Modal Testing Theory and Practice

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Preface
Acknowledgements
Contents
Cap 1. Overview
- 1.1. Introduction to Modal Testing
- 1.2. Applications of Modat Testing
- 1.3. Philosophy of Modal Testing
- 1.4. Summary of Theory
- 1.5. Summary of Measurement Methods
- 1.6. Summary of Analysis
- 1.7. Review of Test Procedure
Cap 2. Theoretical Basis
- 2.0. Introduction
- 2.1. SDOF System Theory
- 2.2. Presentation and Properties of the FRF Data for SDOF System
- 2.3. Undamped MDOF System
- 2.4. Proportional Damping
- 2.5. Hysteretical Damping - General Case
- 2.6. Viscous Damping - Genaral Case
- 2.7. Characteristics and Presentation of MDOF FRF Data
- 2.8. Complete and Incomplete Models
- 2.9. Non-Sinusoidal Vibration and FRF Properties
- 2.10. Analysis of Weakly Nonlinear Structures
Cap 3. Mobility Measurement Techniques
- 3.0. Introduction
- 3.1. Basic Measurement System
- 3.2. Structure Preparation
- 3.3. Excitation of the Structure
- 3.4. Transducers and Amplifiers
- 3.5. Analysers
- 3.6. Digital Signal Processing
- 3.7. Use of Different Excitation Types
- 3.8. Calibration
- 3.9. Mass Cancellation
- 3.10. Rotational Mobility Measurement
- 3.11. Measurements on Nonlinear Structures
- 3.12. Multi-Point Excitation Methods
Cap 4. Modal Parameter Extraction Methods
- 4.0. Introduction
- 4.1. Preliminary Checks of FRF Data
- 4.2. SDOF Modal Analysis I - Peak-Amplitude
- 4.3. SDOF Modal Analysis II - Circle-Fit Method
- 4.4. SDOF Modal Analysis I - Inverse Method
- 4.5. Residuals
- 4.6. MDOF Curve-Fitting Procedures
- 4.7. MDOF Curve-Fitting in the Time Domain
- 4.8. Multi-Curve Fits
- 4.9. Nonlinear Systems
Cap 5. Derivations of Mathematical Models
- 5.0. Introduction
- 5.1. Modal Models
- 5.2. Display of Modal Model
- 5.3. Response Models
- 5.4. Spatial models
- 5.5. Mobility Skeletons and System Models
Cap 6. Applications
- 6.0. Introduction
- 6.1. Comparison of Experiment and Prediction
- 6.2. Correction or Adjustment of Models
- 6.3. Structural Modification
- 6.4. Coupled Structure Analysis
- 6.5. Response Prediction and Force Determination
References
General Notations
Appendix 1. Complex Algebra
Appendix 2. Matrix
Appendix 3. Fourier Analysis
Index