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Analytical study of acoustic response of a semireverberant enclosure with application to active noise control / / Tony L. Parrott, David B. Schein, Doreen Gridley
| Analytical study of acoustic response of a semireverberant enclosure with application to active noise control / / Tony L. Parrott, David B. Schein, Doreen Gridley |
| Autore | Parrott Tony L. |
| Pubbl/distr/stampa | Washington, D.C. : , : National Aeronautics and Space Administration, Scientific and Technical Information Branch, , December 1985 |
| Descrizione fisica | 1 online resource (45 pages) : illustrations |
| Collana | NASA/TP |
| Soggetto topico |
Turboprop transports - Noise
Aircraft cabins - Noise Sound - Reverberation - Mathematical models Modal analysis Noise control |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910709706803321 |
Parrott Tony L.
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| Washington, D.C. : , : National Aeronautics and Space Administration, Scientific and Technical Information Branch, , December 1985 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Dynamics of civil structures . Volume 2 : proceedings of the 40th IMAC, a conference and exposition on structural dynamics 2022 / / Hae Young Noh, Matthew Whelan, and P. Scott Harvey, editors
| Dynamics of civil structures . Volume 2 : proceedings of the 40th IMAC, a conference and exposition on structural dynamics 2022 / / Hae Young Noh, Matthew Whelan, and P. Scott Harvey, editors |
| Pubbl/distr/stampa | Cham, Switzerland : , : Springer International Publishing, , [2022] |
| Descrizione fisica | 1 online resource (111 pages) |
| Disciplina | 624.171 |
| Collana | Conference Proceedings of the Society for Experimental Mechanics |
| Soggetto topico |
Modal analysis
Structural dynamics |
| ISBN | 3-031-05449-0 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910627272203321 |
| Cham, Switzerland : , : Springer International Publishing, , [2022] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Introduction to operational modal analysis / / Rune Brincker, Carlos E. Ventura
| Introduction to operational modal analysis / / Rune Brincker, Carlos E. Ventura |
| Autore | Brincker Rune |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Chichester, England : , : Wiley, , 2015 |
| Descrizione fisica | 1 online resource (375 p.) |
| Disciplina | 624.171 |
| Soggetto topico |
Modal analysis
Structural analysis (Engineering) |
| ISBN |
1-118-53515-4
1-118-53514-6 1-118-53516-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Cover; Title Page; Copyright; Contents; Preface; Chapter 1 Introduction; 1.1 Why Conduct Vibration Test of Structures?; 1.2 Techniques Available for Vibration Testing of Structures; 1.3 Forced Vibration Testing Methods; 1.4 Vibration Testing of Civil Engineering Structures; 1.5 Parameter Estimation Techniques; 1.6 Brief History of OMA; 1.7 Modal Parameter Estimation Techniques; 1.8 Perceived Limitations of OMA; 1.9 Operating Deflection Shapes; 1.10 Practical Considerations of OMA; 1.11 About the Book Structure; References; Chapter 2 Random Variables and Signals; 2.1 Probability
2.1.1 Density Function and Expectation2.1.2 Estimation by Time Averaging; 2.1.3 Joint Distributions; 2.2 Correlation; 2.2.1 Concept of Correlation; 2.2.2 Autocorrelation; 2.2.3 Cross Correlation; 2.2.4 Properties of Correlation Functions; 2.3 The Gaussian Distribution; 2.3.1 Density Function; 2.3.2 The Central Limit Theorem; 2.3.3 Conditional Mean and Correlation; References; Chapter 3 Matrices and Regression; 3.1 Vector and Matrix Notation; 3.2 Vector and Matrix Algebra; 3.2.1 Vectors and Inner Products; 3.2.2 Matrices and Outer Products; 3.2.3 Eigenvalue Decomposition 3.2.4 Singular Value Decomposition3.2.5 Block Matrices; 3.2.6 Scalar Matrix Measures; 3.2.7 Vector and Matrix Calculus; 3.3 Least Squares Regression; 3.3.1 Linear Least Squares; 3.3.2 Bias, Weighting and Covariance; References; Chapter 4 Transforms; 4.1 Continuous Time Fourier Transforms; 4.1.1 Real Fourier Series; 4.1.2 Complex Fourier Series; 4.1.3 The Fourier Integral; 4.2 Discrete Time Fourier Transforms; 4.2.1 Discrete Time Representation; 4.2.2 The Sampling Theorem; 4.3 The Laplace Transform; 4.3.1 