Libros de Estudios y ensayos, página 3 de 49

Ingenieria industrial

This book is written as an introduction to rotor-bearing dynamics for practicing engineers and students who are involved in rotordynamics and bearing design. The goal of this book is to provide a step-by-step approach to the understanding of fundamentals of rotor-bearing dynamics by using DyRoBeS . Therefore, the emphasis of this book is on the basic principals, phenomena, modeling, and interpretation of the results. Numerous examples, from a single-degree-of-freedom system to complicated industrial rotating machinery, are employed throughout this book to illustrate these fundamental dynamic behaviors. The concepts in the text are reinforced by parametric studies and numerous illustrative examples and figures.The book begins with a brief discussion of the mathematical modeling of physical dynamic systems and an overview of the basic vibration concepts in Chapter 1.The coordinate systems and the kinematics of the rotor motion are presented in Chapter 2.A simple two-degrees-of-freedom rotor system, the Laval-Jeffcott rotor model, is utilized in Chapter 3 to demonstrate many important phenomena in rotordynamics. This simple 2DOF model provides many valuable physical insights into more practical and complicated systems.Chapter 4 discusses the rotating disk equations and rigid rotor dynamics.Chapter 5 covers the finite element formulation for a rotating shaft element.Chapter 6 deals with various types of bearings, dampers, seals and other interconnection components. All the reaction forces from these components are non-linear in nature. The concept of linearization around the static equilibrium is discussed.Chapter 7 summarizes the lateral vibration study with several practical examples. Various solution techniques and interpretation of the results are discussed.Chapter 8 is devoted to the important subject of torsional vibration. Finally, a brief description of the balancing method, influence coefficient method is presented in Chapter 9.

This book studies methods for a robust design of rotors against self-excited vibrations. The occurrence of self-excited vibrations in engineering applications if often unwanted and in many cases difficult to model. Thinking of complex systems such as machines with many components and mechanical contacts, it is important to have guidelines for design so that the functionality is robust against small imperfections. This book discusses the question on how to design a structure such that unwanted self-excited vibrations do not occur. It shows theoretically and practically that the old design rule to avoid multiple eigenvalues points toward the right direction and have optimized structures accordingly.This extends results for the well-known flutter problem in which equations of motion with constant coefficients occur to the case of a linear conservative system with arbitrary time periodic perturbations.

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.

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.

Este libro sigue el esquema básico de la asignatura troncal Matemáticas 2 (capítulos 1, 2, 3, 4 y 5) y parte del temario de las asignaturas Matemáticas 1 (capítulo 1) y Matemáticas 3 (capítulos 6 y 7), que los autores imparten en la EUETIB. No obstante, su contenido es perfectamente adaptable a cursos de algebra lineal, calculo en varias variables y ecuaciones diferenciales de cualquier ingenieria. El texto tiene como objetivo principal iniciar al estudiante en los conceptos basicos del algebra lineal, el calculo de funciones de varias variables, el analisis vectorial, las ecuaciones diferenciales y la teoria de las transformadas. Los contenidos se estructuran en tres partes. La primera parte trata del algebra lineal e introduce los conceptos de valores y vectores propios. La segunda parte esta dedicada a las funciones de varias variables: nociones basicas de limite, continuidad y derivacion; calculo de extremos libres y condicionados; integracion multiple y analisis vectorial. La tercera parte trata de las ecuaciones diferenciales de primer orden y de orden superior, la transformada de Laplace y la transformada de Fourier. Al final de cada capitulo, se incluye una recopilacion de problemas resueltos y propuestos, junto con su resolucion utilizando el programa de calculo simbolico Maple.

Knowledge of computer programming and electronics is a presumption. Primary focus is laid on CNC machine tools. Training requirements of technicians and engineers in tools manufacturing are highlighted. Use of robots in computer aided manufacture are illustrated. The book attempts a detailed coverage of CNC machine tools. CNC systems, constructional features, process planning and programming have been dealt with in detail. Knowledge of CNC programming using software packages, programmable machine control and computer aided inspection are essential for the effective operation of CNC machines. Chapters on economics of manufacturing effective utilization and maintenance will be useful for shop floor personnel. The chapter on manufacturing automation is included to introduce concepts of increasing productivity with CNC machines. A few chapters on robotics have been included in the book to introduce the reader to the use of robotics in computer aided manufacture.

