Teoría y problemas resueltos en programación control numérico PDF Download

Author: Alberto Cuesta Arranz
Publisher:
ISBN: 9788426713827
Category : Computers
Languages : es
Pages : 139

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Book Description
En los últimos años, los procesos de fabricación exigen cada vez menores tolerancias de fabricación y menores precios de las piezas para poder abaratar costes. Como consecuencia, las mecanizaciones que anteriormente se realizaban de manera manual han pasado a desarrollarse mecánicamente e incluso en numerosas ocasiones automáticamente sin necesidad de ningún operario. Para dar este paso, uno de los factores más importantes ha sido la adecuación de las maquinas de mecanizado, en las que se ha conseguido dar pasos de gigante hasta alcanzar muy altas velocidades de mecanizado con sorprendentes tolerancias de fabricación incluso después de tiradas de 10.000 piezas. Uno de los causantes de tan tremenda revolución ha sido la integración de los controles numéricos en los procesos de fabricación, sistemas capaces de controlar el entorno de la máquina, la propia fabricación y el estado de cada uno de los ejes que intervienen en la fabricación. En este texto se tratará de dar una reseña sobre las mejoras que el control numérico ha ido sufriendo con el paso de los años, las maquinas herramientas en las que habitualmente se suele integrar este tipo de controles y, lo más importante, cómo programar dichos controles para que ejecuten las funciones necesarias. Además se añade un capítulo muy extenso con ejercicios resueltos para que sirvan de ayuda al programador.

Author: Byron S. Gottfried
Publisher:
ISBN:
Category :
Languages : es
Pages : 237

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 2382

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Author: Elsa Gómez Gómez
Publisher:
ISBN: 9789275115411
Category : Health & Fitness
Languages : en
Pages : 304

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Author: Kenneth Train
Publisher: MIT Press
ISBN: 9780262200554
Category : Business & Economics
Languages : en
Pages : 282

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This book addresses two significant research areas in an interdependent fashion. It is first of all a comprehensive but concise text that covers the recently developed and widely applicable methods of qualitative choice analysis, illustrating the general theory through simulation models of automobile demand and use. It is also a detailed study of automobile demand and use, presenting forecasts based on these powerful new techniques. The book develops the general principles that underlie qualitative choice models that are now being applied in numerous fields in addition to transportation, such as housing, labor, energy, communications, and criminology. The general form, derivation, and estimation of qualitative choice models are explained, and the major models - logit, probit, and GEV - are discussed in detail. And continuous/discrete models are introduced. In these, qualitative choice methods and standard regression techniques are combined to analyze situations that neither alone can accurately forecast. Summarizing previous research on auto demand, the book shows how qualitative choice methods can be used by applying them to specific auto-related decisions as the aggregate of individuals' choices. The simulation model that is constructed is a significant improvement over older models, and should prove more useful to agencies and organizations requiring accurate forecasting of auto demand and use for planning and policy development. The book concludes with an actual case study based on a model designed for the investigations of the California Energy Commission. Kenneth Train is Visiting Associate Professor in Economics at the University of California, Berkeley, and Director of Economic Research at Cambridge Systematics, Inc., also in Berkeley. Qualitative Choice Analysisis included in The MIT Press Transportation Studies Series, edited by Marvin L. Manheim.

Author: Kenneth Train
Publisher: Mit Press
ISBN: 9780262200844
Category : Business & Economics
Languages : en
Pages : 338