The Laplace Transform as a generalization of the Fourier Transform 4.3.2 Laplace Transform Properties4.3.3 Some Laplace Transforms; 4.4 The Z-Transform; 4.4.1 The Z-Transform as a generalization of the Fourier Series; 4.4.2 Z-Transform Properties; 4.4.3 Some Z-Transforms; 4.4.4 Difference Equations and Transfer Function; 4.4.5 Poles and Zeros; References; Chapter 5 Classical Dynamics; 5.1 Single Degree of Freedom System; 5.1.1 Basic Equation; 5.1.2 Free Decays; 5.1.3 Impulse Response Function; 5.1.4 Transfer Function; 5.1.5 Frequency Response Function; 5.2 Multiple Degree of Freedom Systems; 5.2.1 Free Responses for Undamped Systems 5.2.2 Free Responses for Proportional Damping5.2.3 General Solutions for Proportional Damping; 5.2.4 Transfer Function and FRF Matrix for Proportional Damping; 5.2.5 General Damping; 5.3 Special Topics; 5.3.1 Structural Modification Theory; 5.3.2 Sensitivity Equations; 5.3.3 Closely Spaced Modes; 5.3.4 Model Reduction (SEREP); 5.3.5 Discrete Time Representations; 5.3.6 Simulation of OMA Responses; References; Chapter 6 Random Vibrations; 6.1 General Inputs; 6.1.1 Linear Systems; 6.1.2 Spectral Density; 6.1.3 SISO Fundamental Theorem; 6.1.4 MIMO Fundamental Theorem; 6.2 White Noise Inputs 6.2.1 Concept of White Noise |
| Record Nr. | UNINA-9910131383403321 |
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Brincker Rune
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| Chichester, England : , : Wiley, , 2015 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Modal analysis [[electronic resource] /] / Jimin He and Zhi-Fang Fu
| Modal analysis [[electronic resource] /] / Jimin He and Zhi-Fang Fu |
| Autore | He Jimin |
| Pubbl/distr/stampa | Oxford ; ; Boston, : Butterworth-Heinemann, 2001 |
| Descrizione fisica | 1 online resource (305 p.) |
| Disciplina | 624.1 |
| Altri autori (Persone) | FuZhi-Fang |
| Soggetto topico | Modal analysis |
| Soggetto genere / forma | Electronic books. |
| ISBN |
1-281-02202-0
9786611022020 0-08-051178-3 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Front Cover; Modal Analysis; Copyright Page; Contents; Preface; Chapter 1. Overview of modal analysis; 1.1 Introduction; 1.2 What is modal analysis?; 1.3 What is modal testing?; 1.4 Applications of modal analysis; 1.5 Practical applications of modal analysis; 1.6 Historical development of modal analysis; Chapter 2. Mathematics for modal analysis; 2.1 Basic matrix concepts; 2.2 Linear simultaneous equations; 2.3 Matrix inversion; 2.4 Decomposition of a matrix; 2.5 The matrix eigenvalue problem; 2.6 Derivatives of matrices; 2.7 Perturbation; 2.8 The least-squares method
2.9 Partial fraction expansion2.10 Laplace transform and transfer function; 2.11 Fourier series and Fourier transform; 2.12 Variable separation method for partial differential equations; 2.13 Poles and zeros of a polynomial function; 2.14 State-space concept; 2.15 Time series analysis; 2.16 The z-transform; Chapter 3. Basic vibration theory; 3.1 Modelling of a vibration problem using mathematical models; 3.2 Basic concepts of vibration; 3.3 Free vibration of an SDoF system; 3.4 Harmonic vibration of an SDoF system; 3.5 Vibration of an SDoF system due to an arbitrary force 3.6 Free and harmonically forced vibration of an MDoF system3.7 Energy approach; 3.8 Vibration of continuous systems; Chapter 4. Modal analysis theory of an SDoF dynamic system; 4.1 Frequency response functions of an SDoF system; 4.2 Graphical display of a frequency response function; 4.3 Properties of the FRF of an SDoF system; Chapter 5. Modal analysis of an undamped MDoF system; 5.1 Normal modes and orthogonality of an undamped MDoF system; 5.2 Frequency response functions of an undamped MDoF system; 5.3 Mass-normalized modes and modal model of an undamped MDoF system 5.4 Frequency response functions and the modal model5.5 Asymptote properties of FRFs of an undamped MDoF system; 5.6 Other forms of orthogonality properties of an undamped MDoF system; 5.7 Harmonic response of an undamped MDoF system using FRFs; 5.8 Anti-resonances and minima of an FRF; Chapter 6. Modal analysis of a damped MDoF system; 6.1 Proportional damping models; 6.2 Non-proportional viscous damping model; 6.3 Non-proportional structural damping