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Modal Testing: Theory, Practice, and Application

D.J. Ewins
Format
Book
Published
Baldock, Hertfordshire, England ; Philadelphia, PA : Research Studies Press , c2000.
Edition
2nd ed
Language
English
Series
Mechanical Engineering Research Studies
ISBN
0863802184, 0471975184 (Wiley : hardback)
Contents
  • 1.2 Applications of Modal Testing 3
  • 1.3 Philosophy of Modal Testing 6
  • 1.4 Summary of Theory 8
  • 1.5 Summary of Measurement Methods 14
  • 1.6 Summary of Modal Analysis Processes 16
  • 1.7 Review of Test Procedures, and Levels 20
  • 1.8 Terminology and Notation 21
  • Chapter 2 Theoretical Basis
  • 2.2 Single-Degree-of-Freedom (SDOF) System Theory 28
  • 2.3 Presentation and Properties of FRF Data for SDOF System 34
  • 2.4 Undamped Multi-Degree-of-Freedom (MDOF) Systems 49
  • 2.5 MDOF Systems with Proportional Damping 62
  • 2.6 MDOF Systems with Structural (Hysteretic) Damping--General Case 66
  • 2.7 MDOF Systems with Viscous Damping--General Case 74
  • 2.8 Modal Analysis of Rotating Structures 80
  • 2.9 Complex Modes 113
  • 2.10 Characteristics and Presentation of MDOF FRF Data 117
  • 2.11 Non-sinusoidal Vibration and FRF Properties 132
  • 2.12 Complete and Incomplete Models 144
  • 2.13 Sensitivity of Models 150
  • 2.14 Analysis of Weakly Non-linear Structures 154
  • Chapter 3 Response Function Measurement Techniques
  • 3.1 Introduction and Test Planning 163
  • 3.2 Basic Measurement System 168
  • 3.3 Structure Preparation 170
  • 3.4 Excitation of the Structure 174
  • 3.5 Transducers and Amplifiers 194
  • 3.6 Analysers 207
  • 3.7 Digital Signal Processing 209
  • 3.8 Use of Different Excitation Signals 227
  • 3.9 Calibration 254
  • 3.10 Mass Cancellation 257
  • 3.11 Rotational FRF Measurement 260
  • 3.12 Measurements on Non-Linear Structures 265
  • 3.13 Multi-point Excitation Methods 271
  • 3.14 Measuring FRFs and ODSs using the Scanning LDV 276
  • Chapter 4 Modal Parameter Extraction Methods
  • 4.2 Preliminary Checks of FRF Data 292
  • 4.3 SDOF Modal Analysis Methods 303
  • 4.4 MDOF Modal Analysis in the Frequency Domain (SISO) 331
  • 4.5 Global Modal Analysis Methods in the Frequency Domain 342
  • 4.6 MDOF Modal Analysis in the Time Domain 349
  • 4.7 Modal Analysis of Non-Linear Structures 359
  • Chapter 5 Derivation of Mathematical Models
  • 5.2 Modal Models 373
  • 5.3 Refinement of Modal Models 380
  • 5.4 Display of Modal Model 391
  • 5.5 Response Models 396
  • 5.6 Spatial Models 404
  • 5.7 Mobility Skeletons and System Models 405
  • Chapter 6 Applications
  • 6.2 Comparison of and Correlation of Experiment and Prediction 416
  • 6.3 Adjustment or Updating of Models 446
  • 6.4 Coupled and Modified Structure Analysis 469
  • 6.5 Response Prediction and Force Determination 499
  • 6.6 Test Planning 506
  • Appendices A Maths Toolkit
  • 1 Use of Complex Algebra to Describe Harmonic Vibration 521
  • 2 Review of Matrix Notation and Properties 523
  • 3 Matrix Decomposition and the SVD 529
  • 4 Transformations of Equations of Motion between Stationary and Rotating Axes 537
  • 5 Fourier Analysis 539.
Description
xiii, 562 p. : ill. ; 24 cm.
Notes
Includes bibliographical references (p. 545-550) and index.
