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Medientyp: Buch Titel: Noise and vibration analysis : signal analysis and experimental procedures Enthält: Machine generated contents note: Preface -- List of Abbreviations -- List of Symbols -- 1 Introduction -- 1.1 Noise and Vibration -- 1.2 Noise and Vibration Analysis -- 1.3 Application Areas -- 1.4 Analysis of Noise and Vibrations -- 1.5 Standards -- 1.6 Becoming a Noise and Vibration Analysis Expert -- 2 Dynamic Signals and Systems -- 2.1 Introduction -- 2.2 Periodic Signals -- 2.3 Random Signals -- 2.4 Transient Signals -- 2.5 RMS Value and Power -- 2.6 Linear Systems -- 2.7 The Continuous Fourier transform -- 2.8 Chapter Summary -- 2.9 Problems -- References -- 3 Time Data Analysis -- 3.1 Introduction to Discrete Signals -- 3.2 The Sampling Theorem -- 3.3 Filters -- 3.4 Time Series Analysis -- 3.5 Chapter Summary -- 3.6 Problems -- References -- 4 Statistics and Random Processes -- 4.1 Introduction to the Use of Statistics -- 4.2 Random Theory -- 4.3 Statistical Methods -- 4.4 Quality Assessment of Measured Signals -- 4.5 Chapter Summary -- 4.6 Problems -- References -- 5 Fundamental Mechanics -- 5.1 Newton & acute's Laws -- 5.2 The Single Degree-of-Freedom System (SDOF) -- 5.3 Alternative Quantities for Describing Motion -- 5.4 Frequency Response Plot Formats -- 5.5 Determining Natural Frequency and Damping -- 5.6 Rotating Mass -- 5.7 Some Comments on Damping -- 5.7.1 Hysteretic damping -- 5.8 Models Based on SDOF Approximations -- 5.9 The Two-Degree-of-Freedom System (2DOF) -- 5.10 The Tuned Damper -- 5.11 Chapter Summary -- 5.12 Problems -- References -- 6 Modal Analysis Theory -- 6.1 Waves on a String -- 6.2 Matrix formulations -- 6.3 Eigenvalues and Eigenvectors -- 6.4 Frequency Response of MDOF Systems -- 6.5 Time Domain Simulation of Forced Response -- 6.6 Chapter Summary -- 6.7 Problems -- References -- 7 Transducers for Noise and Vibration Analysis -- 7.1 The Piezoelectric Effect -- 7.2 The Charge Amplifier -- 7.3 TransducersWith Built-In Impedance Converters, 'IEPE' -- 7.4 The Piezoelectric Accelerometer -- 7.5 The Piezoelectric Force Transducer -- 7.6 The Impedance Head -- 7.7 The Impulse Hammer -- 7.8 Accelerometer Calibration -- 7.9 Measurement Microphones -- 7.10 Microphone Calibration -- 7.11 Shakers for Structure Excitation -- 7.12 Some Comments on Measurement Procedures -- 7.13 Problems -- References -- 8 Frequency Analysis Theory -- 8.1 Periodic Signals - The Fourier Series -- 8.2 Spectra of Periodic Signals -- 8.3 Random processes -- 8.4 Transient Signals -- 8.5 Interpretation of spectra -- 8.6 Chapter Summary -- 8.7 Problems -- References -- 9 Experimental Frequency Analysis -- 9.1 Frequency Analysis Principles -- 9.2 Octave and Third-Octave Band Spectra -- 9.3 The Discrete Fourier Transform (DFT) -- 9.4 Chapter Summary -- 9.5 Problems -- References -- 10 Spectrum and Correlation Estimates Using the DFT -- 10.1 Averaging -- 10.2 Spectrum Estimators for Periodic Signals -- 10.3 Estimators for PSD and CSD -- 10.4 Estimator for Correlation Functions -- 10.5 Estimators for Transient Signals -- 10.6 Spectrum Estimation in Practice -- 10.7 Multi-Channel Spectral Analysis -- 