model; 6.4 Mass-normalized modes of a damped MDoF system; 6.5 Frequency response functions of a damped MDoF system 6.6 Time response of a damped MDoF system6.7 Forced normal modes of a damped MDoF system; 6.8 Remarks on complex modes; Chapter 7. Frequency response function measurement; 7.1 Introduction; 7.2 A general measurement set-up; 7.3 Preparation of the test structure; 7.4 Selection of excitation forces; 7.5 Different estimates of an FRF and effects of noise; 7.6 Two incompletenesses of measured data; 7.7 Initial assessment of measured FRF data; Chapter 8. Modal analysis methods - frequency domain; 8.1 Introduction; 8.2 Detection of vibration modes from measured FRF data 8.3 Derivation of modal data from FRF data - SDoF methods |
| Record Nr. | UNINA-9910457336603321 |
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He Jimin
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| Oxford ; ; Boston, : Butterworth-Heinemann, 2001 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Modal analysis [[electronic resource] /] / Jimin He and Zhi-Fang Fu
| Modal analysis [[electronic resource] /] / Jimin He and Zhi-Fang Fu |
| Autore | He Jimin |
| Pubbl/distr/stampa | Oxford ; ; Boston, : Butterworth-Heinemann, 2001 |
| Descrizione fisica | 1 online resource (305 p.) |
| Disciplina | 624.1 |
| Altri autori (Persone) | FuZhi-Fang |
| Soggetto topico | Modal analysis |
| ISBN |
1-281-02202-0
9786611022020 0-08-051178-3 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Front Cover; Modal Analysis; Copyright Page; Contents; Preface; Chapter 1. Overview of modal analysis; 1.1 Introduction; 1.2 What is modal analysis?; 1.3 What is modal testing?; 1.4 Applications of modal analysis; 1.5 Practical applications of modal analysis; 1.6 Historical development of modal analysis; Chapter 2. Mathematics for modal analysis; 2.1 Basic matrix concepts; 2.2 Linear simultaneous equations; 2.3 Matrix inversion; 2.4 Decomposition of a matrix; 2.5 The matrix eigenvalue problem; 2.6 Derivatives of matrices; 2.7 Perturbation; 2.8 The least-squares method
2.9 Partial fraction expansion2.10 Laplace transform and transfer function; 2.11 Fourier series and Fourier transform; 2.12 Variable separation method for partial differential equations; 2.13 Poles and zeros of a polynomial function; 2.14 State-space concept; 2.15 Time series analysis; 2.16 The z-transform; Chapter 3. Basic vibration theory; 3.1 Modelling of a vibration problem using mathematical models; 3.2 Basic concepts of vibration; 3.3 Free vibration of an SDoF system; 3.4 Harmonic vibration of an SDoF system; 3.5 Vibration of an SDoF system due to an arbitrary force 3.6 Free and harmonically forced vibration of an MDoF system3.7 Energy approach; 3.8 Vibration of continuous systems; Chapter 4. Modal analysis theory of an SDoF dynamic system; 4.1 Frequency response functions of an SDoF system; 4.2 Graphical display of a frequency response function; 4.3 Properties of the FRF of an SDoF system; Chapter 5. Modal analysis of an undamped MDoF system; 5.1 Normal modes and orthogonality of an undamped MDoF system; 5.2 Frequency response functions of an undamped MDoF system; 5.3 Mass-normalized modes and modal model of an undamped MDoF system 5.4 Frequency response functions and the modal model5.5 Asymptote properties of FRFs of an undamped MDoF system; 5.6 Other forms of orthogonality properties of an undamped MDoF system; 5.7 Harmonic response of an undamped MDoF system using FRFs; 5.8 Anti-resonances and minima of an FRF; Chapter 6. Modal analysis of a damped MDoF system; 6.1 Proportional damping models; 6.2 Non-proportional viscous damping model; 6.3 Non-proportional structural damping model; 6.4 Mass-normalized modes of a damped MDoF system; 6.5 Frequency response functions of a damped MDoF system 6.6 Time response of a damped MDoF system6.7 Forced normal modes of a damped MDoF system; 6.8 Remarks on complex modes; Chapter 7. Frequency response function measurement; 7.1 Introduction; 7.2 A general measurement set-up; 7.3 Preparation of the test structure; 7.4 Selection of excitation forces; 7.5 Different estimates of an FRF and effects of noise; 7.6 Two incompletenesses of measured data; 7.7 Initial assessment of measured FRF data; Chapter 8. Modal analysis methods - frequency domain; 8.1 Introduction; 8.2 Detection of vibration modes from measured FRF data 8.3 Derivation of modal data from FRF data - SDoF methods |
