Libros de Ingeniería aeronáutica y astronáutica, página 4 de 52

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.

- Offers the reader a better understanding of the current challenges facing the development of the future generation of unmanned aerial vehicles- Provides insights into problems that arise and have to be solved when achieving safe and efficient autonomous aerial load transportation- Presents detailed methods for experimental implementation of the proposed algorithmsUnmanned aerial vehicles are increasingly being used to perform complex functions or to assist humans to carry out dangerous missions within dynamic environments. Other possible applications include search and rescue, disaster relief operations, environmental monitoring, wireless surveillance networks, and cooperative manipulation. Creating these types of autonomous aerial vehicles places severe demands on the design of control schemes that can adapt to different scenarios and possible changes of vehicle dynamics. In this book we address the challenging problem of employing aerial robots to transport and manipulate loads safely and efficiently. Aerial load manipulation and transportation is extremely important in emergency rescue missions as well as for military and industrial purposes. This book gives an insight into problems that can arise in aerial load transportation and suggests control systems techniques to solve them. A key focus is given on modeling of the aerial load transportation system as well as stability and robustness analysis. A detailed design and derivation of control algorithms based on adaptive control, optimal control and reinforcement learning are discussed in detail. Furthermore, an experimental testbed and controller implementation are delineated.

Bonded Joints and Repairs to Composite Airframe Structures is a single source reference on the state of the art in this rapidly growing area.Covering analysis of both internal and external joints and repairs, as well as damage tolerance, non-destructive inspection and self-healing repairs, the book provides essential information not only on the joints and repairs themselves but, critically, on how they differ from bonds and repairs to metallic aircraft.Authors Wang and Duong bring a valuable combination of academic research and industry expertise to the book, drawing on cutting edge composite technology experience including analytic and computational leadership of damage and repair planning for the Boeing 787.Intended for graduate students, engineers and scientists working on the subject in aerospace industry, government agencies, research labs, and academia, Bonded Joints and Repairs to Composite Airframe Structures is an important addition to the limited literature in the area.AudienceAerospace engineers, researchers and graduate students dealing with aircraft structural integrity, safety and maintenance

Polymer composites are increasingly used in aerospace applications due to properties such as strength and durability compared to weight. Edited by two leading authorities in the field, this book summarises key recent research on design, manufacture and performance of composite components for aerospace structures. Part one reviews the design and manufacture of different types of composite component. Part two discusses aspects of performance such as stiffness, strength, fatigue, impact and blast behaviour, response to temperature and humidity as well as non-destructive testing and monitoring techniques.

With the standard go-to references in the area increasingly dated and hard to find, Aeroacoustics: Fundamentals and Applications in Aeropropulsion Systems fills the need for a modern take on the fundamental theory and applications relating to prediction and control of all major noise sources in aeropropulsion systems. Pulling in the latest knowledge and research advances, the book includes detailed consideration of both the physics of aerodynamic noise generation in aero-engines and the relating numerical prediction techniques. It also introduces the new vortex sound interaction models, transfer element method and combustion instability model developed by the book's author team, helping to disseminate Chinese aerospace findings amongst the global aerospace community. Focusing on propulsion systems from inlet to exit, including combustion noise, this new resource will aid graduate students, researchers and R&D engineers in solving the aircraft noise problems challenging the industry. It updates the knowledge-base on the sound source generated by aeropropulsion systems, from inlet to exit, including combustion noise. It covers new aerodynamic noise control technology aimed at the low-noise design of next generation aero-engines. It includes cutting-edge new models and methods developed by an author team led by the Editor-in-Chief of the Chinese Journal of Aeronautics and Astronautics.

Forget Hawaii or the Mediterranean. Soon very soon youll be able to add a much more exotic stamp to your passport: space. How will you get there, what will the trip be like and how much training will you need? All you need to know is right here in this guide. Tourists in Space: A Practical Guide supplies all the advice and information you need to make your spaceflight the most rewarding experience of your life. This definitive, real-world guide is packed with helpful facts and suggestions on everything from training, equipment, safety and in-flight procedures to techniques for avoiding space motion sickness and bone demineralization. Youll also find: Advice on choosing your training agency Techniques for minimizing the risk of space motion sickness Information you need to prepare for your medical examination, training and flight Tips on activities near your training location and much more.

This book provides its reader with a good understanding of the stabilization of switched nonlinear systems (SNS), systems that are of practical use in diverse situations: design of fault-tolerant systems in space- and aircraft; traffic control; and heat propagation control of semiconductor power chips. The practical background is emphasized throughout the book; interesting practical examples frequently illustrate the theoretical results with aircraft and spacecraft given particular prominence. Stabilization of Switched Nonlinear Systems with Unstable Modes treats several different subclasses of SNS according to the characteristics of the individual system (time-varying and distributed parameters, for example), the state composition of individual modes and the degree and distribution of instability in its various modes. Achievement and maintenance of stability across the system as a whole is bolstered by trading off between individual modes which may be either stable or unstable or by exploiting areas of partial stability within all the unstable modes. The book can be used as a reference for academic research on switched systems or used by graduate students of control theory and engineering. Readers should have studied linear and nonlinear system theory and have some knowledge of switched and hybrid systems to get the most from this monograph.

Making a detailed contribution to geographies of air transport and aeromobility, this book examines the practices and processes that produce particular patterns of air transport provision both regionally and globally. In so doing, it updates the seminal contributions of Eva Taylor (1945), Kenneth Sealy (1957), Brian Graham (1995) and others to the study of air transport geography. Leading scholars in the field offer a unique insight into the key developments that have occurred in the field and the implications that these developments have had for geography, geographers, and global patterns of past, present and future air transport.Although globalization and liberalization processes have greatly expanded the demand for air transport over the last two decades, the industry has experienced several major setbacks due to economic, security, and environmental concerns. Many of these impacts have been much more pronounced in some regions, such as North America and Europe while others, such as Asia-Pacific have not been as adversely affected. Accordingly, there is a clear need to examine these recent economic and geopolitical changes from a geographical perspective given the differentiated pattern of effects from global processes. Addressing this need, this volume opens with thematic chapters covering key topics such as the historical geographies, socio-cultural mobilities, environmental externalities, urban geographies, and sustainability of the global air transport industry, followed by regional analysis of the industry in Asia-Pacific, Latin America, Greater Middle East and Africa as well as North America and Europe.