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Basic Helicopter Aerodynamics - John M. Seddon - Bog - John Wiley & Sons Inc - Plusbog.dk

Basic Helicopter Aerodynamics - John M. Seddon - Bog - John Wiley & Sons Inc - Plusbog.dk

Basic Helicopter Aerodynamics is widely appreciated as an easily accessible, rounded introduction to the first principles of the aerodynamics of helicopter flight. Simon Newman has brought this third edition completely up to date with a full new set of illustrations and imagery. An accompanying website www.wiley.com/go/seddon contains all the calculation files used in the book, problems, solutions, PPT slides and supporting MATLAB® code. Simon Newman addresses the unique considerations applicable to rotor UAVs and MAVs, and coverage of blade dynamics is expanded to include both flapping, lagging and ground resonance. New material is included on blade tip design, flow characteristics surrounding the rotor in forward flight, tail rotors, brown-out, blade sailing and shipborne operations. Concentrating on the well-known Sikorsky configuration of single main rotor with tail rotor, early chapters deal with the aerodynamics of the rotor in hover, vertical flight, forward flight and climb. Analysis of these motions is developed to the stage of obtaining the principal results for thrust, power and associated quantities. Later chapters turn to the characteristics of the overall helicopter, its performance, stability and control, and the important field of aerodynamic research is discussed, with some reference also to aerodynamic design practice. This introductory level treatment to the aerodynamics of helicopter flight will appeal to aircraft design engineers and undergraduate and graduate students in aircraft design, as well as practising engineers looking for an introduction to or refresher course on the subject.

DKK 771.00
1

Principles of Helicopter Aerodynamics - J. Gordon (university Of Maryland Leishman - Bog - Cambridge University Press - Plusbog.dk

Helicopter Flight Dynamics - Gareth D. Padfield - Bog - John Wiley & Sons Inc - Plusbog.dk

Helicopter Flight Dynamics - Gareth D. Padfield - Bog - John Wiley & Sons Inc - Plusbog.dk

The Book The behaviour of helicopters and tiltrotor aircraft is so complex that understanding the physical mechanisms at work in trim, stability and response, and thus the prediction of Flying Qualities, requires a framework of analytical and numerical modelling and simulation. Good Flying Qualities are vital for ensuring that mission performance is achievable with safety and, in the first and second editions of Helicopter Flight Dynamics, a comprehensive treatment of design criteria was presented, relating to both normal and degraded Flying Qualities. Fully embracing the consequences of Degraded Flying Qualities during the design phase will contribute positively to safety. In this third edition, two new Chapters are included. Chapter 9 takes the reader on a journey from the origins of the story of Flying Qualities, tracing key contributions to the developing maturity and to the current position. Chapter 10 provides a comprehensive treatment of the Flight Dynamics of tiltrotor aircraft; informed by research activities and the limited data on operational aircraft. Many of the unique behavioural characteristics of tiltrotors are revealed for the first time in this book. The accurate prediction and assessment of Flying Qualities draws on the modelling and simulation discipline on the one hand and testing practice on the other. Checking predictions in flight requires clearly defined mission tasks, derived from realistic performance requirements. High fidelity simulations also form the basis for the design of stability and control augmentation systems, essential for conferring Level 1 Flying Qualities. The integrated description of flight dynamic modelling, simulation and flying qualities of rotorcraft forms the subject of this book, which will be of interest to engineers practising and honing their skills in research laboratories, academia and manufacturing industries, test pilots and flight test engineers, and as a reference for graduate and postgraduate students in aerospace engineering.

DKK 936.00
1

Blade Element Rotor Theory - Pylyp Volodin - Bog - Taylor & Francis Ltd - Plusbog.dk

Lecture Notes in Rotorcraft Engineering - - Bog - Springer International Publishing AG - Plusbog.dk

Mathematical Modelling of Aerospace Dynamic Systems with Practical Applications - V.p.s. Naidu - Bog - Taylor & Francis Ltd - Plusbog.dk

