircraft, fatigue occurs in lap joints, sometimes leading to circumstances that threaten safety in critical ways. The problem of fatigue of lap joints has been considerably enlarged by the goal of extending aircraft lifetimes. Fatigue of riveted lap joints between aluminium alloy sheets, typical of the pressurized aircraft fuselage, is the major topic of the present book. The richly illustrated and well-structured chapters treat subjects such as: structural design solutions and loading conditions for fuselage skin joints; relevance of laboratory test results for simple lap joint specimens to riveted joints in a real structure; effect of various production and design related variables on the riveted joint fatigue behaviour; analytical and experimental results on load transmission in mechanically fastened lap joints; theoretical and experimental analysis of secondary bending and its implications for riveted joint fatigue performance; nucleation and shape development of fatigue cracks in riveted longitudinal lap joints; overview of experimental investigations into the multi-site damage for full scale fuselage panels and riveted lap joint specimens; fatigue crack growth and fatigue life prediction methodology for riveted lap joints; residual strength predictions for riveted lap joints in a fuselage structure. The major issues of each chapter are recapitulated in the last section.

There is increasing interest in the potential of UAV (Unmanned Aerial Vehicle) and MAV (Micro Air Vehicle) technology and their wide ranging applications including defence missions, reconnaissance and surveillance, border patrol, disaster zone assessment and atmospheric research. High investment levels from the military sector globally is driving research and development and increasing the viability of autonomous platforms as replacements for the remotely piloted vehicles more commonly in use. UAV/UAS pose a number of new challenges, with the autonomy and in particular collision avoidance, detect and avoid, or sense and avoid, as the most challenging one, involving both regulatory and technical issues. Sense and Avoid in UAS: Research and Applications covers the problem of detect, sense and avoid in UAS (Unmanned Aircraft Systems) in depth and combines the theoretical and application results by leading academics and researchers from industry and academia. Key features: Presents a holistic view of the sense and avoid problem in the wider application of autonomous systems Includes information on human factors, regulatory issues and navigation, control, aerodynamics and physics aspects of the sense and avoid problem in UAS Provides professional, scientific and reliable content that is easy to understand, and Includes contributions from leading engineers and researchers in the field Sense and Avoid in UAS: Research and Applications is an invaluable source of original and specialised information. It acts as a reference manual for practising engineers and advanced theoretical researchers and also forms a useful resource for younger engineers and postgraduate students. With its credible sources and thorough review process, Sense and Avoid in UAS: Research and Applications provides a reliable source of information in an area that is fast expanding but scarcely covered.

This book embarks on a contemporary analysis of the interaction of economics and law relating to air transport, delving into the major issues that plague the industry. It shows how some of the thorny and frustrating issues could be approached sensibly. Among the issues discussed are the anomaly of exponential growth of air transport which makes airline profitability continue to be poor; the legislative impediments in most countries that preclude direct foreign investment in the industry; the confounding and muddled mess behind the economics of aircraft engine emissions; and the inexplicable reality that, although civil aviation is primarily meant to meet the needs of the people of the world, State regulators have upended the equation and given priority to national interests over the interests of the passenger. The book will be of interest to economists and lawyers alike who deal with air transport issues, and also to academics and students in the area of transportation as well as regulators and airlines. Show More Show Less

Fatigue of the pressurized fuselages of transport aircraft is a significant problem all builders and users of aircraft have to cope with for reasons associated with assuring a sufficient lifetime and safety, and formulating adequate inspection procedures. These aspects are all addressed in various formal protocols for creating and maintaining airworthiness, including damage tolerance considerations. In most transport aircraft, fatigue occurs in lap joints, sometimes leading to circumstances that threaten safety in critical ways. The problem of fatigue of lap joints has been considerably enlarged by the goal of extending aircraft lifetimes. Fatigue of riveted lap joints between aluminium alloy sheets, typical of the pressurized aircraft fuselage, is the major topic of the present book. The richly illustrated and well-structured chapters treat subjects such as: structural design solutions and loading conditions for fuselage skin joints; relevance of laboratory test results for simple lap joint specimens to riveted joints in a real structure; effect of various production and design related variables on the riveted joint fatigue behaviour; analytical and experimental results on load transmission in mechanically fastened lap joints; theoretical and experimental analysis of secondary bending and its implications for riveted joint fatigue performance; nucleation and shape development of fatigue cracks in riveted longitudinal lap joints; overview of experimental investigations into the multi-site damage for full scale fuselage panels and riveted lap joint specimens; fatigue crack growth and fatigue life prediction methodology for riveted lap joints; residual strength predictions for riveted lap joints in a fuselage structure. The major issues of each chapter are recapitulated in the last section.

