10th International Conference on Vibrations in Rotating Machinery : 11-13 September 2012, IMechE, London
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10th International Conference on Vibrations in Rotating Machinery : 11-13 September 2012, IMechE, London
Woodhead, 2012
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Includes bibliographical references and author index
内容説明・目次
内容説明
This book presents the papers from the 10th International Conference on Vibrations in Rotating Machinery. This conference, first held in 1976, has defined and redefined the state-of-the-art in the many aspects of vibration encountered in rotating machinery. Distinguished by an excellent mix of industrial and academic participation achieved, these papers present the latest methods of theoretical, experimental and computational rotordynamics, alongside the current issues of concern in the further development of rotating machines. Topics are aimed at propelling forward the standards of excellence in the design and operation of rotating machines.
目次
Keynote Addresses
Chapter 1: Modelling, dynamic behaviour and diagnostics of cracked rotors
ABSTRACT
1 INTRODUCTION
2 CRACK BREATHING MECHANISM
3 CRACK PROPAGATION AND SHAPE
4 IDENTIFICATION OF CRACKS IN ROTORS
5 CONCLUSIONS
Chapter 2: Model based signal processing in Smart rotating machines
ABSTRACT
1 INTRODUCTION
2 Detecting Traveling Wave Direction -Multiple Sensors
3 ORDER TRACKING WITH MULTIPLE SENSORS
4 ASYMMETRY AND DEFECT DETECTION IN ROTATING ELEMENTS
5 SUMMARY
Rotordynamics
Chapter 3: A full size rotor dynamic test rig for whole engine mechanics of aero engines
ABSTRACT
1 INTRODUCTION
2 ENGINEERING DESIGN OF THE SIMULATOR
3 SIMULATION TECHNIQUES
4 PROTOTYPE VALIDATION
5 Conclusion
Chapter 4: Dynamic analysis of a harmonically excited on-board rotor-bearing system
ABSTRACT
1 INTRODUCTION
2 ANALYTICAL MODELING OF AN ON-BOARD ROTOR-BEARING SYSTEM
3 NUMERICAL EXAMPLES AND DISCUSSION
4 CONCLUSIONS
Chapter 5: Vibration analysis of a shafting system for a marine diesel generator set including dynamic characteristics between shell and housing of generator bearing
ABSTRACT
1 INTRODUCTION
2 DESCRIPTION OF ROTOR SYSTEM FOR MARINE DIESEL GENERATOR SET
3 MODELLING FOR ROTORDYNAMIC ANALYSIS
4 COMPARISON OF EXPERIMENT RESULTS AND COMPUTATIONAL CALCULATION RESULTS
5 EFFECT OF GAP BETWEEN BEARING SHELL AND HOUSING
6 Conclusions
Chapter 6: An investigation into the dynamic response of a squeeze-film damped twin-shaft test rig
ABSTRACT
1 INTRODUCTION
2 TEST RIG
3 OVERVIEW OF COMPUTATIONAL METHODS
4 DISCUSSION OF RESULTS
5 CONCLUSIONS
Chapter 7: Identification of foundations in rotating machinery using modal parameters
ABSTRACT
2 INTRODUCTION
3 THEORY
4 NUMERICAL EXPERIMENTS
5 RESULTS AND DISCUSSION
6 SUMMARY OF CONCLUSIONS
Chapter 8: On the determination of bearing support pedestal conditions using shaker testing
