Vibration Testing : Theory and Practice
by: Kenneth G. McConnell, Paulo S. Varoto
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Topics include: transfer accelerance, dimensionless frequency ratio, bare vehicle, exciter table, interface acceleration, channel frequency analyzer, acceleration frequency spectrum, exciter base, resulting frequency analysis, digital filter characteristics, structure under test, zoom analysis, structural damping case, primary sensing axis, modal dynamic stiffness, characteristic frequency equation, damped foundation, filter leakage, mode power amplifier, temporal mean square, receptance plot, accelerance plot, input frequency spectrum, acceleration transmissibility, power amplifier operation, John Wiley, International Modal Analysis Conference, Kjaer Instruments, Iowa State University, Courtesy of Experimental Mechanics, Institute of Environmental Sciences, Courtesy Bruel, Englewood Cliffs, Technical Review, Random Data, Mechanical Vibrations, Impact Tests, Engineering Mechanics, Modal Testing, Kjaer Model, Prentice Hall, Systems Corp, Research Studies Press, Experimental Techniques, Force Measurements, Base Strain Effects, Term Project Report, Theory of Vibration, Free Free Structure, Mechanical Systems
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Book Description
A new, comprehensive field and laboratory guide for vibration testing
Here, for the first time, is a complete and self-contained volume that shows how to perform vibration tests and experiments with confidence. Because so many factors?environmental and structural, instrument-related and human?come into play in the vibration-testing environment, obtaining meaningful measurements by means of transducers can be challenging for engineers, researchers, and graduate students alike.
Vibration Testing: Theory and Practice not only shows how to avoid the pitfalls inherent in using modern instruments and methods but also covers all the important elements involved in conducting vibration tests, and builds an understanding of the theory through practical applications in laboratory and field environments.
Based on the author's 30 years of experience in vibration testing and research, this clearly written, logically presented book:
? Provides a review of the fundamentals of vibration theory
? Brings the theory and practice of vibration testing up to date with all current instrumentation and research data
? Covers transducers, their calibration as well as their limitations
? Includes a complete chapter on vibration test specifications
? Helps develop a sense of how instruments work individually as well as how they function as part of a testing environment
? Includes practical examples that can be used for personnel training purposes
Addressing concerns of both experimental researchers and product testers, and covering a wide range of field and laboratory situations, Vibration Testing: Theory and Practice is an extremely useful book for anyone striving to achieve meaningful results in vibration testing.
Vibration testing is used to analyze the integrity of systems in a variety of applications that range from circuit boards and aircraft to steam turbines and home appliances. Conducting these tests in either the field or laboratory involves the use of data analyzers, instruments, and vibration exciters. The use of equipment and interpretation of test results require considerable understanding of vibration phenomena as well as analysis and experimental concepts. Consequently, the user of this equipment can be the dominant influence on the quality of test results.
Vibration Testing: Theory and Practice is a step-by-step guide that shows how to obtain meaningful experimental results via the proper use of modern instrumentation, vibration exciters, and signal-processing equipment, with particular emphasis on how different types of signals are processed with a frequency analyzer. Also included are techniques for reading test results effectively and a discussion of how the test system's own dynamics can influence test results.
Using practical lessons to introduce the theoretical aspects of vibration testing, the book covers all basic concepts and principles underlying dynamic testing, explains how current instruments and methods operate within the dynamic environment, and describes their behavior in a number of commonly encountered field and laboratory test situations.
Vibration Testing: Theory and Practice deals with a wide range of product and production testing involving vibration, acoustics, and noise problems in the vibration-testing environment, whether relating to industrial applications or experimental work. It is an invaluable resource for graduate students, research-ers, and practicing engineers in aerospace, mechanical, and civil engineering.
The publisher, John Wiley and Sons -- Based on the author's 30 years of experience and eight years of research, this book provides an integrated overview of the important elements involved in conducting vibration tests in the field and laboratory. Describes electrical and mechanical models of the parameters that affect transducer performance to offer an understanding of an instrument's limitations and how users can influence their behavior. Thoroughly discusses the digital frequency analyzer's operation and the dynamic performance of electrodynamic vibration exciters with either current or voltage mode amplifiers. Explores the practical aspects of running such tests as step relaxation, impulse, sinusoidal and random using the vibration test elements. Includes a number of simple case studies and answers fundamental questions with regard to how field data is obtained, stored and converted to useful test specifications.
Table of Contents
An Overview of Vibration Testing
Dynamic Signal Analysis
Vibration Concepts
Transducer Measurement Considerations
The Digital Frequency Analyzer
Vibration Exciters
The Application of Basic Concepts to Vibration Testing
General Vibration Testing Model: From the Field to the Laboratory
Index
About the Author -- KENNETH G. McCONNELL is Professor of Aerospace Engineering and Engineering Mechanics at Iowa State University of Science and Technology. He has been involved in vibration testing and research for over 30 years. In 1994 the Society for Experimental Mechanics named Dr. McConnell the recipient of its William M. Murray Lecture Award, the Society's highest honor, "in recognition of his outstanding contributions to SEM in the fields of dynamic instrumentation, vibration testing techniques, and fluid structure inter-action." Among his recent publications is Instrumentation for Engineering Measurements, Second Edition, coauthored with J.W. Dalley and W.F. Riley, and published by Wiley.
Reviews:
Very good book that covers theory and experiment -- May be this is the first book for scientists in the field of (aero and mechanical) vibration. It covers brief theory of dynamic signal analysis (chapter 2), vibration concepts (chapter 3), transducer measurement considerations, digital frequency analyzer, vibration exciters, and vibration testing. However, students may find that the theory presented in chapters 2 and 3 'too brief' to understand and need to refer to other books. For (new) experimental scientiests in the field of vibration, the book is very valuable since it reveals theoretical background of vibration sensors, exciters, and their effects on speciments dynamics.