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.
1. Cover image - p. Cover 2. Title page - p. Cover 3. Table of Contents - p. Cover 4. Copyright - p. Cover 5. Keynote Addresses - p. iv 6. Chapter 1: Modelling, dynamic behaviour and diagnostics of cracked rotors - p. iv 7. Chapter 2: Model based signal processing in Smart rotating machines - p. 24 8. Rotordynamics - p. 44 9. Chapter 3: A full size rotor dynamic test rig for whole engine mechanics of aero engines - p. 44 10. Chapter 4: Dynamic analysis of a harmonically excited on-board rotor-bearing system - p. 55 11. Chapter 5: Vibration analysis of a shafting system for a marine diesel generator set including dynamic characteristics between shell and housing of generator bearing - p. 57 12. Chapter 6: An investigation into the dynamic response of a squeeze-film damped twin-shaft test rig - p. 78 13. Chapter 7: Identification of foundations in rotating machinery using modal parameters - p. 88 14. Chapter 8: On the determination of bearing support pedestal conditions using shaker testing - p. 98 15. Chapter 9: Axial and radial dynamics of rotors on electrodynamic bearings - p. 111 16. Chapter 10: Model based design of a rotor supported by radial electrodynamic bearings - p. 122 17. Cracks - p. 132 18. Chapter 11: Acoustic emission for the detection of subsurface cracking in bearing condition monitoring - p. 132 19. Chapter 12: Finite element vibration analysis of a rotating shaft system with an open crack by the harmonic excitation - p. 146 20. Chapter 13: On the effects of transverse annular cracks in rotating machines - p. 157 21. Blades - p. 170 22. Chapter 14: 3D Blade root shape optimization - p. 170 23. Chapter 15: Analysis of LP steam turbine blade vibrations: experimental results and numerical simulations - p. 188 24. Chapter 16: Semi-automatic mode naming methodology to classify impeller mode families - p. 197 25. Chapter 17: A method for establishing the uncertainty levels for aero-engine blade tip amplitudes extracted from blade tip timing data - p. 210 26. Chapter 18: Non-contact methods of sensing vibrations of turbine blades - p. 220 27. Chapter 19: Estimation of turbomachinery blade vibrations from tip-timing data - p. 232 28. Chapter 20: FSI-based forced response analyses of a mistuned high pressure compressor blisk - p. 245 29. Chapter 21: The problem of complex shape tracking in a Campbell Diagram or how to overcome crossing/veering phenomena - p. 256 30. Chapter 22: On the comparison of possibilistic and probabilistic methods for the determination of the worst-case response of mistuned bladed disks - p. 266 31. Chapter 23: Forced response prediction of a mistuned bladed disk in the presence of aeroelastic coupling and model uncertainties - p. 279 32. Chapter 24: Inter-slip damping of twisted blades in opposed bundles under rotation - p. 291 33. Chapter 25: An improved simulation method for blade-casing interaction phenomena - p. 302 34. Chapter 26: Simulation of the dynamic behaviour of a group of blades with friction contacts - p. 303 35. Chapter 27: Vibration characteristics of a continuous cover blade structure with friction contact surfaces of a steam turbine - p. 321 36. Rotordynamics Balancing - p. 332 37. Chapter 28: An extended field balancing procedure for flexible rotors fully levitated by active magnetic bearings - p. 332 38. Chapter 29: Convergence on unbalance identification process based on genetic algorithm applied to rotating machinery - p. 345 39. Chapter 30: Observer design for rotating shafts excited by unbalance - p. 356 40. Chapter 31: Use of modal weight sets for residual modal unbalance assessment of high speed balance quality of flexible rotors - p. 357 41. Ambs and Control - p. 376 42. Chapter 32: Experimental assessment of a new fuzzy controller applied to a flexible rotor supported by Active Magnetic Bearings - p. 376 43. Chapter 33: Self identification algorithm for the autonomous control of rotating systems - p. 388 44. Chapter 34: Numerical and experimental identification of the static characteristics of a combined Journal-Magnetic bearing: Smart Integrated Bearing - p. 397 45. 