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Optimal Regulation addresses the central issue of regulatory economics - how toregulate firms in a way that induces them to produce and price "optimally." It synthesizes the majorfindings of an extensive theoretical literature on what constitutes optimality in various situationsand which regulatory mechanisms can be used to achieve it. It is the first text to provide aunified, modern, and nontechnical treatment of the field.The book includes models for regulatingoptimal output, tariffs, and surplus subsidy schemes, and presents all of the material graphically,with clear explanations of often highly technical topics.Kenneth E. Train is Associate AdjunctProfessor in the Department of Economics and Graduate School of Public Policy at the University ofCalifornia, Berkeley. He is also Principal of the firm Cambridge Systematics.Topics include: Thecost structure of natural monopoly (economies of scale and scope). Characterization of firstandsecond-best optimality. Surplus subsidy schemes for attaining first-best optimality. Ramsey pricesand the Vogelsang-Finsinger mechanism for attaining them. Time-ofuse (TOU) prices and Riordan'smechanisms for attaining the optimal TOU prices' Multipart and self-selecting tariffs, and Sibley'smethod for using self-selecting tariffs to achieve optimality. The Averch-Johnson model of howrate-of-return regulation induces inefficiencies. Analysis of regulation based on the firm's returnon Output, costs, or sales. Price-cap regulation. Regulatory treatment of uncertainty and its impacton the firm's behavior. Methods of attaining optimality without direct regulation (contestability,auctioning the monopoly franchise.)

Author: Warren F. Phillips
Publisher: John Wiley & Sons
ISBN: 9780471334583
Category : Science
Languages : en
Pages : 986

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Book Description
This comprehensive volume addresses the mechanics of flight through a combination of theory and applications. Topics are presented in a logical order and coverage within each is extensive, including a detailed discussion on the quaterion formulation for six-degree-of-freedom flight.

Author: Steven C. Chapra
Publisher: McGraw-Hill Science, Engineering & Mathematics
ISBN: 9780072431933
Category : Technology & Engineering
Languages : en
Pages : 926

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Book Description
The Fourth Edition of Numerical Methods for Engineers continues the tradition of excellence it established as the winner of the ASEE Meriam/Wiley award for Best Textbook. Instructors love it because it is a comprehensive text that is easy to teach from. Students love it because it is written for them--with great pedagogy and clear explanations and examples throughout. This edition features an even broader array of applications, including all engineering disciplines. The revision retains the successful pedagogy of the prior editions. Chapra and Canale's unique approach opens each part of the text with sections called Motivation, Mathematical Background, and Orientation, preparing the student for what is to come in a motivating and engaging manner. Each part closes with an Epilogue containing sections called Trade-Offs, Important Relationships and Formulas, and Advanced Methods and Additional References. Much more than a summary, the Epilogue deepens understanding of what has been learned and provides a peek into more advanced methods. What's new in this edition? A shift in orientation toward more use of software packages, specifically MATLAB and Excel with VBA. This includes material on developing MATLAB m-files and VBA macros. In addition, the text has been updated to reflect improvements in MATLAB and Excel since the last edition. Also, many more, and more challenging problems are included. The expanded breadth of engineering disciplines covered is especially evident in the problems, which now cover such areas as biotechnology and biomedical engineering.

Author: Abraham Arcavi
Publisher: Routledge
ISBN: 1134820704
Category : Education
Languages : en
Pages : 159

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IMPACT (Interweaving Mathematics Pedagogy and Content for Teaching) is an exciting new series of texts for teacher education which aims to advance the learning and teaching of mathematics by integrating mathematics content with the broader research and theoretical base of mathematics education. The Learning and Teaching of Algebra provides a pedagogical framework for the teaching and learning of algebra grounded in theory and research. Areas covered include: • Algebra: Setting the Scene • Some Lessons From History • Seeing Algebra Through the Eyes of a Learner • Emphases in Algebra Teaching • Algebra Education in the Digital Era This guide will be essential reading for trainee and qualified teachers of mathematics, graduate students, curriculum developers, researchers and all those who are interested in the "problématique" of teaching and learning algebra. It allows you to get involved in the wealth of knowledge that teachers can draw upon to assist learners, helping you gain the insights that mastering algebra provides.

Author: Robert S. Pindyck
Publisher: McGraw-Hill/Irwin
ISBN: 9780079132925
Category : Business & Economics
Languages : en
Pages : 664

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Book Description
This well known text helps students understand the art of model building - what type of model to build, building the appropriate model, testing it statistically, and applying the model to practical problems in forecasting and analysis.