Time It Was - Karen Manners Smith - Bog - Taylor & Francis Inc - Plusbog.dk

Flying Tiger - Ulrich Krotz - Bog - Oxford University Press Inc - Plusbog.dk

Flying Tiger - Ulrich Krotz - Bog - Oxford University Press Inc - Plusbog.dk

Ulrich Krotz''s Flying Tiger takes a relatively obscure episode--the joint Franco-German production of a state-of-the-art and very expensive military helicopter, the Tiger Helicopter (used in the James Bond film Goldeneye, incidentally)--to make a groundbreaking theoretical contribution to international relations scholarship. The rivalry between Germany and France in the nineteenth and twentieth centuries is of course well known. It was directly or indirectly responsible for four cataclysmic wars, and until relatively recently, the idea that these two states could become close partners seemed implausible. Yet following World War II and the birth of the European Union, they became the closest of allies. In fact, they collaborated for three decades on the most sophisticated weapon that the EU has produced: the Tiger. How did this occur, and what does this happy albeit unforeseen outcome tell us about how interstate relations really work?Through the lens of the Tiger, Krotz draws from two theoretical approaches--social constructivism and historical institutionalism--to reframe our understanding of how international relationships evolve. International relations scholars have always focused on relations between states, yet have failed to think in any sustained way about how interstate relationships both remold domestic realities and derive from them. How does a relationship between states impact upon a state internally? And how do the internal institutional dynamics of a state limit such relationships? While International Relations scholars have touched on these issues, until now no one has provided a sustained, finely grained, and historically informed analysis that explains how international relations socially constructs domestic realities and how in turn domestic politics and institutions structure interstate relationships. Krotz''s account of how the Tiger project was funded and how the device was built perfectly illustrates his theoretical claims about the dialectical relationship of ''high'' interstate politics and ''low'' domestic politics. Two famous rivals completely reshaped their relationship through a complicated, decades-long process in which the nuts and bolts of domestic politics--approvals for state funding as well as laws regarding corporations and technology transfer, for instance--were instrumental in creating a new reality.

DKK 798.00
1

Forward Engagement: Rsis As A Think Tank Of International Studies And Security In The Asia-pacific - - Bog - World Scientific Publishing Co Pte Ltd -

View of Fashion - Alison Adburgham - Bog - Taylor & Francis Ltd - Plusbog.dk

Flight Dynamics and Control of Aero and Space Vehicles - Rama K. Yedavalli - Bog - John Wiley & Sons Inc - Plusbog.dk

Flight Dynamics and Control of Aero and Space Vehicles - Rama K. Yedavalli - Bog - John Wiley & Sons Inc - Plusbog.dk

Flight Vehicle Dynamics and Control Rama K. Yedavalli, The Ohio State University, USA A comprehensive textbook which presents flight vehicle dynamics and control in a unified framework Flight Vehicle Dynamics and Control presents the dynamics and control of various flight vehicles, including aircraft, spacecraft, helicopter, missiles, etc, in a unified framework. It covers the fundamental topics in the dynamics and control of these flight vehicles, highlighting shared points as well as differences in dynamics and control issues, making use of the ‘systems level’ viewpoint. The book begins with the derivation of the equations of motion for a general rigid body and then delineates the differences between the dynamics of various flight vehicles in a fundamental way. It then focuses on the dynamic equations with application to these various flight vehicles, concentrating more on aircraft and spacecraft cases. Then the control systems analysis and design is carried out both from transfer function, classical control, as well as modern, state space control points of view. Illustrative examples of application to atmospheric and space vehicles are presented, emphasizing the ‘systems level’ viewpoint of control design. Key features: Provides a comprehensive treatment of dynamics and control of various flight vehicles in a single volume. Contains worked out examples (including MATLAB examples) and end of chapter homework problems. Suitable as a single textbook for a sequence of undergraduate courses on flight vehicle dynamics and control. The book is essential reading for undergraduate students in mechanical and aerospace engineering, engineers working on flight vehicle control, and researchers from other engineering backgrounds working on related topics.

DKK 777.00
1

Adaptive Control of Dynamic Systems with Uncertainty and Quantization - Jing (university Of Agder Zhou - Bog - Taylor & Francis Ltd - Plusbog.dk

Adaptive Control of Dynamic Systems with Uncertainty and Quantization - Jing (university Of Agder Zhou - Bog - Taylor & Francis Ltd - Plusbog.dk

This book presents a series of innovative technologies and research results on adaptive control of dynamic systems with quantization, uncertainty, and nonlinearity, including the theoretical success and practical development such as the approaches for stability analysis, the compensation of quantization, the treatment of subsystem interactions, and the improvement of system tracking and transient performance. Novel solutions by adopting backstepping design tools to a number of hotspots and challenging problems in the area of adaptive control are provided. In the first three chapters, the general design procedures and stability analysis of backstepping controllers and the basic descriptions and properties of quantizers are introduced as preliminary knowledge for this book. In the remainder of this book, adaptive control schemes are introduced to compensate for the effects of input quantization, state quantization, both input and state/output quantization for uncertain nonlinear systems and are applied to helicopter systems and DC Microgrid. Discussion remarks are provided in each chapter highlighting new approaches and contributions to emphasize the novelty of the presented design and analysis methods. Simulation results are also given in each chapter to show the effectiveness of these methods. This book is helpful to learn and understand the fundamental backstepping schemes for state feedback control and output feedback control. It can be used as a reference book or a textbook on adaptive quantized control for students with some background in feedback control systems. Researchers, graduate students, and engineers in the fields of control, information, and communication, electrical engineering, mechanical engineering, computer science, and others will benefit from this book.

