Vibration Engineering and Technology of Machinery, Volume II : Select Proceedings of VETOMAC XVI 2021

• Autore: Tiwari Rajiv
• Pubblicazione: Singapore : , : Springer Singapore Pte. Limited, , 2024; ©2024
• Edizione: 1st ed.
• Descrizione fisica: 1 online resource (577 pages)
• Disciplina: 620.3
• Altri autori: Ram MohanY. S DarpeAshish K KumarV. Arun TiwariMayank
• Nota di contenuto: Intro -- Committee -- Preface -- Contents -- About the Editors -- Delamination Damage Detection in a Composite Beam Using Discrete Wavelet Transform -- 1 Introduction -- 2 Theoretical Study -- 2.1 Discrete Wavelet Transform -- 2.2 Signal to Noise Ratio -- 3 Modeling of the Delamination Damaged Multi-layered Composite Beam -- 4 Simulation Results and Discussions -- 4.1 Wavelet-Based Delamination Detection -- 5 Conclusions -- References -- Effect of Input Torque on the Modulation Sidebands of Planetary Gears in a Wind Turbine Gearbox Under Gravity Excitations -- 1 Introduction -- 2 Modeling of Planetary Gear with Gravity Excitation -- 3 Numerical Simulations -- 4 Results and Discussion -- 4.1 Case 1: In-Phased Mesh Design (Zr = 100, Zs = 28, N = 4) -- 4.2 Case 2: Sequentially Phased Mesh Design (Zr = 100, Zs = 20, N = 3) -- 5 Conclusions -- References -- Stochastic Identification of Damped Beams Using Frequency Response Function Data -- 1 Introduction -- 2 Theory -- 3 Numerical Study on a Cantilever Beam -- 3.1 Case I: Low Damping -- 3.2 Case II: Medium Damping -- 3.3 Case III: Higher Damping -- 4 Comparisons of Results Obtained for Various Damping Levels -- 5 Experimental Study -- 6 Conclusions -- References -- Study of Vibration and Wear Debris Damage Detection Methods for Mild Wear in Spur Gear System -- 1 Introduction -- 1.1 Experimental Methodology -- 1.2 Vibration Diagnostics Parameters -- 2 Results and Discussion -- 3 Conclusions -- References -- Transient Rotor Dynamics Behaviour of Shrink-Fitted Overhung Rotor -- 1 Introduction -- 2 Methodology -- 2.1 Shrink Fit Analysis -- 2.2 Numerical Model of Overhung Rotor -- 3 Result and Discussion -- 4 Conclusion -- References -- Fault Diagnosis of Gear with Multiple Defects in Planetary Gearbox -- 1 Introduction -- 2 Dynamic Simulation -- 2.1 Mathematical Modelling of Planetary Gearbox. ; 2.2 Time-Varying Gear Mesh Stiffness Modelling -- 2.3 Numerical Analysis and Modelling of Transfer Path -- 3 Results and Discussion -- 4 Fault Diagnosis Using Difference Signals -- 5 Conclusions -- References -- Vibration Analysis of Turbine Blade Using Finite Element Method -- 1 Introduction -- 2 Methodology -- 3 Hybrid Coordinate System -- 4 Modelling by Timoshenko Beam Theory -- 5 Modelling Pre-twisted Timoshenko Beam -- 5.1 Differential Equations of Movement -- 6 Tapered Beam -- 7 Finite Element Analysis -- 7.1 Flapwise Motion -- 7.2 Chordwise Motion -- 7.3 Tapered Euler Bernoulli Beam -- 7.4 Pre-twisted Timoshenko Beam -- 8 Design and Comparison of Theoretical Beam Models with 3D Turbo Machinery Blade Model -- 8.1 Finite Element Modelling -- 9 Numerical Details -- 9.1 Aspect Ratio Study for 3D Designed Blade -- 10 Results and Discusssion -- 11 Scope for Work in Future -- References -- Analytical Prediction of the Jet Force in Pelton Turbine -- 1 Introduction -- 2 Mathematical Modelling -- 2.1 Assumptions -- 2.2 Maximum Number of Pelton Buckets -- 2.3 Interaction