ABSTRACT
INTRODUCTION
SHAKER TESTING PROCESS
EXAMPLE 1: LP TURBINE SYSTEM WITH VINTAGE SHRUNK-ON DISC DESIGN
HOW TO ASSESS THE ACCEPTABILITY OF THE MEASURED FREQUENCIES
BEARING SUPPORT STIFFNESS EVALUATION
MEASUREMENT ERRORS
STATIC AND DYNAMIC BEARING PEDESTAL STIFFNESS DEFINITION
ROTOR DYNAMIC MODELS FOR RIGID SUPPORTS
ROTOR DYNAMIC MODELS WITH OIL-FILM AND BEARING SUPPORT CHARACTERISTICS
EXAMPLE 2: ANOTHER VINTAGE DESIGN OF LP TURBINE SYSTEM
IDENTIFICATION OF RELATIVE STRENGTHS OF SIMILAR PEDESTAL STRUCTURES BY SHAKER TESTING
RESULTS AND DISCUSSIONS
CONCLUSIONS AND RECOMMENDATIONS
ACKNOWLEDGEMENTS
Chapter 9: Axial and radial dynamics of rotors on electrodynamic bearings
ABSTRACT
1 INTRODUCTION
2 RADIAL EDB MODELLING
3 AXIAL EDB MODELLING
4 UNIFIED MODELLING
5 CONCLUSIONS
Chapter 10: Model based design of a rotor supported by radial electrodynamic bearings
ABSTRACT
1 INTRODUCTION
2 TEST RIG DESIGN
3 EXPERIMENTAL VALIDATION
4 CONCLUSIONS
Cracks
Chapter 11: Acoustic emission for the detection of subsurface cracking in bearing condition monitoring
ABSTRACT
1 INTRODUCTION
2 EQUIPMENT AND TEST COMPONENTS
3 DATA ACQUISITION AND HANDLING
4 RESULTS
5 DISCUSSION
6 CONCLUSIONS
Chapter 12: Finite element vibration analysis of a rotating shaft system with an open crack by the harmonic excitation
ABSTRACT
1 INTRODUCTION
2 SHAFT WITH AN OPEN CRACK
3 FINITE ELEMENT MODEL OF THE SHAFT WITH AN OPEN CRACK
4 ANALYSIS OF FORCED VIBRATION BY HARMONIC EXCITATION
5 EXPERIMENTAL SYSTEM
6 COMPARISON WITH THE EXPERIMENT
7 CONCLUSION
8 ACKNOWLEDGEMENT
Chapter 13: On the effects of transverse annular cracks in rotating machines
ABSTRACT
1 INTRODUCTION
2 CASE STUDY
3 CRACK PERIODIC CLOSURE
4 VALIDATION OF THE THEORETICAL RESULTS
5 CONCLUSIONS
Blades
Chapter 14: 3D Blade root shape optimization
ABSTRACT
1 INTRODUCTION
2 BASE LINE BLADE MODEL
3 SHAPE VARIABLES
4 DESIGN OF EXPERIMENTS (DOE)
5 APPROXIMATION MODELS
6 OPTIMIZATION
7 CONCLUSION
8 ACKNOWLEDGEMENTS
Chapter 15: Analysis of LP steam turbine blade vibrations: experimental results and numerical simulations
ABSTRACT
1 INTRODUCTION
2 DESCRIPTION OF THE BLADE ROW
3 IN-FIELD RESULTS
4 NEW LAST STAGE BLADE DESIGN
5 MEASUREMENT RESULTS
6 CONCLUSIONS
7 ACKNOWLEDGEMENTS
Chapter 16: Semi-automatic mode naming methodology to classify impeller mode families
ABSTRACT
1 INTRODUCTION
2 METHODOLOGY
3 EXAMPLE OF APPLICATION
4 CONCLUSIONS
5 ACKNOWLEDGEMENTS
Chapter 17: A method for establishing the uncertainty levels for aero-engine blade tip amplitudes extracted from blade tip timing data
ABSTRACT
1 INTRODUCTION
2 BTT DATA PROCESSING
3 BTT UNCERTAINTY EXTRACTION METHOD
4 DISCUSSION
5 CONCLUSIONS
Chapter 18: Non-contact methods of sensing vibrations of turbine blades
ABSTRACT
1 THE CONCEPT OF THE BLADE VIBRATION MONITORING SYSTEM
2 NON-CONTACT SENSORS OF BLADE VIBRATIONS AND DISPLACEMENTS
3 MAGNETOELECTRIC SENSORS
4 CONCLUSIONS