DKK 884.00
1

Thermal and Structural Electronic Packaging Analysis for Space and Extreme Environments - Jeremiah Gayle - Bog - Taylor & Francis Ltd - Plusbog.dk

Thermal and Structural Electronic Packaging Analysis for Space and Extreme Environments - Jeremiah Gayle - Bog - Taylor & Francis Ltd - Plusbog.dk

Have you ever wondered how NASA designs, builds, and tests spacecrafts and hardware for space? How is it that wildly successful programs such as the Mars Exploration Rovers could produce a rover that lasted over ten times the expected prime mission duration? Or build a spacecraft designed to visit two orbiting destinations and last over 10 years when the fuel ran out? This book was written by NASA/JPL engineers with experience across multiple projects, including the Mars rovers, Mars helicopter, and Dawn ion propulsion spacecraft in addition to many more missions and technology demonstration programs. It provides useful and practical approaches to solving the most complex thermal-structural problems ever attempted for design spacecraft to survive the severe cold of deep space, as well as the unforgiving temperature swings on the surface of Mars. This is done without losing sight of the fundamental and classical theories of thermodynamics and structural mechanics that paved the way to more pragmatic and applied methods such finite element analysis and Monte Carlo ray tracing, for example. Features: - - Includes case studies from NASA’s Jet Propulsion Laboratory, which prides itself in robotic exploration of the solar system, as well as flyting the first cubeSAT to Mars. - - - Enables spacecraft designer engineers to create a design that is structurally and thermally sound, and reliable, in the quickest time afforded. - - - Examines innovative low-cost thermal and power systems. - - - Explains how to design to survive rocket launch, the surfaces of Mars and Venus. - Suitable for practicing professionals as well as upper-level students in the areas of aerospace, mechanical, thermal, electrical, and systems engineering, Thermal and Structural Electronic Packaging Analysis for Space and Extreme Environments provides cutting-edge information on how to design, and analyze, and test in the fast-paced and low-cost small satellite environment and learn techniques to reduce the design and test cycles without compromising reliability . It serves both as a reference and a training manual for designing satellites to withstand the structural and thermal challenges of extreme environments in outer space.

DKK 1042.00
1

(Mis)trusting Development - Margit Ystanes - Bog - Springer Nature Switzerland AG - Plusbog.dk

(Mis)trusting Development - Margit Ystanes - Bog - Springer Nature Switzerland AG - Plusbog.dk

This book explores the role of trust in social struggles related to tropical forest preservation in El Petén, Guatemala. The author combines ethnographic exploration of how trust is formed in the local context with insights about postcolonial inequalities, which structure discourses on development and climate change in ways that exclude local actors. Empirically, the book follows the complicated engagements of local concession-holding forest communities with outside actors aiming to develop archaeology-based tourism in Guatemala''s Maya Biosphere Reserve. A central argument presented is that processes initiated for societal improvement need to be based on trusting relationships in order to be successful. This requires a context sensitive approach that takes into consideration how trust is formed and undermined in specific lifeworlds, as well as postcolonial inequalities. Theoretically, the book expands existing conceptualisations of trust and emphasises the potential for ethnographic research to further our understanding of this elusive phenomenon. "How do trust and mistrust permeate the fluid relations among communities living off the forests of northern Guatemala, outside stakeholders, and a global discourse of cultural heritage and climate change? This remarkable book by a pioneer of the anthropology of trust dissects a questionable development plan that threatens the rights and livelihood of a local population marginalized in a decision-making process aimed at protecting ancient archaeological sites, promoting tourism, and preserving the rain forest." - Antonius C. G. M. Robben, author of Argentina Betrayed: Memory, Mourning, and Accountability and Professor Emeritus of Anthropology at Utrecht University, the Netherlands "El Mirador is an extraordinary Mayan archaeological site in the jungles of northern Guatemala, accessible only by foot or helicopter. Poor mestizos, for whom the forest is home, have become expert tour guides and forest conservationists. Outsiders who view the ruins and forest as a resource primed for extraction have extravagant plans to "develop" the area. Ystanes offers a richly contextualized and theorized exploration of the struggles over caring for and living in and off this exceptional and fragile place, by focusing on the role of trust in the complex negotiations over its future and in identities more broadly. While showing how structural inequalities breed mistrust at every scale, this is a beautiful and nuanced take on existential questions of living in worlds shaped by violence and competition with historical knowledge, ecosystem survival, and livelihoods at stake." - Diane Nelson, Bass Chair and Eads Family Professor of Cultural Anthropology, Duke University, USA

DKK 986.00
1