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9780471666516

Vibration Testing Theory and Practice

by ;
  • ISBN13:

    9780471666516

  • ISBN10:

    0471666513

  • Edition: 2nd
  • Format: Hardcover
  • Copyright: 2008-10-06
  • Publisher: Wiley
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Summary

Vibration Testing: Theory and Practice, Second Edition 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. Thoroughly updated, this new edition 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.

Author Biography

KENNETH G. McCONNELL, PE, is Professor Emeritus, Aerospace Engineering and Engineering Mechanics, Iowa State University, and has over forty-three years' experience in vibrations and experimental mechanics. He is a Fellow of the Society of Experimental Mechanics, and recipient of SEM's M.M. Frocht Award for "outstanding achievement as an experimental mechanics educator"; SEM's highest award, the William M. Murray Lecturer, for his "outstanding contribution to SEM in the fields of dynamic instrumentation, vibration testing techniques, and fluid structure interaction"; the D.J. DeMichele Award for "promoting the scientific and educational aspects of modal analysis"; and the Brewer Award, "in recognition of his contributions as an outstanding practicing experimental stress analyst." He is the author of Instrumentation for Engineering Measurements, Second Edition (coauthored with James E. Dally and William F Riley and published by Wiley) and other books in the field.

PAULO S. VAROTO is professor on Dynamics and Vibrations at the Mechanical Engineering Department, School of Engineering of São Carlos, University of São Paulo. Professor Varoto earned his BSc and MSc in mechanical engineering from the University of São Paulo and holds a PhD in engineering mechanics from the Department of Aerospace Engineering and Engineering Mechanics, Iowa State University, where he worked under the supervision of Ken McConnell.

Table of Contents

An Overview Of Vibration Testing
Introduction
Preliminary Considerations
General Input/Output Relationships in the Frequency Domain
Overview of Equipment Employed
Summary
Dynamic Signal Analysis
Introduction
Signal Classification
Temporal Mean Value
Temporal Mean Square and Temporal Root Mean Square
The Frequency Spectrum
Analysis of a Single Sinusoid
Phasor Representation of Periodic Functions
The Phasor
The Phasor and Real-Valued Sinusoids
Periodic Time Histories
Periodic Fourier Series
The Mean, Mean Square, and Parseval's Formula
Analysis of a Square Wave
Transient Signal Analysis
Difference Between Periodic and Transient Frequency Analysis
The Transient Fourier Transform
Transient Mean, Mean Square, And Parseval's Formula
Correlation Concepts - A Statistical Point of View
Correlation Concepts - Periodic Time-Histories
Cross-Correlation
Auto-Correlation
Correlation Concepts - Transient Time-Histories
Cross-Correlation
Auto-Correlation
rrelation Concepts - Random Time Histories
Auto-Correlation and Auto-Spectral Density
Correlation and Spectral Densities of Multiple Random Processes
Statistical Distributions
Summary
General References on Signal Analysis.References
Vibration Concepts
Introduction
The Single DOF Model
Equation of Motion
Free Undamped Vibration
Free Damped Vibration
Structure Orientation and Natural Frequency
Single Degree of Freedom Forced Response
The Viscous Damping Case
Common Frfs
Damping Models in Forced Response
The Structural Damping Response
The Bode Diagram
Real & Imaginary Plots and Nyquist Diagrams
General Input-Output Model for Linear Systems
The Frequency-Domain (Fourier Transform) Approach
The Time-Domain Impulse Response Approach
Receptance Frf Vs Impulse Response Function
Random Input-Output Relationships
Shock Response Spectra
The Two Degree of Freedom Vibration Model
Equations of Motion
Undamped Natural Frequencies and Mode Shapes
Steady State Forced Vibration Response (Direct Method)
Steady State Forced Response (Modal Method)
Comparison of Direct and Modal Response FRFs
The Second Order Continuous Vibration Model
The Fundamental Equation of Motion
Separation of Space and Time Variables
Orthogonality Conditions
The Modal Model and Forced Vibrations
The Generalized Excitation Force for Distributed Loads
Continuous Model FRFs
Fourth Order Continuous Vibration System - The Beam
The Fundamental Equation of Motion
Natural Frequencies and Mode Shapes
Natural Frequencies and Boundary Conditions
The Modal Model
The Beam Under Tension
Non-Linear Behavior
The Phase Plane
The Simple Pendulum
The Duffing Equation of Forced Vibration
The Van Der Pol Equation and Limit Cycles
The Mathieu Equation
Chaotic Vibration
Summary.References
Transducer Measurement Considerations
Introduction
Fixed Reference Transducers
The Linear Variable Differential Transformer (LVDT)
Table of Contents provided by Publisher. All Rights Reserved.

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