A microwave front-end refers the components in the receiver that process the signal at the original incoming frequency. This highly practical resource offers an in-depth understanding of microwave front end integration and how it is applied in the avionics field. Engineers find detailed guidance on circuit integration, including coverage of component miniaturization, hybrid and monolithic integrated circuits, and 3D design. The book addresses system integration with discussions on the combination of different avionic systems, single antenna design, top/bottom front end combination, and integration of passive and active antenna modules. This first-of-its-kind volume features unique material on novel structures of avionics front-ends and new strategies for microwave front-end design. Supported with nearly 200 illustrations and more than 160 equations, this book is a valuable professional reference and also serves well as a postgraduate textbook.

The structural materials used in airframe and propulsion systems influence the cost, performance, and safety of aircraft, and an understanding of the wide range of materials used and the issues surrounding them is essential for the student of aerospace engineering. Introduction to Aerospace Materials reviews the main structural and engine materials used in aircraft, helicopters, and spacecraft in terms of their production, properties, performance, and applications.The first three chapters of the book introduce the reader to the range of aerospace materials, focusing on recent developments and requirements. Following these introductory chapters the book moves on to discuss the properties and production of metals for aerospace structures, including chapters covering strengthening of metal alloys, mechanical testing, and the casting, processing, and machining of aerspace metals. The next 10 chapters look in depth at individual metals including aluminum, titanium, magnesium, steel, and superalloys, as well as the properties and processing of polymers, composites, and wood. Chapters on performance issues such as fracture, fatigue, and corrosion precede a chapter focusing on inspection and structural health monitoring of aerospace materials.Disposal/recycling and materials selection are covered in the final two chapters. With its comprehensive coverage of the main issues surrounding structural aerospace materials, Introduction to Aerospace Materials is essential reading for undergraduage students studying aerospace and aeronautical engineering. It will also be a valuable resource for postgraduate students and practicing aerospace engineers.

This book not only introduces the principles of INS, CNS and GNSS, the related filters and semi-physical simulation, but also systematically discusses the key technologies needed for integrated navigations of INS/GNSS, INS/CNS, and INS/CNS/GNSS, respectively. INS/CNS/GNSS integrated navigation technology has established itself as an effective tool for precise positioning navigation, which can make full use of the complementary characteristics of different navigation sub-systems and greatly improve the accuracy and reliability of the integrated navigation system. The book offers a valuable reference guide for graduate students, engineers and researchers in the fields of navigation and its control.Dr. Wei Quan, Dr. Jianli Li, Dr. Xiaolin Gong and Dr. Jiancheng Fang are all researchers at the Beijing University of Aeronautics and Astronautics.

Dietrich Kuchemann''s The Aerodynamic Design of Aircraft is as relevant and forward looking today as when it was first published in 1978. It comprises the philosophy and life''s work of a unique and visionary intellect.Unlike most engineering texts which focus on a set of tools, Kuchemann''s approach is to focus on the problem and its solution - what kind of flow is best for a given class of aircraft and how to achieve it? In this approach, Kuchemann fully embraces the true inverse nature of design; rather than answer ''what flow given the shape'' he strives to answer ''what flow given the purpose'' and then ''what shape given the flow.'' Kuchemann establishes three classes of aircraft based on the character of flow involved. Each class is suitable for a distinct cruise speed regime: classical and swept aircraft for subsonic and transonic cruise, slender-wing aircraft for supersonic cruise, and wave-rider aircraft for hypersonic cruise.Based upon material Kuchemann taught in a course at Imperial College London, the physical insight and intuition conveyed by this text are timeless. With its republication, Dietrich Kuchemann''s influence will extend to the next generation of aerospace industry students and practitioners and the vehicles they will produce.

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 current 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 subsystem and the overall system-level design and analysis of various aerospace vehicles. A broad spectrum of methods and approaches are presented, including:Bio-inspirationFuzzy logicGenetic algorithmsQ-learningMarkov decision processesApproximate dynamic programmingArtificial neural networksProbabilistic mapsMulti-agent systemsKalman, particle, and confidence filtering

Over the last few decades, both the aeronautics and space disciplines have greatly influenced advances in controls, sensors, data fusion and navigation. Many of those achievements that made the word aerospace synonymous with hightech were enabled by innovations in guidance, navigation and control.Europe has seen a strong trans-national consolidation process in aerospace over the last few decades. Most of the visible products, like commercial aircraft, fighters, helicopters, satellites, launchers or missiles, are not made by a single country they are the fruits of cooperation. No European country by itself hosts a specialized guidance, navigation and controls community large enough to cover the whole spectrum of disciplines. However, on a European scale, mutual exchange of ideas, concepts and solutions is enriching for all. The 1st CEAS Specialist Conference on Guidance, Navigation and Control is an attempt to bring this community together.This book is a selection of papers presented at the conference. All submitted papers have gone through a formal review process in compliance with good journal practices. The best papers have been recommended by the reviewers to be published in this book.