5 ACKNOWLEDGEMENTS
Chapter 19: Estimation of turbomachinery blade vibrations from tip-timing data
ABSTRACT
1 INTRODUCTION TO TIP-TIMING MEASURING TECHNIQUE
2 MINIMUM VARIANCE SPECTRAL ESTIMATOR (MVSE), PRINCIPLE AND LIMITS
3 ADDITIONAL METHODS EXPLORED
4 IMPLEMENTATION OF ADDITIONAL METHODS ON A NUMERICAL EXAMPLE
5 REAL TEST CASE APPLICATION
6 CONCLUSIONS
Chapter 20: FSI-based forced response analyses of a mistuned high pressure compressor blisk
ABSTRACT
1 INTRODUCTION
2 THEORY
3 NUMERICAL STUDY
4 RESULTS
5 CONCLUSION
6 ACKNOWLEDGEMENTS
Chapter 21: The problem of complex shape tracking in a Campbell Diagram or how to overcome crossing/veering phenomena
ABSTRACT
1 INTRODUCTION
2 BACKGROUND EQUATIONS
3 A NEW CRITERION FOR ROTOR MODE SHAPE TRACKING
4 INDUSTRIAL APPLICATION
5 OVERCOMING VEERING/CROSSING PHENOMENA
6 CONCLUSION
Chapter 22: On the comparison of possibilistic and probabilistic methods for the determination of the worst-case response of mistuned bladed disks
ABSTRACT
1 INTRODUCTION
2 METHODOLOGY
3 NUMERICAL EXAMPLES
4 RESULTS AND DISCUSSIONS
5 CONCLUSIONS
Chapter 23: Forced response prediction of a mistuned bladed disk in the presence of aeroelastic coupling and model uncertainties
ABSTRACT
1 INTRODUCTION
2 THEORETICAL BACKGROUND
3 FORCED RESPONSE
4 SENSITIVITY ANALYSIS
5 CONCLUSION
6 ACKNOWLEDGEMENTS
Chapter 24: Inter-slip damping of twisted blades in opposed bundles under rotation
ABSTRACT
1 INTRODUCTION
2 FE MODEL OF TRIPLE-BLADE-BUNDLE WITH FRICTION COUPLINGS
3 NUMERICAL RESULTS OF FORCED RESONANT VIBRATION
4 MODEL ANALYSIS OF A SINGLE BLADE
5 DESCRIPTION OF DYNAMIC TESTS UNDER ROTATION
6 RESULTS
7 CONCLUSIONS
8 ACKNOWLEDGEMENTS
Chapter 25: An improved simulation method for blade-casing interaction phenomena
ABSTRACT
1 INTRODUCTION
2 CORRECTION TO CONTACT MODEL
3 RESULTS FOR A REAL BLADE MODEL
4 STUDY OF A SIMPLIFIED 2DOF BLADE MODEL
5 CONCLUSIONS AND FURTHER WORK
6 ACKNOWLEDGEMENTS
Chapter 26: Simulation of the dynamic behaviour of a group of blades with friction contacts
ABSTRACT
1 INTRODUCTION
2 THE MODEL
3 FEATURES OF THE TEST RIG
4 NON-LINEAR STATIC BEHAVIOUR
5 LINEAR DYNAMIC BEHAVIOUR WITH FRICTIONLESS CONTACT
6 NON-LINEAR DYNAMIC BEHAVIOUR WITH FRICTION CONTACT
7 CONCLUSIONS
8 ACKNOWLEDGEMENTS
Chapter 27: Vibration characteristics of a continuous cover blade structure with friction contact surfaces of a steam turbine
ABSTRACT
1 INTRODUCTION
2 ANALYSIS METHOD
3 RESULTS AND DISCUSSION
4 CONCLUSION
Rotordynamics Balancing
Chapter 28: An extended field balancing procedure for flexible rotors fully levitated by active magnetic bearings
ABSTRACT
1 INTRODUCTION
2 IDENTIFICATION PROCEDURE FOR RESIDUAL UNBALANCES
3 NUMERICAL MODEL OF THE ROTOR-AMB SYSTEM
4 NUMERICAL BENCHMARK OF PROPOSED BALANCING PROCEDURE
5 EXPERIMENTAL VERIFICATION
6 CONCLUSIONS
ACKNOWLEDGEMENTS
Chapter 29: Convergence on unbalance identification process based on genetic algorithm applied to rotating machinery