Series Statement
Mechanical engineering research studies. Engineering dynamics series ; 10
Technical Details
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  • Staff View

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    g| 1.2 t| Applications of Modal Testing g| 3 -- g| 1.3 t| Philosophy of Modal Testing g| 6 -- g| 1.4 t| Summary of Theory g| 8 -- g| 1.5 t| Summary of Measurement Methods g| 14 -- g| 1.6 t| Summary of Modal Analysis Processes g| 16 -- g| 1.7 t| Review of Test Procedures, and Levels g| 20 -- g| 1.8 t| Terminology and Notation g| 21 -- g| Chapter 2 t| Theoretical Basis -- g| 2.2 t| Single-Degree-of-Freedom (SDOF) System Theory g| 28 -- g| 2.3 t| Presentation and Properties of FRF Data for SDOF System g| 34 -- g| 2.4 t| Undamped Multi-Degree-of-Freedom (MDOF) Systems g| 49 -- g| 2.5 t| MDOF Systems with Proportional Damping g| 62 -- g| 2.6 t| MDOF Systems with Structural (Hysteretic) Damping--General Case g| 66 -- g| 2.7 t| MDOF Systems with Viscous Damping--General Case g| 74 -- g| 2.8 t| Modal Analysis of Rotating Structures g| 80 -- g| 2.9 t| Complex Modes g| 113 -- g| 2.10 t| Characteristics and Presentation of MDOF FRF Data g| 117 -- g| 2.11 t| Non-sinusoidal Vibration and FRF Properties g| 132 -- g| 2.12 t| Complete and Incomplete Models g| 144 -- g| 2.13 t| Sensitivity of Models g| 150 -- g| 2.14 t| Analysis of Weakly Non-linear Structures g| 154 -- g| Chapter 3 t| Response Function Measurement Techniques -- g| 3.1 t| Introduction and Test Planning g| 163 -- g| 3.2 t| Basic Measurement System g| 168 -- g| 3.3 t| Structure Preparation g| 170 -- g| 3.4 t| Excitation of the Structure g| 174 -- g| 3.5 t| Transducers and Amplifiers g| 194 -- g| 3.6 t| Analysers g| 207 -- g| 3.7 t| Digital Signal Processing g| 209 -- g| 3.8 t| Use of Different Excitation Signals g| 227 -- g| 3.9 t| Calibration g| 254 -- g| 3.10 t| Mass Cancellation g| 257 -- g| 3.11 t| Rotational FRF Measurement g| 260 -- g| 3.12 t| Measurements on Non-Linear Structures g| 265 -- g| 3.13 t| Multi-point Excitation Methods g| 271 -- g| 3.14 t| Measuring FRFs and ODSs using the Scanning LDV g| 276 -- g| Chapter 4 t| Modal Parameter Extraction Methods -- g| 4.2 t| Preliminary Checks of FRF Data g| 292 -- g| 4.3 t| SDOF Modal Analysis Methods g| 303 -- g| 4.4 t| MDOF Modal Analysis in the Frequency Domain (SISO) g| 331 -- g| 4.5 t| Global Modal Analysis Methods in the Frequency Domain g| 342 -- g| 4.6 t| MDOF Modal Analysis in the Time Domain g| 349 -- g| 4.7 t| Modal Analysis of Non-Linear Structures g| 359 -- g| Chapter 5 t| Derivation of Mathematical Models -- g| 5.2 t| Modal Models g| 373 -- g| 5.3 t| Refinement of Modal Models g| 380 -- g| 5.4 t| Display of Modal Model g| 391 -- g| 5.5 t| Response Models g| 396 -- g| 5.6 t| Spatial Models g| 404 -- g| 5.7 t| Mobility Skeletons and System Models g| 405 -- g| Chapter 6 t| Applications -- g| 6.2 t| Comparison of and Correlation of Experiment and Prediction g| 416 -- g| 6.3 t| Adjustment or Updating of Models g| 446 -- g| 6.4 t| Coupled and Modified Structure Analysis g| 469 -- g| 6.5 t| Response Prediction and Force Determination g| 499 -- g| 6.6 t| Test Planning g| 506 -- g| Appendices t| A Maths Toolkit -- g| 1 t| Use of Complex Algebra to Describe Harmonic Vibration g| 521 -- g| 2 t| Review of Matrix Notation and Properties g| 523 -- g| 3 t| Matrix Decomposition and the SVD g| 529 -- g| 4 t| Transformations of Equations of Motion between Stationary and Rotating Axes g| 537 -- g| 5 t| Fourier Analysis g| 539.
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