1. Solutions Manual Fundamentals Of Differential Equations

Fundamentals of Applied Dynamics Advanced Texts in Physics This program of advanced texts covers a broad spectrum of topics that are of current and emerging interest in physics. Each book provides a comprehensive and yet accessible introduction to a field at the forefront of modern research. As such, these texts are intended for senior undergraduate and graduate students at the M.S. Levels; however, research scientists seeking an introduction to particular areas of physics will also benefit from the titles in this collection. Tenenbaum Fundamentals of Applied Dynamics With 568 Figures Roberto A. Tenenbaum Departamento de Engenharia Mecaˆnica, EE Programa de Engenharia Mecaˆnica COPPE Universidade Federal do Rio de Janeiro Caixa Postal 68503 Rio de Janeiro, 21945-970 RJ Brasil Translated by Elvyn Laura Marshall based on the Portuguese edition, (Dinaˆmica, Editora da UFRJ, Rio de Janeiro, 1997). Library of Congress Cataloging-in-Publication Data Tenenbaum, Roberto A.

Fundamentals of Applied Dynamics / Roberto A. Includes bibliographical references and index. ISBN 0-387-00887-X (acid-free paper) 1. QA845.T37 2003 531′.11—dc454 ISBN 0-387-00887-X Printed on acid-free paper.  2004 Springer-Verlag New York, Inc. All rights reserved.

This work may not be translated or copied in whole or in part without the written permission of the publisher (Springer-Verlag New York, Inc., 175 Fifth Avenue, New York, NY 10010, USA), except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. Printed in the United States of America.

9 8 7 6 5 4 3 2 1 SPIN 10922149 www.springer-ny.com Springer-Verlag New York Berlin Heidelberg A member of BertelsmannSpringer Science+Business Media GmbH I dedicate this book to everyone who makes a real effort to improve himself or herself, and especially to Viviane, Isabela, and Miguel. This page intentionally left blank PPPPPreface When faced with a new textbook on dynamics, a natural question con- fronts the reader: What is the textbook contribution, if any, relative to the many others already available in the field? With regard to funda- mental theory, there is clearly no possible difference, for since Newton, Euler, Lagrange, and D’Alembert there have been no significant de- velopments in the realm of classical mechanics. Nonetheless there has been a generalized and growing dissatisfaction with available textbooks on dynamics. The difficulty encountered by engineering students, or even recent graduates in this area, in correctly analyzing a somewhat more complex mechanical system can be seen as evidence of this dis- satisfaction. In an era when engineers face challenges such as modeling a system with several degrees of freedom, designing a mechanical arm, analyzing the stability of an underwater robot, actively controlling the chassis movement of a motor car, or accurately predicting the trajec- tory of a satellite, as examples, a thorough understanding of dynamics is indispensable. When confronted with the challenge of a nonconventional prob- lem on classical mechanics, the engineer must not and may not lose himself in a multitude of formulae and methods.

In order to safely ob- tain a solution it is necessary to recognize with accuracy the forces and torques which act upon the system, to identify the number of degrees of freedom with absolute certainty, and to choose appropriate reference coordinates, bases, and axes, describing the motion of the system as a viii Preface function of the chosen coordinates. To correctly describe the system he or she must master the use of intermediary reference frames. One must also be able to set up the inertia matrices of the system, write a coherent set of equations of motion and kinematics constraints equations, and, fi- nally, solve them or extract relevant information from them. To master all these techniques and consequently be capable of obtaining a reliable result, it is of the utmost importance to have a thorough knowledge of the fundamental concepts of dynamics and, at the same time, to have a solid training in problem-solving methodology. This book gradually began to take shape as the result of the experience gained over 30 years of teaching — and learning — dynamics and related subjects.

It originated from the need for a textbook more in accordance with the methodological unity dictated by the subject and which could simultaneously fulfill the tasks of teaching and training. The reader will find that the text almost always introduces general con- cepts before introducing specific ones. The author’s deliberate choice to do so only appears to present more difficulties at the very begin- ning. Didactic experience, however, demonstrates the exact opposite: The student, exposed to a concept in its most general form, will rapidly become accustomed to it and will easily master the simplifications which occur in special cases and, most important of all, will not hesitate when faced with more complex situations. In this book, each new concept is introduced along with an illustrative example. Since theory and prac- tice accompany each other, the student is able to implicitly learn useful problem-solving techniques. It is precisely the methodological approach used in this book, the author believes, that characterizes its contribution, modest though it may be.

Solutions Manual Fundamentals Of Differential Equations

Although the presentation of concepts is somewhat rigorous, the purpose of this approach is to avoid ambiguities and to develop in the reader the habit of thinking a little more abstractly. Aside from this, several concepts, such as the definition of vector systems, the no- tion of the angular velocity of a rigid body, or the introduction of the concept of a particle inertia tensor, among others, are presented in a manner considered unusual in basic textbooks of mechanics. The text- book presents a unity within the discipline that is evident to any mini- mally attentive reader and that is supported by the consistent notation Preface ix and the methodology used throughout the book.

In this manner particle dynamics, system dynamics, and rigid body dynamics, notwithstanding their specificities, are treated uniformly, so that a beginner in the subject will always recognize the principles which permeate the discipline. The text presents the so-called Newtonian mechanics. Hamil- ton’s, Lagrange’s, or Kane’s formulations are therefore not discussed here.

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Experience has shown that a solid basis in Newton-Euler mechan- ics is a prerequisite for readily mastering the methods of analytic me- chanics, thus strengthening the intuition of the future engineer. This is a deliberate choice of the author.

This texbook can be seen as a support for an undergraduate first course in dynamics. However, it is intended to prepare engineers to solve simple problems in dynamics and, on the other hand, to create a solid base for a graduate course on analytical mechanics. In this way, graduate students in physics, engineering, and correlate areas will find the text useful. Instructors will find the text to be reasonably complete, includ- ing theory, examples, and problems, covering the essential material to be taught in a two-semester dynamics course, each semester consisting of around 60 hours.

Usually the first four chapters can be covered dur- ing the first semester and the last four during the second. The.

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