ABSTRACT
1 INTRODUCTION
2 METHODOLOGY
3 RESULTS AND DISCUSSION
4 CONCLUSION
5 ACKNOWLEDGEMENTS
Chapter 30: Observer design for rotating shafts excited by unbalance
ABSTRACT
1 INTRODUCTION
2 MODELLING AND CONTROLLER DESIGN
3 THEORY
4 APPLICATION TO A ROTOR TEST RIG MODEL
5 CONCLUSION
ACKNOWLEDGEMENT
Chapter 31: Use of modal weight sets for residual modal unbalance assessment of high speed balance quality of flexible rotors
ABSTRACT
1 INTRODUCTION
2 METHOD OF RMU EVALUATION WITH MODAL WEIGHT SETS
3 COMPARISON OF RMU VALUES OBTAINED WITH MODAL WEIGHT SETS AND IN SINGLE PLANES FOR FACTORY FINAL BALANCE VIBRATION LIMITS
4 RMU VALUES OBTAINED WITH MODAL WEIGHT SETS FOR FACTORY FINAL BALANCE VIBRATION LIMITS
5 CONCLUSION
Ambs and Control
Chapter 32: Experimental assessment of a new fuzzy controller applied to a flexible rotor supported by Active Magnetic Bearings
ABSTRACT
1 INTRODUCTION
2 EXPERIMENTAL APPARATUS
3 DETAILED MODEL
4 CONTROL STRATEGIES
5 EXPERIMENTAL RESULTS
6 CONCLUSIONS
Chapter 33: Self identification algorithm for the autonomous control of rotating systems
ABSTRACT
1 INTRODUCTION
2 THE D-DECOMPOSITION APPLIED TO PD CONTROLLERS
3 THE SELF-IDENTIFICATION ALGORITHM
4 TEST APPARATUS
5 EXPERIMENTAL RESULTS
6 CONCLUSION
7 ACKNOWLEDGEMENT
Chapter 34: Numerical and experimental identification of the static characteristics of a combined Journal-Magnetic bearing: Smart Integrated Bearing
ABSTRACT
1 NOMENCLATURE
2 INTRODUCTION
3 MAGNETIC ACTUATOR MODELING
4 EXPERIMENTAL SET-UP
5 RESULTS
6 CONCLUSIONS
7 ACKNOWLEDGMENTS
Chapter 35: Investigation of the vibration reduction of a flexibly supported Jeffcott rotor damped by semiactive elements working on the principle of squeezing thin layers of normal and magnetorheological oils
ABSTRACT
1 INTRODUCTION
2 THE PROPOSED DAMPING ELEMENT AND ITS MATHEMATICAL MODELLING
3 THE EQUATION OF MOTION OF THE STUDIED ROTOR SYSTEM
4 RESULTS OF THE COMPUTATIONAL SIMULATIONS
5 CONCLUSIONS
6 ACKNOWLEDGEMENT
Chapter 36: Modeling, design and control of a flexible rotor supported by active magnetic bearings
ABSTRACT
1 INTRODUCTION
2 CMODELING AND EIGENVALUE ANALYSIS OF A FLEXIBLE ROTOR SYSTEM
3 CONFIGURATION OF THE TEST RIG
4 ROTORDYNAMIC ANALYSIS
5 EXPERIMENTAL VERIFICATION
6 CONCLUSION
Chapter 37: Nonlinear vibration analysis of a rotating shaft supported by a repulsive magnetic bearing and vibration suppression using the axial control
ABSTRACT
1 INTRODUCTION
2 MAGNETIC FORCE OF THE REPULSIVE MAGNETIC BEARING
3 THEORETICAL MODEL
4 THEORETICAL ANALYSIS
5 VIBRATION SUPPRESSION USING THE AXIAL DISPLACEMENT CONTROL OF THE MAGNET
6 EXPERIMENT
7 CONCLUSION
Dampers and Seals
Chapter 38: Rotors supported by elastomer-ring-dampers aEURO" experimental and numerical investigations
ABSTRACT
1 INTRODUCTION
2 ELASTOMER BEHAVIOUR
3 OPTIMISED SHIFT PROCESS
4 TEST ROTOR
5 CONCLUSION
