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Vibration and acoustics : measurement and signal analysis /
"This book explains all topics concerning vibration and acoustic measurements, as well as signal analysis techniques, in a simple and concise manner.".
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
New York, N.Y. :
McGraw-Hill Education,
[2010]
|
| Edición: | First edition. |
| Colección: | McGraw-Hill's AccessEngineering.
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- A. Dedication
- B. Preface
- Organization
- C. Acknowledgements
- 1. Introduction
- Need for vibration and acoustic measurements
- Signals and their representation
- 2. Theory of vibration
- Introduction
- Single-degree-of-freedom system
- Two-degree-of-freedom system
- Multi-degree-of-freedom system
- Further readings
- 3. Vibration transducers
- Introduction
- Classification of transducers
- Earliest vibration transducer: the hand vibrograph
- Absolute measuring transducers or seismic transducers
- Displacement transducers
- Velocity transducers
- Acceleration transducers
- Other vibration transducers
- Smart sensors (plug and play devices) and transducer electronic data sheets (teds)
- Comparison of transducers
- Further readings
- 4. Vibration excitation techniques
- Introduction to vibration excitation
- Vibration exciters of the contact type
- Non-intrusive (non-contact) excitation techniques
- Shock testing
- Further readings
- 5. Other transducers and equipment related to vibration measurement
- Introduction
- Strain gauges
- Transducers for force measurement
- Transducers for torque measurement
- Pressure transducers
- Equipment which facilitate measurements on rotating structures
- Signal conditioning amplifiers
- Further readings
- 6. Fundamentals of signal analysis
- Introduction
- Various steps in data acquisition and processing
- Some important signal operations
- Some important concepts related to signals and systems
- Frequency domain analysis
- Sampling of continuous time signals
- The fast fourier transform
- Fft analyser setup
- Leakage and windowing
- Averaging
- Zoom
- Further readings
- 7. Dealing with random signals
- Introduction
- Modelling of random processes
- Probabilistic model
- Some common distributions
- Statistical descriptors for random signals
- Classification of random data
- Frequency domain representation of random signals
- Response of an sdof system
- Further readings
- 8. Common vibration monitoring and analysis techniques
- Introduction
- Sources of vibration in rotating machines
- Transducer considerations
- Vibration data collection errors and their effects
- Ways of displaying vibration data
- Time domain analysis
- Statistical/probabilistic descriptors of vibration signals
- Lissajous pattern/orbit plots
- Phase (relative motion) analysis in the time domain
- Mode shape analysis
- Frequency domain analysis/spectrum analysis (amplitude versus frequency)
- Order tracking/rpm-based measurements
- Bod? plots
- Polar plot/nyquist plot
- Cepstrum (quefrency domain) analysis
- Envelope analysis/demodulation technique
- Parametric spectra using autoregrassive (ar) and autoregressive moving average (arma) models
- Advanced fault diagnostic techniques
- Wavelet analysis
- Fault classification using ann
- Classification using support vector machines (svm)
- Further readings.
- 9. Vibration severity and standards
- Introduction
- Classification of severity of machinery vibration
- Sensitivity of human beings to vibration
- Ride comfort analysis in rail vehicles
- Vibrations affecting people in buildings
- Further readings
- 10. Basics of experimental modal analysis
- Introduction
- Important experimental aspects of modal testing
- Representation and properties of frf data of sdof and mdof systems
- Obtaining frfs with true random excitation
- Signal processing problems and solutions in modal analysis
- Modal parameter extraction methods for sdof and mdof systems
- Damage detection from modal parameters
- Further readings
- 11. Fundamentals of acoustics
- Human perception of sound
- Sound wave propagation in 1-d
- Sound propagation in 3-d space: the 3-d wave equation
- Some important acoustic quantities and relations
- Sound transmission from one medium to another with normal incidence
- Acoustics of enclosed spaces
- Further readings
- 12. Acoustic transducers
- Parameters to be considered in the choice of microphones
- Various types of microphones
- Acoustic exciters
- Acoustic calibrators
- Further readings
- 13. Common measurements in acoustics
- Introduction
- Sound level measurement
- Sound power from sound pressure level measurement
- Sound intensity measurement
- Reverberation time measurements
- Sound absorption measurement
- Measurement of sound transmission loss
- Acoustic chambers
- Community reaction to noise
- Further readings
- 14. Typical vibration/noise measurements and case studies
- Evaluation of loss factors of rubber specimens
- Evaluation of vibration damping characteristics of tubes
- Vibration test on torsional vibration damper
- Calibration of transducers
- Ground vibration due to blasting
- A case study on floor vibration measurements
- Vibration isolation of a 28-hp engine
- Heavy vehicle dynamics?comparison of ride comfort between vehicle with leaf spring and hydropneumatic suspensions
- Dynamic studies of railways bogies
- Vibration and ride comfort studies on a tracked vehicle
- Experimental modal analysis
- Vibration measurement on turbine blades in a power station
- Study of sound from a 106 mw power plant
- Evaluation of rubber impregnated steel roller chains for noise reduction and vibration damping characteristics
- Sound intensity measurement on helicopter.