Este libro ofrece una colección de problemas resueltos sobre electrodinámica, ondas y medios de transmisión, abarcando e identificando una gran variedad de situaciones. Cada capítulo va precedido de una introduccion teorica que sirve como guia para el estudio de los textos recomendados en la bibliografia y resume los conceptos necesarios para la resolucion de los problemas. Tras una breve introduccion a la electrodinamica, se presentan el Teorema de Poynting y los aspectos concretos de campos electromagneticos en presencia de conductores. A continuacion se consideran las ondas planas homogeneas. Seguidamente se estudian las ondas guiadas, dedicandose un capitulo a las guias de ondas y otro al analisis de circuitos con lineas de transmision.

9788416332236. En este libro recae una profecía: si no secumple lo que hay en él escrito sobre elsocialismo y la justicia a ciencia cierta en5 años y el resto en 50 años, meterán al20% de los responsables en la carcel.La justicia a ciencia cierta se refiere acontrolar lo que la gente hace desde lossatelites y con alarmas para no tener queser vigilados. Lo mas interesante es comocon una serie de inventos faciles de hacerpara un ingeniero mejoraria la vida detodos, animales y medio ambienteincluidos, por ejemplo sustituir laelectricidad por luz solar otros como lalavadora que lava, seca y plancha enmenos tiempo que un centrifugadocomo dejarian de oler las alcantarillas oacabar con las inundaciones todo unplantel de nuevas innovaciones que hariade nuestro mundo, un lugar mejor y massostenible.

El libros esta dirigido a estudiantes de ingeniería mecánica, de manufactura, industrial, aeroespacial, metalúrgica y de materiales, así como de ingeniería biomédica. Al igual que e ediciones anteriores, se presenta una vision general de esta disciplina , con enfasis en una cobertura especialmente cualitativa de la ciencia, la tecnologia y la practica de la manufactura.Este primer volumen se enfoca en la tecnologia de materiales con temas y casos reales a traves de situaciones que se presentan en la industria manufacturera.El texto ha sido revisado y actualizado totalmente.

El libros esta dirigido a estudiantes de ingeniería mecánica, de manufactura, industrial, aeroespacial, metalúrgica y de materiales, así como de ingeniería biomédica. Al igual que e ediciones anteriores, se presenta una vision general de esta disciplina , con enfasis en una cobertura especialmente cualitativa de la ciencia, la tecnologia y la practica de la manufactura.En este segundo volumen se hace enfasis en los procesos de manufactura con temas y casos reales a traves de situaciones que se presentan en la industria.El texto ha sido revisado y actualizado totalmente.

There is a resurgence of applications in which the calculus of variations has direct relevance. In addition to application to solid mechanics and dynamics, it is now being applied in a variety of numerical methods, numerical grid generation, modern physics, various optimization settings, and fluid dynamics, for example. Many of these applications, such as nonlinear optimal control theory applied to continuous systems, have only recently become tractable computationally, with the advent of advanced algorithms and large computer systems.The content of the text reflects the strong connection between calculus of variations and the applications for which variational methods form the fundamental foundation. Most readers will be pleased to note that the mathematical fundamentals of calculus of variations (at least those necessary to pursue applications) is rather compact and is contained in a single chapter of the book. Therefore, the majority of the text consists of applications of variational calculus for a variety of fields.- Emphasis on modern applications- Provides a concise treatment of the calculus of variations- Derivation of the ubiquitous Hamilton''s principle directly from the first law of thermodynamics- Includes derivation of the governing equations of many discrete and continuous phenomena from Hamilton''s principle

In many plants, vibration and noise problems occur due to fluid flow, which can greatly disrupt smooth plant operations. These flow-related phenomena are called flow-induced vibration.This book explains how and why such vibrations happen and provides hints and tips on how to avoid them in future plant design.The world-leading author team doesnt assume prior knowledge of mathematical methods and provides the reader with information on the basics of modeling.The book includes several practical examples and thorough explanations of the structure, the evaluation method and the mechanisms to aid understanding of flow-induced vibrations.