Chapter 39: Experimental techniques for determining rotordynamic coefficients of gas seals: results for short staggered labyrinth seals and comparison with CFD
ABSTRACT
1 INTRODUCTION
2 EXPERIMENTAL SETUP AND TEST PROCEDURE
3 RESULTS AND DISCUSSION
4 CONCLUSIONS
5 ACKNOWLEDGEMENTS
Chapter 40: Analysis of rotordynamic forces for high inlet pre-swirl rate labyrinth seals
ABSTRACT
1 INTRODUCTION
2 RECENT 3-D NUMERICAL PREDICTION
3 THE FIRST AND SECOND-ORDER MODELS
4 ROTORDYNAMIC ANALYSIS OF LABYRINTH SEALS
5 CONCLUSIONS
Bearings
Chapter 41: Investigation of the influence of thermal effects in the dynamic coefficients of a tilting pad journal bearing
ABSTRACT
1 INTRODUCTION
2 METHODOLOGY
3 RESULTS AND DISCUSSION
4 CONCLUSION
5 ACKNOWLEDGEMENTS
Chapter 42: Train lateral analysis of an offshore gas compressor train experiencing high unbalance sensitivity
ABSTRACT
1 INTRODUCTION
2 MODELING ASPECTS
3 ANALYSIS RESULTS
4 CONCLUSIONS AND RECOMMENDATIONS
Chapter 43: Investigation on the damping characteristics of elastohydrodynamic lubricated point contacts under dynamic loading
ABSTRACT
1 INTRODUCTION
2 THEORATICAL DEVELOPMENT
3 EHD DAMPING CHARACTERIZATION
4 REAL BEARING APPLICATION
5 CONCLUSIONS
6 ACKNOWLEDGEMENT
Chapter 44: Local linear approximation for the stiffness characteristics of elastohydrodynamic point contacts
ABSTRACT
1 INTRODUCTION
2 THEORETICAL MODEL
3 STIFFNESS APPROXIMATION RESULTS
4 CONCLUSION
Chapter 45: Experimental results of a novel tilting pad bearing operating in a small high speed turbocharger
Abstract
1 Introduction
2 Background
3 Description of the Engine Test Stand
4 Results and Discussion
5 Conclusions
6 Acknowledgments
Chapter 46: Analysis of the influence of hydrodynamic bearings with geometric discontinuities on the dynamic response of a rotating system
Abstract
1 Introduction
2 Methodology
3 Results and Discussion
4 Conclusion
5 Acknowledgements
Chapter 47: Analysis of the sensitivity to non-linear effects in the oil-film forces of journal bearings
ABSTRACT
1 INTRODUCTION
2 BEARING MODEL
3 SENSITIVITY ANALYSIS
4 CONCLUSIONS
Chapter 48: Analysis of the influence of force and moment dynamic coefficients on lubricated thrust bearings
ABSTRACT
1 INTRODUCTION
2 METHODOLOGY
3 RESULTS AND DISCUSSION
4 CONCLUSION
5 ACKNOWLEDGEMENTS
Rub, Whirl, Instability
Chapter 49: Dynamic instability of a rotor-bearing system with two asymmetric disks
ABSTRACT
1 INTRODUCTION
2 FE MODELING OF ROTOR-BEARING SYSTEM WITH TWO ASYMMETRICAL DISKS
3 DYNAMIC INSTABILITY ANALYSIS
4 COMPUTATIONS AND DISCUSSIONS
5 CONCLUSIONS
Chapter 50: Non-linear fluid bearing stability analysis in large high-speed motors and generators
ABSTRACT
1 INTRODUCTION
2 THEORY
3 APPLICATIONS AND RESULTS
4 SIMULATION OF FIELD VIBRATION
CONCLUSION
Chapter 51: Unique analytical model improves understanding of violent dynamic behaviour of advanced oilfield rotary steerable drilling systems