Designing Future-Oriented Airline Businesses is the eighth Ashgate book by Nawal K. Taneja to address the ongoing challenges and opportunities facing all generations of airlines. Firstly, it challenges and encourages airline managements to take a deeper dive into new ways of doing business. Secondly, it provides a framework for identifying and developing strategies and capabilities, as well as executing them efficiently and effectively, to change the focus from cost reduction to revenue enhancement and from competitive advantage to comparative advantage.Based on the authors own extensive experience and ongoing work in the global airline industry, as well as through a synthesis of leading business practices both inside and outside of the industry, Designing Future-Oriented Airline Businesses sets out to demystify numerous concepts being discussed within the airline industry and to facilitate managements to identify and articulate the boundaries of their business models. It provides material from which managements can set about answering the key questions, especially with respect to strategies, capabilities and execution, and pursue an effective redesign of their business.As with the authors previous books, the primary audience is senior-level practitioners of differing generations of airlines worldwide as well as related businesses. The material presented continues to be at a pragmatic level, not an academic exercise, to lead managements to ask themselves and their teams some critical thought-provoking questions.

Unmanned air vehicles are becoming increasingly popular alternatives for private applications which include, but are not limited to, fire fighting, search and rescue, atmospheric data collection, and crop surveys, to name a few. Among these vehicles are avian-inspired, flapping-wing designs, which are safe to operate near humans and are required to carry payloads while achieving manoeuverability and agility in low speed flight. Conventional methods and tools fall short of achieving the desired performance metrics and requirements of such craft.Flight dynamics and system identification for modern feedback control provides an in-depth study of the difficulties associated with achieving controlled performance in flapping-wing, avian-inspired flight, and a new model paradigm is derived using analytical and experimental methods, with which a controls designer may then apply familiar tools. This title consists of eight chapters and covers flapping-wing aircraft and flight dynamics, before looking at nonlinear, multibody modelling as well as flight testing and instrumentation. Later chapters examine system identification from flight test data, feedback control and linearization.

Design and Development of Aircraft Systems, Second Edition is for people who want to understand how industry develops the customer requirement into a fully integrated, tested, and qualified product that is safe to fly and fit for purpose. This edition has been updated to take into account the growth of unmanned air vehicles, together with updates to all chapters to bring them in line with current design practice and technologies as taught on courses at BAE Systems and Cranfield, Bristol and Loughborough universities in the UK.Design and Development of Aircraft Systems, Second EditionProvides a holistic view of aircraft system design describing the interaction between all of the subsystems such as fuel system, navigation, flight control etc.Covers all aspects of design including systems engineering, design drivers, systems architectures, systems integration, modelling of systems, practical considerations, & systems examples.Incorporates essential new material on Unmanned Aircraft Systems (UAS).Design and Development of Aircraft Systems, Second Edition has been written to be generic and not to describe any single process. It complements other volumes by the authors, in particular Aircraft Systems, Third Edition and Civil Avionics Systems, and will inform readers of the work that is carried out by engineers in the aerospace industry to produce innovative and challenging yet safe and reliable systems and aircraft.

Optimal aircraft design is impossible without a parametric representation of the geometry of the airframe. We need a mathematical model equipped with a set of controls, or design variables, which generates different candidate airframe shapes in response to changes in the values of these variables. This model''s objectives are to be flexible and concise, and capable of yielding a wide range of shapes with a minimum number of design variables. Moreover, the process of converting these variables into aircraft geometries must be robust. Alas, flexibility, conciseness and robustness can seldom be achieved simultaneously.Aircraft Aerodynamic Design: Geometry and Optimization addresses this problem by navigating the subtle trade-offs between the competing objectives of geometry parameterization. It beginswith the fundamentals of geometry-centred aircraft design, followed by a review of the building blocks of computational geometries, the curve and surface formulations at the heart of aircraft geometry. The authors then cover a range of legacy formulations in the build-up towards a discussion of the most flexible shape models used in aerodynamic design (with a focus on lift generating surfaces). The book takes a practical approach and includes MATLAB, Python and Rhinoceros code, as well as real-life example case studies.Key features: - Covers effective geometry parameterization within the context of design optimization- Demonstrates how geometry parameterization is an important element of modern aircraft design- Includes code and case studies which enable the reader to apply each theoretical concept either as an aid to understanding or as a building block of their own geometry model- Accompanied by a website hosting codesAircraft Aerodynamic Design: Geometry and Optimization is a practical guide for researchers and practitioners in the aerospace industry, and a reference for graduate and undergraduate students in aircraft design and multidisciplinary design optimization.