Mechanical vibrations : theory and practice

Mechanical Vibrations is an unequaled combination of conventional vibration techniques along with analysis, design, computation and testing. Emphasis is given on solving vibration related issues and failures in industry.

Detalles Bibliográficos
Otros Autores:	Bhave, Shrikant Author (author)
Formato:	Libro electrónico
Idioma:	Inglés
Publicado:	[Place of publication not identified] Pearson 2010
Edición:	1st edition
Materias:	Chemical & Materials Engineering Engineering & Applied Sciences Materials Science
Ver en Biblioteca Universitat Ramon Llull:	https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009627894906719

Tabla de Contenidos:

Cover
Contents
Foreword
Preface
Chapter 1: Fundamentals of Vibration Analysis
1.1 Introduction
1.1.1 Definition of Vibration of Different Forms
1.1.2 Classifications of Vibrations Experienced in Actual Practice
1.1.3 Parameters of Vibration Waveform
1.1.4 Why Do We Need Mathematical Modelling?
1.2 Practical Aspects of Vibration Analysis
1.2.1 Step 1: Mathematical Modelling
1.2.2 Step 2: Derivation of Governing Equations
1.2.3 Step 3: Solution of Governing Equations
1.2.4 Step 4: Interpretation of Results
Conclusion
Chapter 2: Single Degree-of-Freedom Vibration Systems
2.1 Definition of Degrees-of-Freedom
2.2 Single Degree-of-Freedom System
2.2.1 Rigid-Body Oscillations
2.2.2 Spring−Mass−Damper Systems
2.3 Equation of Motion for Singledegree-of-Freedom System (SDOF)
2.3.1 Free Vibrations of Single Degree-of-Freedom System-Viscous Damping
2.3.2 Free Vibrations of Single Degree-of-Freedom System-Coulomb and Hysteretic Damping
2.4 Forced Vibrations of Single Degree-of-Freedomsystem to Harmonic Excitation Force
2.4.1 Response of an Undamped System to Harmonic Excitation Force
2.4.2 Response of a Damped System Under Harmonic Force
2.4.3 Mechanical-Impedance Method
2.4.4 Forced Vibrations with Coulomb Damping
2.4.5 Forced Vibration with Hysteretic Damping
2.4.6 Response of SDOF Systems Subjected to a General Periodic Force
Conclusion
Exercises
Chapter 3: Two Degrees-of-Freedom Systems
3.1 Equations of Motion
3.1.1 Analysis of Free Vibrations of an Undamped System
3.1.2 Lagrange's Equations
3.2 Analysis of Free Vibrations of Damped Systems
3.2.1 Orthogonality Principle
3.3 Semi-Definite System
3.4 Forced Vibration of Two Degrees-of-Freedom System
3.4.1 Tuned Absorber
Conclusion
Exercises.
Chapter 4: Multi Degrees-of-Freedom Systems
4.1 Introduction
4.2 Modelling of Continuous Systems
4.3 Equations of Motion for Multidegrees-of-Freedom Systems
4.3.1 Using Newton's Second Law of Motion
4.3.2 Influence Coefficients
4.4 Generalized Coordinates
4.5 Energies in Vibrating Systems
4.5.1 Use of Lagrange's Equation
4.6 Eigen Value Problem
4.7 Orthogonality of Normal Modes
4.8 Modal Analysis
4.9 Determination of Natural Frequencies and Mode Shapes
4.9.1 Method of Matrices and Matrix Iteration
4.9.2 Holzer Method
4.9.3 Stodola Method
4.9.4 Dunkerley's Method
4.9.5 Rayleigh's Method
4.9.6 Mechanical-Impedance Method
Conclusion
Exercises
Chapter 5: Torsional Vibrations
5.1 Introduction
5.2 Torsional Vibration Systems
5.2.1 Single Degree-of-Freedom System
5.3 Two Degrees-of-Freedom Torsional Systems (Free Unclamped)
5.4 Geared Systems
5.5 Multi Degrees-of-Freedom Systems
5.5.1 Semi-Definite Systems
5.5.2 One End Fixed, Other End Free and Both Ends Fixed
Conclusion
Exercises
Chapter 6: Transverse Vibrations
6.1 Introduction
6.2 Lateral Vibrations of Beams
6.2.1 Free Vibrations
6.2.2 Orthogonality of Normal Functions
6.2.3 Forced Vibrations
6.3 Rayleigh's Method
6.4 Rayleigh-RITZ Method
6.5 Whirling of Rotating Shafts
6.5.1 Equations of Motion
6.5.2 Critical Speeds
6.5.3 Balancing
Conclusion
Exercises
Chapter 7: Vibration Diagnosisand Control
7.1 Introduction
7.2 Sensing and Measurements
7.2.1 General Considerations
7.2.2 Important Terminologies in Vibration/Noise Measurements and Band-Pass Filter
7.2.3 Vibration Pick-Ups
7.3 Vibration Nomographs and Vibration Criterion
7.4 Vibration Analysis
7.4.1 Phase Measurement
7.4.2 General-Purpose Vibration Analyser
7.4.3 Tape Recorders.
7.4.4 Real-Time Analysers
7.4.5 Remote Sensing
7.5 Data Reduction and Processing
7.5.1 Vibration Amplitude Versus Frequency Analysis
7.5.2 Spectrum Averaging
7.5.3 Amplitude Versus Frequency Versus Time Analysis
7.5.4 Amplitude/Phase Versus rpm Analysis
7.5.5 Time Waveform Analysis
7.5.6 Lissajous Pattern (Orbit) Analysis
7.5.7 Mode-Shape Analysis
7.6 Diagnosis and Corrective Actions
7.6.1 Steady-State Operating Regime
7.6.2 Detection of Perturbation Forces and Corrective Actions
7.7 Modal Analysis
7.8 Vibration Control
Conclusion
Exercises
Chapter 8: Finite Element Method
8.1 Introduction
8.2 Important Conditions to be Satisfied
8.3 Modelling
8.4 Shape Functions
8.5 Bar Element
8.6 Boundary Conditions
8.7 Torsion Element
8.8 Beam Element
Matlab-Tool for Computation
Introduction
(I) Display Windows
(II) Arithmetic Operations
(III) Built-in Functions
(IV) Matrix
(V) Polynomials:
(VI) System of Linear Equations
Conclusion
Exercises
Chapter 9: Fundamentals of Experimental Modal Analysis
9.1 Introduction
9.2 Frequency-Response Function
9.2.1 Frequency-Response Function-Basic Principles
Exercises
Chapter 10: Miscellaneous Topics in Vibration Analysis and Introduction to Noise Analysis
10.1 Flow-Induced Vibrations
10.2 Acoustics and Analysis of Noise
10.2.1 Basics of Sound
10.2.2 Amplitude, Frequency, Wavelength, and Velocity
10.2.3 Sound Field Definitions
10.3 Non-Stationary (Unsteady) Vibrations
10.4 Rotor Dynamics and Hydrodynamic Bearings
Exercises
Appendix - A
Appendix - B
Appendix - C
Appendix - D
Index.

Mechanical vibrations : theory and practice

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