Libros de ingeniería, página 34 de 933

Rotordynamics are of great importance in the design, manufacture and assembly of turbomachines as well as in ensuring their safe operation. Also important are the dynamics of the foundation and its interaction with the dynamics of the rotor.This book is divided into four parts. Following a presentation of the basic theory the dynamics of rotors supported on several bearings. The third part describes the dynamics of foundations of turbine line-outs and the calculations for a turbomachine coupled with its foundation. The last part includes a section on estimation procedures, a comprehensive presentation of the theoryand practice of rotors having a transverse crack, a section on the mathematical fundamentals and a description of the computer program used for the examples in the book. The book addresses both the practical engineer and the theoretician and should provide manufacturers, operators, university and polytechnic lecturers and students with an understanding of the vibrations of turbomachines. The results are described in such a way that they can be easily understood and applied.

Libro práctico para comprender las estructuras de hormigón presentes en la edificación. Dirigido tanto a estudiantes de carreras técnicas con la asignatura de estructuras de hormigón, como a todos lo

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.

Flow-Induced Vibration of Power and Process Plant Components: A Practical Workbook is an indispensable, single source of information on the most common flow-induced vibration problems in power and process plant components.Based on the author''s own experience that most errors in engineering analysis come from confusions in the units, the author begins with a short chapter on units and dimensions. He then provides step-by-step examples in dual US and SI units, leading to the final objective of design analysis, problem solving, diagnosis and trouble shooting in the following areas:Fundamentals of VibrationAcoustics and Structural DynamicsVibration of Structures in Quiescent FluidsVortex-Induced VibrationTurbulence-Induced VibrationImpact, Fatigue and Wear Caused bu Flow-Induced VibrationAcoustically-Induced VibrationSignal Analysis and Diagnostic TechniquesEmphasis is placed on the physics of the phenomenon and most of the work examples can be solved with pocket calculators or spreadsheets.

a conservación de alimentos se puede realizar por diversas técnicas. Una de estas técnicas es la conservación por frío, que es el contenido de esta obra: Refrigeración de los alimentos a temperaturas bajas (de 0 a 10ºC), pero siempre por encima de los 0ºC que es cuando puede empezar la formacion de cristales de hielo. El alimento se puede conservar a estas temperaturas durante varios dias. Congelacion de los alimentos a temperaturas inferiores a los 0ºC. Normalmente, para inhibir el desarrollo de los microorganismos se suele llegar a temperaturas de -18ºC a -25ºC. El alimento se conserva asi durante largos periodos de tiempo (meses e incluso años). Este libro trata los equipos e instalaciones que se utilizan para producir frio (compresores, evaporadores, condensadores, torres de refrigeracion, etc.), las propiedades de los fluidos que se utilizan como refrigerantes (amoniaco, salmuera, nitrogeno, dioxido de carbono, etc.), la tecnologia de la refrigeracion de todo tipo de alimentos (leche y productos lacteos, zumos, carnes, pescados, bebidas refrescantes, frutas, hortalizas, helados, productos de panaderia y bolleria, ovoproductos, cocinados y precocinados, etc.) y la tecnologia de la congelacion de todo tipo de alimentos. Todas las explicaciones escritas se acompañan de diagramas de flujo, graficas, fotos, tablas con datos de interes, etc. En definitiva se trata de un libro muy didactico, actualizado y especifico interes para gran cantidad de industrias agroalimentarias, ingenierias, escuelas y facultades de tecnologia de los alimentos, centros de formacion agroalimentaria, cursos de formacion,

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.

Aquest manual esta dedicat a l’estudi geotècnic, o sigui a la informació quantificada de les característiques del terreny necessària per al projecte dels fonaments i dels murs de contenció. La primer

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.

This book highlights and explains the significance of philosophical, logical, and scientific principles for engineering education/training and engineering works.In so doing, it aims to help to rectify the neglect of philosophy and logic in current education and training programs, which emphasize analytical and numerical methods at the expense of the innovative practical and creative abilities so important for engineering in the past. Individual chapters examine the relation of philosophy, logic, and science to engineering, drawing attention to, for example, the significance of ethics, the relevance of the philosophy of science, and the increasing importance of application of fuzzy logic to engineering.Modeling principles and philosophy in engineering are discussed, and the impact of different education systems, examined. Too often engineers have become reliant on readily available formulations and software; this book offers an antidote, promoting the recognition of artistic and humanitarian aspects and their integration in engineering works.

