Libros de Ingeniería aeronáutica y astronáutica, página 10 de 52

This book introduces the concepts of soft errors in FPGAs, as well as the motivation for using commercial, off-the-shelf (COTS) FPGAs in mission-critical and remote applications, such as aerospace. The authors describe the effects of radiation in FPGAs, present a large set of soft-error mitigation techniques that can be applied in these circuits, as well as methods for qualifying these circuits under radiation. Coverage includes radiation effects in FPGAs, fault-tolerant techniques for FPGAs, use of COTS FPGAs in aerospace applications, experimental data of FPGAs under radiation, FPGA embedded processors under radiation and fault injection in FPGAs. Since dedicated parallel processing architectures such as GPUs have become more desirable in aerospace applications due to high computational power, GPU analysis under radiation is also discussed.

A memoir of a period at the aviation college, Embry Riddle, when its main campus was in Miami, Florida. It was at a time when airlines were replacing the slower propliners with jetliners and a disturbing number of airliners were crashing. Learn what even airliner design engineers did not know at the time. An attempt is made to render the technical info understandable to the tech neophyte.

The articles in this volume present the state-of-the-art in noise prediction, modeling and measurement. The articles are partially based on class notes provided during the course 'Noise sources in turbulent shear flows', given at CISM on April 2011. The first part contains general concepts of aero acoustics, including vortex sound theory and acoustic analogies, in the second part particular emphasis is put into arguments of interest for engineers and relevant for aircraft design: jet noise, airfoil broadband noise, boundary layer noise (including interior noise and its control) and the concept of noise sources, their theoretical modeling and identification in turbulent lows. All these arguments are treated extensively with the inclusion of many practical examples and references to engineering applications.

Based on more than 10 years of teaching intermediate dynamics at the Air Force Institute of Technology, this book is suitable as a text for a graduate-level or advanced undergraduate-level course in 3-dimensional dynamics, or as a reference. The methods and techniques presented have been tested in the classroom, and have facilitated several research projects undertaken by the author. The basics of vector mathematics in three-dimensional space is introduced in the first chapter, and is facilitated by a vector notation that encourages a thorough understanding of kinematic and dynamic variables. Subsequent chapters cover particle kinematics, particle dynamics, rigid body kinematics, and rigid body dynamics using the framework of Newtonian mechanics. Energy and variational approaches, including Hamilton's Law of Varying Action, Hamilton's Principle, and Lagrange's Equation are introduced in Chapter 6. Each chapter includes solved problems, which demonstrate the concepts covered in the chapter, as well as additional problems that may be used as practice

Advanced Airship Technologies and Design Approaches identifies and outlines important airship design and practicability considerations and suggests a better design approach that will result in more successful development programs and lead to airships that are in synch with 21st century aviation practices and advanced military-commercial operating utility needs. Airships were very successful flying vehicles until the later 1930s when the rise of wing-borne aircraft gradually led to their demise. They continued in limited use until the 1960s as long-endurance naval patrol craft until they too were superseded by aircraft. A key advantage of the airship is that, once in flight, it requires dramatically less fuel than a conventional aircraft. In an age of rising fuel costs, the need for economical heavy lift transportation as well as specialized intelligence, surveillance, and reconnaissance (ISR) platforms is an opportune time to look again at lighter-than-air vehicle technology. An airship revival has proven difficult due to failed or canceled airship programs-proving corrosive to the perceived viability of the technology. The airship often struggles to be taken seriously, scoffed at as being ''just a blimp." If the present revival of interest in airships is to avoid a new generation of failures, or an inability to achieve promised results, it is essential to introduce an era of more prudent airship design, clear vision, and better management. Advanced Airship Technologies and Design Approaches offers a path forward. It is a must-read for all those with an interest in a successful future for airships.

Aircraft technology is a dynamic field. This book provides insightful information regarding the advancements in aircraft technology. Specifically, it covers a broad range of topics in aircraft electrical systems, inspection and maintenance and other diversified topics. The authors are leading veterans in their fields. This book should appeal to both the students as well as researchers.

This is a restructured mathematical approach that confirms the equalization of propellant impingement with the mix ratio while having an axial flow of zero using a new factor labeled the velocity rat

Current developments in the field of air navigation services have been comprehensively described in this well-structured book. The division of air navigation services entered a new era of performance scheme that aims to meet requisite targets in four fundamental performance areas of safety, capacity, eco-friendliness and cost-efficiency. While it is highly expected that the targets are completely achieved, it is not recommended how; this being characteristic of performance based and goal oriented regulations. These key performance regions are interconnected by proportional and inversely proportional interrelations. For instance; if one aspires to expand sector capacity using the existing human resources (constant staff costs) but does not invest in technology (constant support cost) to accomplish higher cost-efficiency of service provision, the consequent overloaded system might unlock the Pandora's box of underlying safety issues. Since there is no scope of failure, we - the common, migrating and traveling public, airspace users, airport operators, air navigation services providers and the economy - will only benefit from this system; achieving goals of performance scheme in the process. However, the fundamental question which remains unanswered is "What is the winning strategy?" This book provides an understanding of noteworthy oddities of the elements of new business models of air navigation services provision as advancement of the latter became vital.