Between Jet and Pelton Wheel -- 2.4 Expression for the Normal Jet Force -- 2.5 Expression for the Area of Impinging Jet -- 2.6 Expression for Normal Forces for Different Bucket Positions -- 2.7 Components of Normal Force -- 2.8 Fourier Series Representation -- 3 Results and Discussion -- 3.1 Preliminary Calculations for the Runner Buckets Assembly -- 3.2 Force Distribution in the Buckets and System -- 3.3 Fourier Series Representation of Jet Force -- 4 Conclusion -- References -- Intelligent Fault Detection Scheme for Rolling Bearing Based on Generative Adversarial Network and AutoEncoders Using Convolutional Neural Network -- 1 Introduction -- 2 Background Knowledge -- 2.1 Stacked AutoEncoder -- 2.2 Wasserstein GAN -- 2.3 Kullback-Leibler Divergence (KLD). ; 2.4 Normalized Cross Correlation (NCC) -- 3 Experimental Facilities -- 3.1 Analysis of Vibration Responses -- 4 Experimental Validation -- 4.1 Comparison Study -- 4.2 Classification Using DCNN -- 5 Conclusions -- 6 Declaration of Conflicting Interest -- References -- Sparse Frequency Representation Using Autocorrelation of Variational Mode Functions to Detect Compound Fault in Rotating Machines -- 1 Introduction -- 2 Theoretical Background -- 2.1 Variational Mode Decomposition -- 2.2 Autocorrelation and Correlation Coefficient -- 2.3 Sparsity Analysis -- 3 Simulation Study -- 4 Experimental Analysis -- 5 Conclusion -- References -- Estimation of Theoretical and Experimental Natural Frequencies of Rotating Shafts -- 1 Introduction -- 2 Equations of Motion -- 3 Theoretical Calculations -- 4 Experimental Procedures -- 5 Result and Discussion -- 5.1 Theoretical Values -- 5.2 Experimental Facility -- 5.3 Numerical Validation -- 6 Conclusion -- References -- Steady-State Nonlinear Forced Vibrational Response of Laminated Sectorial Plates -- 1 Introduction -- 2 Formulation and Methodology -- 3 Results and Discussion -- 4 Conclusion -- References -- Data Driven Modeling and Control of Delivery Drone -- 1 Introduction -- 2 Nonlinear Dynamic Model of Delivery Drone -- 3 Physics-Based Model and Controller -- 3.1 Linearized Dynamic Model -- 3.2 LQR Controller Synthesis and Analysis -- 4 Data Driven Modeling -- 4.1 Artificial Neural Network -- 4.2 Data Driven Model of Delivery Drone -- 5 Data Driven Model and PID Controller -- 6 Conclusions -- References -- Fault Diagnosis in a Motor Under Variable Speed Conditions: A Survey -- 1 Introduction -- 2 Types and Root Causes of Failure -- 2.1 Bearing Fault -- 2.2 Stator Fault -- 2.3 Rotor Fault -- 2.4 Eccentricity Fault -- 3 Fault Frequency Components for Different Fault Conditions -- 4 Fault Diagnosis Techniques. ; 4.1 Fault Diagnosis Techniques Under Steady State Condition -- 4.2 Fault Diagnosis Techniques Under Variable Speed Condition -- 5 Conclusions -- References -- Stability of Cage in Bearings of Reaction Wheels for Satellite Application: A Critical Review -- 1 Introduction -- 2 Literature Review -- 2.1 Instability in Rotor Supported on Roller Bearing -- 2.2 Cage Instabilities in Bearing -- 2.3 Cage Instabilities in Bearings of Reaction Wheel of Satellite -- 2.4 Fault Analysis and Active Control in Roller Element Bearing -- 3 Results and Discussion -- 3.1 Challenge in Numerical Modelling and Experimental Rig -- 3.2 Challenges in Micro-vibration Suppression -- 3.3 Challenges in Fault Detection