ABSTRACT
1 INTRODUCTION
2 THEORY
3 APPLICATION
4 RESULTS
5 IMPROVEMENTS
6 CONCLUSION
Chapter 52: Novel detection system improves understanding of backwards whirl and aids parameter optimization for advanced oilfield Rotary Steerable Drilling Systems
ABSTRACT
1 INTRODUCTION
2 STATEMENT OF THEORY AND DEFINITIONS
3 DESCRIPTION AND APPLICATION OF EQUIPMENT AND PROCESSES
4 PRESENTATION OF DATA AND RESULTS
5 CASE STUDIES
6 CONCLUSIONS
Chapter 53: Effect of contact parameter uncertainties of the dynamic behaviour of rubbing cyclic assemblies
ABSTRACT
1 INTRODUCTION
2 THEORETICAL DEVELOPMENTS
3 APPLICATION
4 CONCLUSION
Chapter 54: An analysis of rotor-stator interaction
ABSTRACT
1 INTRODUCTION
2 SDOF WITH TWO STOP-ENDS
3 THREE-DISKS ROTOR WITH ONE CONTACT
4 CONCLUSION
5 ACKOWLEDGEMENTS
Chapter 55: Dynamical analysis of a gyroscopic exercise tool considering collision and slide between the rotor and the case
ABSTRACT
1 INTRODUCTION
2 THEORETICAL MODEL
3 MOTION PATTERNS WITH PRECESSION
4 CONCLUSION
Chapter 56: Stability and bifurcation analysis of a flexible rotor-bearing system by numerical continuation
ABSTRACT
1 INTRODUCTION
2 NONLINEAR DYNAMIC MODEL OF A SYMMETRICAL FLEXIBLE ROTOR
3 BIFURCATION ANALYSIS BY NUMERICAL CONTINUATION
4 RESULTS
5 CONCLUSION
Condition Monitoring
Chapter 57: JSME v_BASE activities and some troubleshooting case studies of rotating machinery
ABSTRACT
1 INTRODUCTION
2 JSME v_BASE COMMITTEE
3 FORMAT OF CASE STUDY REPORT
4 CASE STUDIES (FORCED VIBRATION)
5 CASE STUDIES (SELF-EXCITED VIBRATION)
6 DISCUSSION
7 CONCLUSIONS
8 ACKNOWLEDGEMENTS
Chapter 58: Condition monitoring of rotating machines using on-shaft vibration measurement
ABSTRACT
1 INTRODUCTION
2 TEST RIG
3 PROPOSED METHOD FOR FAULTS CLASSIFICATION
4 FAULTS SIMULATION AND EXPERIMENTS
5 DATA ANALYSIS AND RESULTS
6 CONCLUSION
Chapter 59: Neural network based diagnosis of mechanical faults in IC engines
ABSTRACT
1 INTRODUCTION
2 SIGNAL PROCESSING AND FEATURE EXTRACTION
3 FEATURE SELECTION
4 BUILDING OF THE ANNS
5 RESULTS OF THE ANNS
6 CONCLUSION
ACKNOWLEDGEMENTS
Diagnostics and Faults - Fault Detection
Chapter 60: Anomaly detection of rolling elements using fuzzy entropy and similarity measures
ABSTRACT
1 INTRODUCTION
2 FUZZY ENTROPY AND SIMILARITY MEASURE
3 FEATURE EXTRACTION AND COMPUTATION
4 EXPERIMENTAL RESULTS AND DISCUSSION
5 CONCLUDING REMARKS AND FUTURE WORKS
Chapter 61: Fault identification of rolling element bearings from vibration signals: an application of Kalman and Haz Filters
ABSTRACT
1 INTRODUCTION
2 ANALYSIS
3 RESULTS AND DISCUSSION
4 CONCLUSION
Chapter 62: Identification of multiple fault parameters in a flexible rotor-bearing-coupling system based on forced responses
ABSTRACT
1 INTRODUCTION
2 MODEL DESCRIPTION AND IDENTIFICATION ALGORITHM
3 DEVELOPMENT OF IDENTIFICATION ALGORITHM
4 RESULTS AND DISCUSSIONS
5 CONCLUSION
APPENDIX A COUPLING MATRICES