The book describes the basic concepts of spaceflight operations, for both, human and unmanned missions. The basic subsystems of a space vehicle are explained in dedicated chapters, the relationship of spacecraft design and the very unique space environment are laid out. Flight dynamics are taught as well as ground segment requirements. Mission operations are divided into preparation including management aspects, execution and planning. Deep space missions and space robotic operations are included as special cases. The book is based on a course held at the German Space Operation Center (GSOC).

Highlights the human components of Remotely Piloted Aircraft Systems, their interactions with the technology and each other, and the implications of human capabilities and limitations for the larger systemConsiders human factors issues associated with RPAS, but within the context of a very large system of people, other vehicles, policy, safety concerns, and varying applicationsChapters have been contributed by world class experts in HSI and those with operational RPAS experienceConsiders unintended consequences associated with taking a more myopic view of this systemExamines implications for practice, policy, and researchConsiders both civil and military aspects of RPAS

Este libro, clásico ya en su edición original, nosólo está dirigido a los pilotos agrícolas sino tam bién a todos los ingenieros y profesionales que, de una manera u otra, estén relacionados con este tipo de trabajo, tanto desde un enfoque aeronautico como desde la perspectiva de los aplicadores de agroqui-micos y de los tecnicos y profesionales vinculados a la agricultura, a la selvicultura y al control de vectores de enfermedades animales y humanas.

On-orbit operations optimization among multiple cooperative or noncooperative spacecraft, which is often challenged by tight constraints and shifting parameters, has grown to be a hot issue in recent years.The authors of this book summarize related optimization problems into four planning categories: spacecraft multi-mission planning, far-range orbital maneuver planning, proximity relative motion planning and multi-spacecraft coordinated planning.The authors then formulate models, introduce optimization methods, and investigate simulation cases that address problems in these four categories. This text will serve as a quick reference for engineers, graduate students, postgraduates in the fields of optimization research and on-orbit operation mission planning.

Fuel cell technology is the most exciting and legitimate alternative source of power currently available to us as world resources of non-renewable fuel continue to be depleted. No other power generating technology holds the same benefits that fuel cells offer, including high reliability and efficiency, negligible environmental impact, and security of supply. Fuel cells run on hydrogen - the simplest and most plentiful gas in the universe - although they can also run on carbon monoxide, methane, or even coal. Their applications are diverse, from powering automobiles, buildings and portable electronics, to converting methane gas from wastewater plants and landfills into electricity. Fuel Cells, Engines and Hydrogen is a controversial text that challenges the accepted industry parameters for measuring fuel cell performance and efficiency. Based on his inter-disciplinary experience in the fields of power, nuclear power, and desalination, the author contends that the development potential of the fuel cell is related to the quantity fuel chemical exergy, which, like electrical potential, is a quantitative measure of work done.The fuel cell community currently characterises these devices in terms of the enthalpy of combustion (calorific value) - however the author argues a correct, qualitatively different and fourfold larger characterisation is via the fuel chemical exergy, in units of work, and not energy. He asserts that the distortion introduced by this accepted perspective needs to be corrected before relatively efficient fuel cells, integrated with comparatively low performing gas turbines, reach the market. Fuel Cells, Engines and Hydrogen features a foreword by Dr Gerry Agnew, Executive VP Engineering of Rolls Royce Fuel Cells Systems Ltd. It is essential reading for all engineers involved with fuel cells and/ or the manufacture of hydrogen from natural gas, as well as academics in related disciplines such as thermodynamics, physical chemistry, materials, physics, mechanical and chemical engineering.

This book explores topics that are central to the field of spacecraft attitude determination and control. The authors provide rigorous theoretical derivations of significant algorithms accompanied by a generous amount of qualitative discussions of the subject matter. The book documents the development of the important concepts and methods in a manner accessible to practicing engineers, graduate-level engineering students and applied mathematicians. It includes detailed examples from actual mission designs to help ease the transition from theory to practice and also provides prototype algorithms that are readily available on the author''s website.Subject matter includes both theoretical derivations and practical implementation of spacecraft attitude determination and control systems. It provides detailed derivations for attitude kinematics and dynamics and provides detailed description of the most widely used attitude parameterization, the quaternion. This title also provides a thorough treatise of attitude dynamics including Jacobian elliptical functions. It is the first known book to provide detailed derivations and explanations of state attitude determination and gives readers real-world examples from actual working spacecraft missions. The subject matter is chosen to fill the void of existing textbooks and treatises, especially in state and dynamics attitude determination. MATLAB code of all examples will be provided through an external website.

Forget Hawaii or the Mediterranean. Soon - very soon - you''ll 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.You''ll 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 is the latest edition - fully revised and updated - of the standard textbook on aerodynamic theory, as applied to model flight. Everything is explained in a concise and practical form for those enthusiasts who appreciate that a better understanding of model behaviour is the sure path to greater success and enjoyment, whether just for fun or in competition.The revisions for this new edition reflect the significant developments in model aircraft during the last few years, and include brand new data:* The chapter on aerofoils has been rewritten to take account of the vast amount of testing carried out recently in the USA by the University of Illinois.* A brand new chapter explains the latest research into the flight of birds and insects and how it is applied to small drones and model-sized surveillance aircraft.* Older wind tunnel test reports all replaced with the latest trials and measurements.