Engineer and implement sustainable transportation solutionsFeaturing in-depth coverage of passenger and freight transportation, this comprehensive resource discusses contemporary transportation systems and options for improving their sustainability. The book addresses vehicle and infrastructure design, economics, environmental concerns, energy security, and alternative energy sources and platforms. Worked-out examples, case studies, illustrations, equations, and end-of-chapter problems are also included in this practical guide.Sustainable Transportation Systems Engineering covers:- Background on energy security and climate change- Systems analysis tools and techniques- Individual choices and transportation demand- Transportation systems and vehicle design- Physical design of transportation infrastructure- Congestion mitigation in urban passenger transportation- Role of intelligent transportation systems- Public transportation and multimodal solutions- Personal mobility and accessibility- Intercity passenger transportation- Freight transportation function and current trends- Freight modal and supply chain management approaches- Spatial and geographic aspects of freight transportation- Alternative fuels and platforms- Electricity and hydrogen as alternative fuels- Bioenergy resources and systems- Transportation security and planning for extreme weather events

It is vitally important to meet or exceed previous quality and reliability standards while at the same time reducing resource consumption. This textbook addresses this critical imperative integrating theory, modeling, the development of numerical methods, and problem solving, thus preparing the student to apply optimization to real-world problems. This text covers a broad variety of optimization problems using: unconstrained, constrained, gradient, and non-gradient techniques; duality concepts; multiobjective optimization; linear, integer, geometric, and dynamic programming with applications; and finite elementbased optimization. In this revised and enhanced second edition of Optimization Concepts and Applications in Engineering, the already robust pedagogy has been enhanced with more detailed explanations, an increased number of solved examples and end-of-chapter problems. The source codes are now available free on multiple platforms. It is ideal for advanced undergraduate or graduate courses and for practicing engineers in all engineering disciplines, as well as in applied mathematics.- Computer graphics and code implementation are illustrated in detail. While Matlab and Excel are used in the text examples, the understanding carries over to use of programs in the CD-ROM or commercial software readily- Connects theory to practice by having theory implemented in accompanying source code computer programs, inclusion of a number of solved examples in each chapter and stressing steps in modelling- Teaches students to understand how to define an objective function, especially in the presence of conflicting objectives

This book deals with all aspects of advanced composite materials; what they are, where they are used, how they are made, their properties, how they are designed and analyzed, and how they perform in-service. It covers both continuous and discontinuous fiber composites fabricated from polymer, metal, and ceramic matrices, with an emphasis on continuous fiber polymer matrix composites.A unique feature of this book is that it provides a comprehensive overview of composite materials from an industrial perspective, drawing on the authors 38 years of industry experience. The book emphasizes practical aspects over theory, and it thoroughly covers the current state of the art.

With contributed papers from the 2011 Materials Science and Technology symposia, this is a useful one-stop resource for understanding the most important issues in advances in materials science for environmental and energy technologies. Logically organized and carefully selected, the articles cover the themes of the symposia: Green Technologies for Materials Manufacturing and Processing; Materials Science Challenges for Nuclear Applications; Materials for Nuclear Waste Disposal and Environmental Cleanup; Energy Conversion/Fuel Cells; and Energy Storage: Materials, Systems and Applications.

Este libro tiene como objetivo acercar al lector a las principales técnicas existentes a día de hoy en materia de tratamiento y/o recuperación de suelos contaminados. Se trata de un manual básico de Ingenieria y Tecnologia ambiental en el que su contenido se centra en describir de una forma marcadamente sencilla la mayoria de estas tecnicas asi como parte de la maquinaria utilizada habitualmente para poderlas llevar a cabo. Es muy importante indicar de antemano que no se trata de un manual especifico sobre el estudio pormenorizado del suelo, y por lo tanto es preciso aclarar que no se toquen ciertas materias: no se habla de los factores y proceso formativos del suelo, ni de sus propiedades y sus constituyentes, ni de las fuentes y tipo de contaminacion, ni de los trabajos de campo, tecnicas de investigacion y muestreo, ni tampoco se habla de legislacion ni de otros temas administrativos.