Chapter 63: Compensating for speed variation by order tracking with and without a tacho signal
ABSTRACT
1 INTRODUCTION
2 PHASE DEMODULATION AND ANGULAR RESAMPLING
3 COMPENSATING FOR SPEED VARIATIONS
4 IMPROVEMENT BY FURTHER ITERATION
5 CONCLUSION
Electrical Machines
Chapter 64: FEM-based vibration analysis of a soft mounted two-pole induction motor regarding electromagnetic excitation due to static rotor eccentricity
ABSTRACT
1 INTRODUCTION
2 ELECTROMAGNETIC FORCES
3 DATA OF THE ANALYZED MOTOR
4 FINITE ELEMENT MODEL
5 NATURAL VIBRATION ANALYSIS
6 FORCED VIBRATION ANALYSIS
6.1 Boundary conditions
6.2 Relative shaft displacements in the sleeve bearing housings
6.3 Bearing housing vibrations
6.4 Evaluation of the vibration behavior
7 CONCLUSION
Chapter 65: Analytical-computational approach to dynamic investigation of the electro-mechanical coupling effects in the rotating systems driven by asynchronous motors
ABSTRACT
1 INTRODUCTION
2 MODELLING OF THE ELECTROMECHANICAL SYSTEM
3 SOLUTION OF THE PROBLEM
4 COMPUTATIONAL EXAMPLES
5 FINAL REMARKS
Chapter 66: Modeling two-pole cage induction machine equipped with embedded force actuator
ABSTRACT
1 INTRODUCTION
2 MACHINE TO BE MODELED
3 DERIVING THE MODEL
4 FREQUENCY RESPONSE
5 MEASUREMENT TECHNIQUES
6 RESULTS
7 CONCLUSIONS
ACKNOWLEDGMENT
Chapter 67: Microvibration modelling and testing of a satellite reaction wheel assembly
ABSTRACT
1 INTRODUCTION
2 RWA MODELLING
3 RWA DISTURBANCE TEST
4 MODAL VALIDATION
5 CONCLUSION
6. ACKNOWLEDGEMENT
Torsional Vibration
Chapter 68: Torsional vibration of machines with gear errors
ABSTRACT
1 INTRODUCTION
2 MODELLING THE GEAR SYSTEM
3 SIMULATED EXAMPLE
4 CONCLUSIONS
ACKNOWLEDGEMENTS
Chapter 69: Calculations of lateral-torsional coupled vibration in AC motor-driven geared rotor system with mode synthesis approach
ABSTRACT
1 INTRODUCTION
2 ROTOR SYSTEM AND DYNAMICS OF ROTOR MODEL
3 RESULTS OF CALCULATION
4 CONCLUSIONS
Chapter 70: Efficient approach for encoder geometry compensation in time interval measurement of torsional vibration
ABSTRACT
1 INTRODUCTION
2 TIM PROCEDURE DESCRIPTION
3 ENCODER GEOMETRY CHARACTERIZATION AND CORRECTION
4 TORSIONAL VIBRATION MEASUREMENT SYSTEM
5 EXPERIMENTAL STUDY
6 CONCLUSIONS
Chapter 71: Electro-mechanical interaction in the torsional dynamics of LNG compression trains with LCI variable speed drive
ABSTRACT
1 TURBOMACHINERY TORSIONAL ANALYSIS
1.1 Modal analysis and Reduced Modal Model
1.2 Open-Loop Analysis vs. Closed-Loop Analysis
2 POWER ELECTRONICS AND VARIABLE SPEED DRIVES
2.1 ElectroMechanical Interaction in a system with a Variable Speed Drive
2.2 Harmonics and Interharmonics in a 12 pulse converter
3 CLOSED LOOP ELECTROMECHANICAL MODEL
4 VALIDATION OF THE MODEL
4.2 Constant Torque Set Point
4.3 Change in Torque Set Point
CONCLUSIONS AND NEXT STEPS
Author Index
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