Machinery Vibration and Rotordynamics

John M. Vance 지음

Wiley 2010년 06월 17일 출간

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An in-depth analysis of machine vibration in rotating machineryWhether it's a compressor on an offshore platform, a turbocharger in a truck or automobile, or a turbine in a jet airplane, rotating machinery is the driving force behind almost anything that produces or uses energy. Counted on daily to perform any number of vital societal tasks, turbomachinery uses high rotational speeds to produce amazing amounts of power efficiently. The key to increasing its longevity, efficiency, and reliability lies in the examination of rotor vibration and bearing dynamics, a field called rotordynamics.A valuable textbook for beginners as well as a handy reference for experts, Machinery Vibration and Rotordynamics is teeming with rich technical detail and real-world examples geared toward the study of machine vibration. A logical progression of information covers essential fundamentals, in-depth case studies, and the latest analytical tools used for predicting and preventing damage in rotating machinery. Machinery Vibration and Rotordynamics:Combines rotordynamics with the applications of machinery vibration in a single volumeIncludes case studies of vibration problems in several different types of machines as well as computer simulation models used in industryContains fundamental physical phenomena, mathematical and computational aspects, practical hardware considerations, troubleshooting, and instrumentation and measurement techniquesFor students interested in entering this highly specialized field of study, as well as professionals seeking to expand their knowledge base, Machinery Vibration and Rotordynamics will serve as the one book they will come to rely upon consistently.

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PREFACE.1 Fundamentals of Machine Vibration and Classical Solutions.The Main Sources of Vibration in Machinery.The Single Degree of Freedom (SDOF) Model.Using Simple Models for Analysis and Diagnostics.Six Techniques for Solving Vibration Problems with Forced Excitation.Some Examples with Forced Excitation.Illustrative Example 1.Illustrative Example 2.Illustrative Example 3.Illustrative Example 4.Some Observations about Modeling.Unstable Vibration.References.Exercises.2 Torsional Vibration.Torsional Vibration Indicators.Objectives of Torsional Vibration Analysis.Simplified Models.Computer Models.Kinetic Energy Expression.Potential Energy.Torsional Vibration Measurement.French&-s Comparison Experiments.Strain Gages.Carrier Signal Transducers.Frequency-modulated Systems.Amplitude-modulated Systems.Frequency Analysis and the Sideband System.French&-s Test Procedure and Results.A Special Tape for Optical Transducers.Time-interval Measurement Systems.Results from Toram&-s Method.Results from the Barrios/Darlow Method.References.Exercises.3 Introduction to Rotordynamics Analysis.Objectives of Rotordynamics Analysis.The Spring&~Mass Model.Synchronous and Nonsynchronous Whirl.Analysis of the Jeffcott Rotor.Polar Coordinates.Cartesian Coordinates.Physical Significance of the Solutions.Three Ways to Reduce Synchronous Whirl Amplitudes.Some Damping Definitions.The "Gravity Critical".Critical Speed Definitions.Effect of Flexible (Soft) Supports.Rotordynamic Effects of the Force Coefficients&-A Summary.The Direct Coefficients.The Cross-coupled Coefficients.Rotordynamic Instability.Effect of Cross-Coupled Stiffness on Unbalance Response.Added Complexities.Gyroscopic Effects.Effect of Support Asymmetry on Synchronous Whirl.False Instabilities.References.E

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저자(글) John M. Vance

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Dr. JOHN M. VANCE was professor of mechanical engineering at Texas AM University, retiring in 2007. He received his PhD (1967) degree from The University of Texas at Austin. His book Rotordynamics of Turbomachinery (Wiley) has sold more than 3,000 copies and is used by turbomachinery engineers around the world. He is an inventor on several patents relating to rotating machinery and vibration reduction. His patented TAMSEAL has been retrofitted to solve vibration problems in a number of high-pressure industrial compressors. He is an ASME Fellow and a registered professional engineer in the state of Texas.Dr. FOUAD Y. ZEIDAN is the President of KMC, Inc., and Bearings Plus, Inc., two companies specializing in the supply of high-performance bearings, flexible couplings, and seals. Dr. Zeidan holds nine U.S. patents for integral squeeze film dampers and high-performance journal and thrust bearings. He has published more than thirty technical papers and articles on various turbomachinery topics and has been lecturing at the Annual Machinery Vibrations and Rotordynamics short course since 1991. Dr. Zeidan holds a BS, MS, and PhD degrees in mechanical engineering from Texas AM University.BRIAN T. MURPHY, PhD, PE, is a senior research scientist with the Center for Electromechanics at The University of Texas at Austin. He is also president of RMA, Inc., which develops and markets the Xlrotor suite of rotordynamic analysis software used worldwide by industry and academia. Dr. Murphy is the creator of the polynomial transfer matrix method, which is the fastest known method of performing rotordynamic calculations. He has authored numerous technical papers on rotordynamics and machinery vibration, and is also caretaker of the Web site www.rotordynamics.org.