| Record Nr. | UNINA-9910784335803321 |
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He Jimin
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| Oxford ; ; Boston, : Butterworth-Heinemann, 2001 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Modal analysis / / Jimin He and Zhi-Fang Fu
| Modal analysis / / Jimin He and Zhi-Fang Fu |
| Autore | He Jimin |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Oxford ; ; Boston, : Butterworth-Heinemann, 2001 |
| Descrizione fisica | 1 online resource (305 p.) |
| Disciplina | 624.1 |
| Altri autori (Persone) | FuZhi-Fang |
| Soggetto topico | Modal analysis |
| ISBN |
1-281-02202-0
9786611022020 0-08-051178-3 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Front Cover; Modal Analysis; Copyright Page; Contents; Preface; Chapter 1. Overview of modal analysis; 1.1 Introduction; 1.2 What is modal analysis?; 1.3 What is modal testing?; 1.4 Applications of modal analysis; 1.5 Practical applications of modal analysis; 1.6 Historical development of modal analysis; Chapter 2. Mathematics for modal analysis; 2.1 Basic matrix concepts; 2.2 Linear simultaneous equations; 2.3 Matrix inversion; 2.4 Decomposition of a matrix; 2.5 The matrix eigenvalue problem; 2.6 Derivatives of matrices; 2.7 Perturbation; 2.8 The least-squares method
2.9 Partial fraction expansion2.10 Laplace transform and transfer function; 2.11 Fourier series and Fourier transform; 2.12 Variable separation method for partial differential equations; 2.13 Poles and zeros of a polynomial function; 2.14 State-space concept; 2.15 Time series analysis; 2.16 The z-transform; Chapter 3. Basic vibration theory; 3.1 Modelling of a vibration problem using mathematical models; 3.2 Basic concepts of vibration; 3.3 Free vibration of an SDoF system; 3.4 Harmonic vibration of an SDoF system; 3.5 Vibration of an SDoF system due to an arbitrary force 3.6 Free and harmonically forced vibration of an MDoF system3.7 Energy approach; 3.8 Vibration of continuous systems; Chapter 4. Modal analysis theory of an SDoF dynamic system; 4.1 Frequency response functions of an SDoF system; 4.2 Graphical display of a frequency response function; 4.3 Properties of the FRF of an SDoF system; Chapter 5. Modal analysis of an undamped MDoF system; 5.1 Normal modes and orthogonality of an undamped MDoF system; 5.2 Frequency response functions of an undamped MDoF system; 5.3 Mass-normalized modes and modal model of an undamped MDoF system 5.4 Frequency response functions and the modal model5.5 Asymptote properties of FRFs of an undamped MDoF system; 5.6 Other forms of orthogonality properties of an undamped MDoF system; 5.7 Harmonic response of an undamped MDoF system using FRFs; 5.8 Anti-resonances and minima of an FRF; Chapter 6. Modal analysis of a damped MDoF system; 6.1 Proportional damping models; 6.2 Non-proportional viscous damping model; 6.3 Non-proportional structural damping model; 6.4 Mass-normalized modes of a damped MDoF system; 6.5 Frequency response functions of a damped MDoF system 6.6 Time response of a damped MDoF system6.7 Forced normal modes of a damped MDoF system; 6.8 Remarks on complex modes; Chapter 7. Frequency response function measurement; 7.1 Introduction; 7.2 A general measurement set-up; 7.3 Preparation of the test structure; 7.4 Selection of excitation forces; 7.5 Different estimates of an FRF and effects of noise; 7.6 Two incompletenesses of measured data; 7.7 Initial assessment of measured FRF data; Chapter 8. Modal analysis methods - frequency domain; 8.1 Introduction; 8.2 Detection of vibration modes from measured FRF data 8.3 Derivation of modal data from FRF data - SDoF methods |
| Record Nr. | UNINA-9910820006203321 |
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He Jimin
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| Oxford ; ; Boston, : Butterworth-Heinemann, 2001 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Modal analysis [e-book] / Jimin He and Zhi-Fang Fu
| Modal analysis [e-book] / Jimin He and Zhi-Fang Fu |
| Autore | He, Jimin |