Precio de la Construcción Centro es la base más utilizada en el ámbito nacional para la realización de presupuestos y proyectos de toda clase. Se actualiza anualmente, desde 1984, adaptándose a nueva

Este libro presenta una introducción completa sobre los sistemas y señales de tiempo continuo y tiempo discreto con diversos ejemplos que emplean MATLAB, la descarga de información desde Internet y demos que se encuentran en el sitio Web de este libro.El texto fue escrito para los niveles basico e intermedio. Entre los puntos sobresalientes de esta tercera edicion se encuentran los siguientes:La presentacion se simplifico eliminando o reescribiendo varias partes matematicas e incluyendo nuevos ejemplos que dan una vision adicional sobre el significado y la importancia de las formulaciones matematicas que se tratan en el texto. Asimismo, se agregaron resumenes al final de cada Capitulo para destacar el material cubierto en ellos.Nuevas aplicaciones practicas que utilizan informacion actual obtenida de la Web. Se muestra como descargar dicha informacion y como llevarla a MATLAB para su analisis con las tecnicas descritas en el texto.Se hace enfasis en el problema del analisis de informacion en presencia de ruido, que usualmente se presenta en ingenieria, negocios, finanzas, y otros campos.Una mejora importante en el componente de MATLAB. En particular MATLAB Symbolic Math Toolbox, el cual esta disponible en su version para el estudiante (7.0.1); este componente se utiliza para complementar y simplificar diversos aspectos computacionales de la teoria y ejemplos presentados a lo largo del libro. Se utiliza tambien Simulink, para elaborar modelos de sistemas y para simular el comportamiento de sistemas.

Better Understand the Relationship between Powertrain System Design and Its Control Integration.While powertrain system design and its control integration are traditionally divided into two different functional groups, a growing trend introduces the integration of more electronics (sensors, actuators, and controls) into the powertrain system. This has impacted the dynamics of the system, changing the traditional mechanical powertrain into a mechatronic powertrain, and creating new opportunities for improved efficiency. Design and Control of Automotive Propulsion Systems focuses on the ICE-based automotive powertrain system (while presenting the alternative powertrain systems where appropriate). Factoring in the multidisciplinary nature of the automotive propulsion system, this text does two thingsadopts a holistic approach to the subject, especially focusing on the relationship between propulsion system design and its dynamics and electronic control, and covers all major propulsion system components, from internal combustion engines to transmissions and hybrid powertrains.The book introduces the design, modeling, and control of the current automotive propulsion system, and addresses all three major subsystems: system level optimization over engines, transmissions, and hybrids (necessary for improving propulsion system efficiency and performance). It provides examples for developing control-oriented models for the engine, transmission, and hybrid. It presents the design principles for the powertrain and its key subsystems. It also includes tools for developing control systems and examples on integrating sensors, actuators, and electronic control to improve powertrain efficiency and performance. In addition, it presents analytical and experimental methods, explores recent achievements, and discusses future trends.Comprised of five chapters containing the fundamentals as well as new research, this text:- Examines the design, modeling, and control of the internal combustion engine and its key subsystems: the valve actuation system, the fuel system, and the ignition system- Expounds on the operating principles of the transmission system, the design of the clutch actuation system, and transmission dynamics and control- Explores the hybrid powertrain, including the hybrid architecture analysis, the hybrid powertrain model, and the energy management strategies- Explains the electronic control unit and its functionalitiesthe software-in-the-loop and hardware-in-the-loop techniques for developing and validating control systemsDesign and Control of Automotive Propulsion Systems provides the background of the automotive propulsion system, highlights its challenges and opportunities, and shows the detailed procedures for calculating vehicle power demand and the associated powertrain operating conditions.

Libro práctico, con indicaciones exactas para hacerse un hormo de barro. Valioso por su ahorro en frustraciones y trabajo. Las abundantes y agradables ilustraciones son una guía estupenda para finalizar con exito nuestro proyecto. Hornos y pan ejemplifican como simples conexiones entre la tierra y la comida, a traves de sencillas y apropiadas tecnicas, pueden curar muchas enfermedades. La publicacion en 1984 de Laurel s Kitchen Bread Book trajo a la luz las virtudes de usar harinas integrales en la elaboracion del pan y, por primera vez, publico una receta, o mas bien un proceso, para hacer panes leudados de manera natural. Estos panes requerian un fuego de leña, un horno de ladrillo o de barro y ayudaron a expandir la revolucion de la "masa madre acida". El libro de Kiko devuelve informacion basica sobre estos hornos (y una aproximacion basica al buen pan integral) a los hogares, para que asi las familias puedan verse facultadas para hacer su propio y saludable pan.

Mechanical vibration is normally an undesired condition which can cause problems such as discomfort, noise, fatigue, etc.Shock is a particular type of vibration of transient nature containing high levels of energy in a very short period of time It is vital for engineers to understand and apply vibration control methods, either by introducing structural modifications, reducing the source of vibration, or interposing an isolator between receiver and source. The easiest mathematical representation of these isolators is a passive combination of a spring and a damping of fixed properties.There are some isolators where the properties can change depending upon the vibration source called semi active, or adaptive vibration isolators.This book explores the application of a novel stiffness switching strategy to achieve an improved shock isolator. This is a two stage strategy controlling the vibration response during the shock and the later residual vibration.The book presents a review of the state of the art in shock isolation, theoretical models for switching stiffness and experimental validation.