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Record Nr. |
UNINA9910812233303321 |
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Titolo |
Mechanical vibrations [[electronic resource] ] : types, testing and analysis / / Amy L. Galloway, editor |
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Pubbl/distr/stampa |
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Hauppauge, N.Y., : Nova Science Publishers, c2011 |
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ISBN |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (426 p.) |
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Collana |
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Mechanical engineering theory and applications |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Intro -- MECHANICAL VIBRATIONS: TYPES, TESTING AND ANALYSIS -- MECHANICAL VIBRATIONS: TYPES, TESTING AND ANALYSIS -- CONTENTS -- PREFACE -- Chapter 1 METHODS FOR RESEARCH OF STATES AND CONTROL OF VIBRATION OF NONCONSERVATIVE SYSTEMS -- 1. General Formulation of the Problem and the Method of Studying Auto-Oscillatory Modes of the Systems Being Deformed -- 1.1. The General Equations of Motion of the Viscoelastic Bodies -- 1.2. Formulation of the Problem about the Auto-Oscillations of Viscoelastic Bodies -- 1.3. Deriving the Problem of Body's Agitated Motion to the Operator Equation -- 1.4. Determination of the Critical Parameters of Viscoelastic Systems -- 1.5. Calculation of Self-Oscillatory Regimes by Lyapunov - Schmidt Method -- 1.6. Analysis of the Auto-Oscillations Stability -- 1.7. Approximation of Viscoelastic Systems Distributed by the Parameter Systems with Finite Number of Degrees of Freedom -- 2. Research of Auto-Oscillations by Mechanic Systems -- 2.1. Research of Auto-Oscillations of Mechanical System «Cutter-Support» -- Conclusions -- 2.2. Research of High-Rise Buildings Auto-Oscillations Flowed Round by Air Current -- Conclusions -- 3. Optimal Control of Nonconservative System Vibration -- Conclusions -- 4. Examples of the Mechanical Systems Control -- 4.1. Robot-Manipulator Based on Pantograph Mechanism -- Conclusions -- 4.2. Industrial Robot-Manipulator -- 4.3. Passive-Active Control System for High-Rise Structures -- Conclusions -- References -- Chapter 2 SPECTRUM AND OPERATIONAL MODAL ANALYSIS WITH VECTOR AUTOREGRESSIVE |
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MODELS -- Abstract -- 1. Introduction -- 2. Vector Autoregressive Model and Parameters Estimation -- 3. Model Updating in Time -- 4. Model Order Updating -- 4.1. Updating with Ascending Model Order -- 4.2. Updating with Decreasing Model Order -- 5. Selection of Model Order. |
5.1. Definition of the New Noise-Rate Order Factor -- 5.2. Determination of Minimum Required Model Order -- 5.3. Selection of Computational Model Order and Noise Rate Estimation -- 6. Modal Parameters Identification and a New Omac Formulation -- 7. Uncertainty of Modal Parameters -- 8. Identification of Structural Modes -- 9. Construction of the Noise Free Spectrum -- 10. Experimental Applications -- 11. Conclusion -- Acknowledgment -- References -- Chapter 3 VIBRATION ANALYSIS OF PIECEWISE AND CONTINUOUSLY AXIALLY GRADED RODS AND BEAMS -- Abstract -- 1. Introduction -- 2. In-Homogeneous Rods -- 2.1. Newton Method -- 2.2. Virtuel Displacement Principles -- 2.3. Piecewise Axially Graded Rods -- 2.3.1. Governing equations for piecewise axially graded rods -- 2.3.2. Numerical results for pagr -- 2.3.3. Mode shapes -- 2.4. Continuously Axially Graded Rods -- 2.4.1. Continuously axially graded rods-analytical solutions -- 2.4.2. Ritz method -- 3. Axially Graded Beams -- 3.1. Newton Method -- 3.2. Virtuel Displacement Principles -- 3.3. Piecewise Axially Graded Beams -- 3.3.1. Governing equations for piecewise axially graded beams -- 3.3.2. Numerical results for pagb -- 3.4. Continuously Axially Graded Beams -- 3.4.1. Ritz method -- 4. Conclusion -- References -- Chapter 4 PARAMETER ESTIMATION OF PRE- DESTRUCTION STATE OF THE STEEL FRAME CONSTRUCTIONS USING FINITE ELEMENT AND VIBRODIAGNOSTIC METHODS -- Abstract -- 1. Introduction -- 2. Harmonically and Modal Analysis for Determination of the Pre-Destruction Parameters for the Triangular Geometry Model of the Framework -- 2.1. Model of the Element Braced Framework Construction for Analysis -- 2.2. Finite Element Analyses -- 2.3. Results of the Modal Analysis -- 3. Experimental Studies of the Physical Model -- Conclusion -- Acknowledgments -- Abbreviations -- References. |