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 - p. 407 46. Chapter 36: Modeling, design and control of a flexible rotor supported by active magnetic bearings - p. 418 47. Chapter 37: Nonlinear vibration analysis of a rotating shaft supported by a repulsive magnetic bearing and vibration suppression using the axial control - p. 426 48. Dampers and Seals - p. 439 49. Chapter 38: Rotors supported by elastomer-ring-dampers – experimental and numerical investigations - p. 439 50. Chapter 39: Experimental techniques for determining rotordynamic coefficients of gas seals: results for short staggered labyrinth seals and comparison with CFD - p. 453 51. Chapter 40: Analysis of rotordynamic forces for high inlet pre-swirl rate labyrinth seals - p. 466 52. Bearings - p. 476 53. Chapter 41: Investigation of the influence of thermal effects in the dynamic coefficients of a tilting pad journal bearing - p. 476 54. Chapter 42: Train lateral analysis of an offshore gas compressor train experiencing high unbalance sensitivity - p. 479 55. Chapter 43: Investigation on the damping characteristics of elastohydrodynamic lubricated point contacts under dynamic loading - p. 501 56. Chapter 44: Local linear approximation for the stiffness characteristics of elastohydrodynamic point contacts - p. 512 57. Chapter 45: Experimental results of a novel tilting pad bearing operating in a small high speed turbocharger - p. 523 58. Chapter 46: Analysis of the influence of hydrodynamic bearings with geometric discontinuities on the dynamic response of a rotating system - p. 534 59. Chapter 47: Analysis of the sensitivity to non-linear effects in the oil-film forces of journal bearings - p. 544 60. Chapter 48: Analysis of the influence of force and moment dynamic coefficients on lubricated thrust bearings - p. 556 61. Rub, Whirl, Instability - p. 566 62. Chapter 49: Dynamic instability of a rotor-bearing system with two asymmetric disks - p. 566 63. Chapter 50: Non-linear fluid bearing stability analysis in large high-speed motors and generators - p. 578 64. Chapter 51: Unique analytical model improves understanding of violent dynamic behaviour of advanced oilfield rotary steerable drilling systems - p. 590 65. Chapter 52: Novel detection system improves understanding of backwards whirl and aids parameter optimization for advanced oilfield Rotary Steerable Drilling Systems - p. 600 66. Chapter 53: Effect of contact parameter uncertainties of the dynamic behaviour of rubbing cyclic assemblies - p. 611 67. Chapter 54: An analysis of rotor-stator interaction - p. 622 68. Chapter 55: Dynamical analysis of a gyroscopic exercise tool considering collision and slide between the rotor and the case - p. 633 69. Chapter 56: Stability and bifurcation analysis of a flexible rotor-bearing system by numerical continuation - p. 645 70. Condition Monitoring - p. 656 71. Chapter 57: JSME v_BASE activities and some troubleshooting case studies of rotating machinery - p. 656 72. Chapter 58: Condition monitoring of rotating machines using on-shaft vibration measurement - p. 667 73. Chapter 59: Neural network based diagnosis of mechanical faults in IC engines - p. 678 74. Diagnostics and Faults - Fault Detection - p. 690 75. Chapter 60: Anomaly detection of rolling elements using fuzzy entropy and similarity measures - p. 690 76. Chapter 61: Fault identification of rolling element bearings from vibration signals: an application of Kalman and H∞ Filters - p. 693 77. Chapter 62: Identification of multiple fault parameters in a flexible rotor-bearing-coupling system based on forced responses - p. 713 78. Chapter 63: Compensating for speed variation by order tracking with and without a tacho signal - p. 725 79. Electrical Machines - p. 737 80. Chapter 64: FEM-based vibration analysis of a soft mounted two-pole induction motor regarding electromagnetic excitation due to static rotor eccentricity - p. 737 81. Chapter 65: Analytical-computational approach to dynamic investigation of the electro-mechanical coupling effects in the rotating systems driven by asynchronous motors - p. 751 82. Chapter 66: Modeling two-pole cage induction machine equipped with embedded force actuator - p. 763 83. Chapter 67: Microvibration modelling and testing of a satellite reaction wheel assembly - p. 774 84. Torsional Vibration - p. 785 85. Chapter 68: Torsional vibration of machines with gear errors - p. 785 86. Chapter 69: Calculations of lateral-torsional coupled vibration in AC motor-driven geared rotor system with mode synthesis approach - p. 798 87. Chapter 70: Efficient approach for encoder geometry compensation in time interval measurement of torsional vibration - p. 808 88. Chapter 71: Electro-mechanical interaction in the torsional dynamics of LNG compression trains with LCI variable speed drive - p. 818 89. Author Index - p. 828
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.