| Pubbl/distr/stampa | Oxford ; Boston : Butterworth-Heinemann, 2001 |
| Descrizione fisica | xiii, 291 p. : ill. ; 25 cm |
| Disciplina | 624.1 |
| Altri autori (Persone) | Fu, Zhi-Fangauthor |
| Soggetto topico | Modal analysis |
| Soggetto genere / forma | Electronic books. |
| ISBN |
9780750650793
0750650796 |
| Formato | Risorse elettroniche  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Overview of Modal Analysis * Essential Mathematics for Modal Analysis * Basic Vibration Theory * Modal Analysis of a SDOF System * Modal Analysis of an Undamped MDOF System * Modal Analysis of a Damped MDOF System * Frequency Response Function Measurements * Initial Assessment of Measured FRF Data * Modal Analysis Methods - Frequency Domain * Experimental Modal Analysis - Time Domain * Local Structural Modification * Applications of Modal Analysis I * Applications of Modal Analysis II |
| Record Nr. | UNISALENTO-991003236809707536 |
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He, Jimin
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| Oxford ; Boston : Butterworth-Heinemann, 2001 | ||
| Risorse elettroniche | ||
| Lo trovi qui: Univ. del Salento | ||
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Modal analysis : the international journal of analytical and experimental modal analysis
| Modal analysis : the international journal of analytical and experimental modal analysis |
| Pubbl/distr/stampa | Blacksburg, VA, : Scholarly Communications Project, Virginia Polytechnic Institute & State University, c1993-1996 |
| Descrizione fisica | 1 online resource |
| Disciplina | 620.1/04 |
| Soggetto topico | Modal analysis |
| Soggetto genere / forma | Periodicals. |
| Formato | Materiale a stampa |
| Livello bibliografico | Periodico |
| Lingua di pubblicazione | eng |
| Record Nr. | UNISA-996290142303316 |
| Blacksburg, VA, : Scholarly Communications Project, Virginia Polytechnic Institute & State University, c1993-1996 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
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Modal analysis : the international journal of analytical and experimental modal analysis
| Modal analysis : the international journal of analytical and experimental modal analysis |
| Pubbl/distr/stampa | Blacksburg, VA, : Scholarly Communications Project, Virginia Polytechnic Institute & State University, c1993-1996 |
| Descrizione fisica | 1 online resource |
| Disciplina | 620.1/04 |
| Soggetto topico | Modal analysis |
| Soggetto genere / forma | Periodicals. |
| Formato | Materiale a stampa |
| Livello bibliografico | Periodico |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910142363503321 |
| Blacksburg, VA, : Scholarly Communications Project, Virginia Polytechnic Institute & State University, c1993-1996 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Modal testing : a practitioner's guide / / Peter Avitabile
| Modal testing : a practitioner's guide / / Peter Avitabile |
| Autore | Avitabile Peter <1952-> |
| Pubbl/distr/stampa | Hoboken, New Jersey ; ; Chichester, West Sussex, England : , : Wiley, , 2018 |
| Descrizione fisica | 1 online resource (547 pages) : illustrations (some color) |
| Disciplina | 624.171 |
| Collana | THEi Wiley ebooks |
| Soggetto topico | Modal analysis |
| ISBN |
1-119-22295-8
1-5231-1846-6 1-119-22294-X 1-119-22298-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Introduction to experimental modal analysis : a simple non-mathematical presentation -- Theory related to experimental modal analysis -- Digital signal processing for experimental modal testing -- Excitation techniques : impact and shaker excitation -- Modal parameter estimation techniques -- Test setup considerations -- Impact testing considerations -- Shaker testing considerations -- Estimating modal parameters -- General considerations -- Tips, tricks and assorted information including checklists for testing. |
| Record Nr. | UNINA-9910270860603321 |
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Avitabile Peter <1952->
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| Hoboken, New Jersey ; ; Chichester, West Sussex, England : , : Wiley, , 2018 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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