in Different Parts of Bearings -- 3.4 Challenges in Use of AMBs -- References -- Fatigue Life Estimation of Pelton Turbine Using Local Strain Approach -- 1 Introduction -- 2 Damage Description -- 3 Numerical Details -- 3.1 Geometry -- 3.2 Finite Element Analysis -- 3.3 Material Properties -- 3.4 Boundary Conditions -- 3.5 Fatigue Life Estimation -- 4 Result and Discussion -- 4.1 ε-N Curve for 13Cr-4Ni SS (R = -1) -- 4.2 Computational Fluid Dynamic Analysis -- 4.3 Stress Analysis -- 4.4 ε-N Curve for Pulsating Loading (R = 0) -- 5 Conclusion -- References -- Rotor Crack Depth Estimation Using Recurrence Quantification Analysis -- 1 Introduction -- 2 Equations of Motion of Rotor -- 3 Recurrence Quantification Analysis (RQA) -- 4 Regression Using ANN -- 5 Discussion -- 6 Conclusion -- 7 Units -- References -- Identification of Dominant Source of Vibration in Geared Rotors Using Full-Spectrum Analysis -- 1 Introduction -- 2 Gear Mesh Transverse Vibration Problem -- 3 Geared Rotor Governing Equations -- 4 Numerical Simulation -- 5 Analysis of Variation -- 6 Conclusions -- References -- Influence of Geometric Parameters on the Dynamic Performance of Spiral Bevel Gear. ; 1 Introduction -- 2 Methodology -- 2.1 Equations of Motion -- 2.2 Critical Speeds, Mode Shapes and Unbalance Response -- 3 Numerical Model Details -- 3.1 Effect on Dynamic Characteristics Under Rigid Boundary Conditions -- 3.2 Effects on Dynamic Characteristics for Flexible Boundary Conditions -- 4 Conclusion -- References -- Finite Element Modelling and Dynamic Stability Analysis of a Functionally Graded Rotor Shaft-Bearing System -- 1 Introduction -- 2 Model of FG Shaft with Material Properties -- 3 FG Rotor System-FE Modelling -- 3.1 System Dynamic Formulations with Damping -- 3.2 Forces in Bearing -- 4 Numerical Simulation -- 5 Results and Discussions -- 6 Conclusions -- References -- Moment Independent Sensitivity Analysis of Porous Functionally Graded Plates Subjected to Free Vibrations -- 1 Introduction -- 2 Mathematical Formulations -- 2.1 Low-Frequency Free Vibration Analysis -- 2.2 Moment Independent Sensitivity Analysis -- 3 Results and Discussion -- 4 Conclusions -- References -- Effect of Misalignment in a Geared-Rotor System Integrated with Active Magnetic Bearings -- 1 Introduction -- 2 Experiment Details -- 2.1 Experimental Setup -- 2.2 Experimental Analysis -- 3 Results and Discussion -- 3.1 Time-Domain Displacement Response -- 3.2 Orbit Plots -- 3.3 Full Spectrum Response -- 4 Conclusions -- References -- Coupled Vibration Suppression and Energy Harvesting System from Laminated Composite Structure -- 1 Introduction -- 2 Mathematical Modelling -- 3 Methodology -- 4 Results and Discussion -- 4.1 Model 1 -- 4.2 Model 2 -- 4.3 Model 3 -- 4.4 Parametric Studies -- 4.5 Model 4 -- 4.6 Parametric Studies -- 5 Conclusion -- References -- Development of Flexible Rotor Balancing Procedure Using Response Matching Technique -- 1 Introduction -- 2 Rotor Bearing System Model -- 3 Methodology -- 3.1 Response Matching -- 3.2 Balancing Method. ; 4 Experimental Test Setup.
• Titolo autorizzato: Vibration Engineering and Technology of Machinery, Volume II
• ISBN: 981-9989-86-8
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910847077603321
• Lo trovi qui: Univ. Federico II
• Serie: Mechanisms and Machine Science Series