10.8 Chapter Summary -- 10.9 Problems -- References -- 11 Measurement and Analysis Systems -- 11.1 Principal Design -- 11.2 Hardware for Noise and Vibration Analysis -- 11.3 FFT Analysis software -- 11.4 Chapter Summary -- 11.5 Problems -- References -- 12 Rotating Machinery Analysis -- 12.1 Vibrations in Rotating Machines -- 12.2 Understanding Time-Frequency Analysis -- 12.3 Rotational Speed Signals (Tachometer Signals) -- 12.4 RPM Maps -- 12.5 Smearing -- 12.6 Order Tracks -- 12.7 Synchronous Sampling -- 12.8 Averaging Rotation-Speed Dependent Signals -- 12.9 Adding Change in RMS With Time -- 12.10Parametric methods -- 12.11Chapter summary -- 12.12Problems -- References -- 13 Single-Input Frequency Response Measurements -- 13.1 Linear Systems -- 13.2 Determining Frequency Response Experimentally -- 13.3 Important Relationships for Linear Systems -- 13.4 The Coherence Function -- 13.5 Errors in Determining the Frequency Response -- 13.6 Coherent Output Power -- 13.7 The Coherence Function in Practice -- 13.8 Impact Excitation -- 13.9 Shaker Excitation -- 13.10Examples of FRF Estimation - No Extraneous Noise -- 13.11Example of FRF Estimation - With Output Noise -- 13.12Examples of FRF Estimation - With Input and Output Noise -- 13.13Chapter Summary -- 13.14Problems -- References -- 14 Multiple-Input Frequency Response Measurement -- 14.1 Multiple-Input Systems -- 14.2 Conditioned Input Signals -- 14.3 Bias and Random Errors for Multiple-Input Systems -- 14.4 Excitation Signals for MIMO Analysis -- 14.5 Data Synthesis and Simulation Examples -- 14.6 Real MIMO Data Case -- 14.7 Chapter Summary -- 14.8 Problems -- References -- 15 Orthogonalization of Signals -- 15.1 Principal Components -- 15.2 Virtual Signals -- 15.3 Noise Source Identification (NSI) -- 15.4 Chapter Summary -- 15.5 Problems -- References -- 16 Advanced Analysis Methods -- 16.1 Shock Response Spectrum -- 16.2 The Hilbert Transform -- 16.3 Cepstrum Analysis -- 16.4 The Envelope Spectrum -- 16.5 Creating Random Signals With Known Spectral Density -- 16.6 Operational Deflection Shapes - ODS -- 16.7 Introduction to Experimental Modal Analysis -- 16.8 Chapter Summary -- 16.9 Problems -- References -- References -- A Complex Numbers -- B Logarithmic Diagrams -- C Decibel -- D Some Elementary Matrix Algebra -- References -- E Eigenvalues and the SVD -- E.1 Eigenvalues and Complex Matrices -- E.2 The Singular Value Decomposition (SVD) -- References -- F Organizations and Resources -- Index . Beteiligte: Brandt, Anders [VerfasserIn] Erschienen: Chichester: Wiley, 2011 Umfang: xiii, 438 Seiten; Diagramme (schwarz-weiß) Sprache: Englisch ISBN: 9780470746448 RVK-Notation: ZL 3050 : Maschinendynamik, Maschinenakustik, Maschinenlärm UF 6900 : Angewandte und technische Akustik, Schalltechnik UF 5000 : Schwingungen und Wellen allgemein ZQ 3850 : Messung von Schwingungen allgemein und von mechanischen Schwingungen ZQ 3860 : Messung akustischer Schwingungen (Lärmmessung, Geräuschmessung) Schlagwörter: Maschinenschwingung > Signalverarbeitung Maschinenlärm Technische Akustik Lärm > Schwingung Schallanalyse Entstehung: Anmerkungen: Literaturangaben
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