Chapter 5 WHOLE BODY VIBRATION TRAINING: CHARACTERIZATION AND ANALYSIS -- I. Introduction -- II. Production and Delivery of Vibration -- III. Vibration characterization -- Magnitude of Vibration -- Acceleration -- Local Acceleration -- Muscle Oscillation and EMG Artifacts -- Nomenclature Recommendation -- IV. Human Response to Whole Body Vibration -- Tonic Vibration Reflex -- The Muscle Tuning Hypothesis -- Acute and Chronic Effects of Vibrations -- Acute Effects -- Chronic Effects -- Hormonal Response -- Conclusions -- References -- Chapter 6 ELECTROMECHANICAL UNSTATIONARY THICKNESS VIBRATIONS OF PIEZOCERAMIC TRANSFORMERS AT ELECTRIC EXCITATION -- Abstract -- Introduction -- 1. Statement of Problem -- 2. Determination of Own Frequencies of Piezoceramic Layers with the Curved Surfaces -- 3. Numerical Method of the Decision -- 4. The Dynamic Electromechanical State of Flat Piezoceramic Layer at Electric Excitation -- 5. Research of Dynamic Behavior of Hollow Piezoceramic Cylinder at Electric Excitation -- 6. Unstationary Vibrations of Hollow Piezoceramic Ball at Excitation by Electric Potential -- Conclusion -- References -- Chapter 7 CORRECTIONS FOR POISSON EFFECT IN LONGITUDINAL VIBRATIONS AND SHEARING DEFORMATIONS IN TRANSVERSE VIBRATIONS APPLIED TO A PRISMATIC ORTHOTROPIC BODY -- Abstract -- Introduction -- Effect of Lateral Motion on Free Longitudinal Vibrations in Orthotropic Bars -- Physical Sound Synthesis Models Applied to Flexural Vibrations of Orthotropic Bars -- Conclusion -- References -- Chapter 8 STUDY |
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OF VIBRATORY PHENOMENA DURING MECHANICAL GRAPE HARVESTING: METHODOLOGY OF SIGNAL MEASUREMENT AND ANALYSIS -- Abstract -- Introduction -- Materials -- Theoretical Considerations and Methodology -- Data Analysis -- Conclusion -- References -- Chapter 9 A MODIFIED FOURIER SERIES METHOD FOR THE DYNAMIC ANALYSIS OF STRUCTURES. |
Abstract -- Introduction -- A Modified Fourier Series Method for Solving Boundary Value Problems -- Vibrations of Beams with General Boundary Conditions -- Vibrations of Two Arbitrarily Coupled Beams -- Vibrations of Multi-Span Beams -- Extending the Modified Fourier Series Method to 2-D Structural Components - Plates with Arbitrary Boundary Conditions -- Dynamic Analysis of Complex Structures -- Conclusion -- Appendix A: Expressions of H, Q, S and Z Matrices -- Acknowledgments -- References -- Chapter 10 UTILITY OF MECHANICAL VIBRATION METHOD FOR STUDYING PHYSICAL PROPERTIES OF SOLID MATERIALS -- Abstract -- I. Introduction -- II. Preliminary -- Abstract -- A. Elasticity -- B. Mechanical Vibration -- III. Previous Research -- Abstract -- A. Internal Friction of Lead -- B. Internal Friction of Quartz -- C. Internal Friction of Crystals under Pressure -- D. Internal Friction of Solid Helium -- E. Melting of Helium Crystal -- F. Melting of Ice Crystal -- G. Internal Friction in Normal-Conducting Aluminum -- H. Internal Friction in Superconducting Aluminum -- I. Higher-Order Elastic Constants -- J. Sound-Sound Interaction -- K. Nonlinear Elasticity in Whiskers -- IV. Recent Research -- Abstract -- A. Viscosity of Inorganic and Organic Glasses -- f~0 Hz -- B. Internal Friction of Polystyrene -- f=0.001~10 Hz -- C. Internal Friction of Various Metallic Glasses -- f~1 Hz -- D. Internal Friction of Metallic Glass -- f~1 Hz -- E. Internal Friction of Metallic Glass -- f=0.2~25 Hz -- F. Acoustic Measurements in Polystyrene -- f = 5 MHz, 10 GHz -- References -- Chapter 11 ON MECHANICAL VIBRATION CONTROL USING VISCOELASTIC SURFACE TREATMENTS -- Abstract -- 1. Introduction -- 2. Theoretical Review -- 2.1. Material Models -- 2.1.1. Differential models -- 2.1.2. Hereditary models -- 2.1.3. Fractional derivative models -- 2.2. Experimental Techniques. |
2.2.1. Free vibration tests -- 2.2.2. Forced vibration tests without resonance -- 2.2.3. Forced vibration tests with resonance -- 2.3. Homogenised Models -- 2.3.1. FLD models -- 2.3.1. CLD models -- 2.4. Numerical Models and Methods -- 2.4.1. Introduction -- 2.4.2. Damping models for structural systems -- Classical Damping -- GHM and ADF Models -- Non-Viscous Damping -- 2.4.3. The complex eigenvalue problem -- 3. Examples of Applications -- 3.1. Study on FLD Beams -- 3.1.1. Experimental characterisation of the damping material -- 3.1.2. Simulation of the transient response of a FLD beam -- 3.1.3. Frequency analysis of a FLD beam -- 3.2. Study on a CLD Automobile Tailgate -- 3.2.1. Experimental characterisation of the sandwich material -- 3.2.2. Study of a practical application -- 4. Conclusion -- Acknowledgments -- References -- INDEX -- Blank Page. |
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