1. Cover image - p. Cover 2. Title page - p. Cover 3. Table of Contents - p. Cover 4. Copyright - p. Cover 5. Keynote Addresses - p. iv 6. Chapter 1: Modelling, dynamic behaviour and diagnostics of cracked rotors - p. iv 7. Chapter 2: Model based signal processing in Smart rotating machines - p. 24 8. Rotordynamics - p. 44 9. Chapter 3: A full size rotor dynamic test rig for whole engine mechanics of aero engines - p. 44 10. Chapter 4: Dynamic analysis of a harmonically excited on-board rotor-bearing system - p. 55 11. Chapter 5: Vibration analysis of a shafting system for a marine diesel generator set including dynamic characteristics between shell and housing of generator bearing - p. 57 12. Chapter 6: An investigation into the dynamic response of a squeeze-film damped twin-shaft test rig - p. 78 13. Chapter 7: Identification of foundations in rotating machinery using modal parameters - p. 88 14. Chapter 8: On the determination of bearing support pedestal conditions using shaker testing - p. 98 15. Chapter 9: Axial and radial dynamics of rotors on electrodynamic bearings - p. 111 16. Chapter 10: Model based design of a rotor supported by radial electrodynamic bearings - p. 122 17. Cracks - p. 132 18. Chapter 11: Acoustic emission for the detection of subsurface cracking in bearing condition monitoring - p. 132 19. Chapter 12: Finite element vibration analysis of a rotating shaft system with an open crack by the harmonic excitation - p. 146 20. Chapter 13: On the effects of transverse annular cracks in rotating machines - p. 157 21. Blades - p. 170 22. Chapter 14: 3D Blade root shape optimization - p. 170 23. Chapter 15: Analysis of LP steam turbine blade vibrations: experimental results and numerical simulations - p. 188 24. Chapter 16: Semi-automatic mode naming methodology to classify impeller mode families - p. 197 25. Chapter 17: A method for establishing the uncertainty levels for aero-engine blade tip amplitudes extracted from blade tip timing data - p. 210 26. Chapter 18: Non-contact methods of sensing vibrations of turbine blades - p. 220 27. Chapter 19: Estimation of turbomachinery blade vibrations from tip-timing data - p. 232 28. Chapter 20: FSI-based forced response analyses of a mistuned high pressure compressor blisk - p. 245 29. Chapter 21: The problem of complex shape tracking in a Campbell Diagram or how to overcome crossing/veering phenomena - p. 256 30. Chapter 22: On the comparison of possibilistic and probabilistic methods for the determination of the worst-case response of mistuned bladed disks - p. 266 31. Chapter 23: Forced response prediction of a mistuned bladed disk in the presence of aeroelastic coupling and model uncertainties - p. 279 32. Chapter 24: Inter-slip damping of twisted blades in opposed bundles under rotation - p. 291 33. Chapter 25: An improved simulation method for blade-casing interaction phenomena - p. 302 34. Chapter 26: Simulation of the dynamic behaviour of a group of blades with friction contacts - p. 303 35. Chapter 27: Vibration characteristics of a continuous cover blade structure with friction contact surfaces of a steam turbine - p. 321 36. Rotordynamics Balancing - p. 332 37. Chapter 28: An extended field balancing procedure for flexible rotors fully levitated by active magnetic bearings - p. 332 38. Chapter 29: Convergence on unbalance identification process based on genetic algorithm applied to rotating machinery - p. 345 39. Chapter 30: Observer design for rotating shafts excited by unbalance - p. 356 40. Chapter 31: Use of modal weight sets for residual modal unbalance assessment of high speed balance quality of flexible rotors - p. 357 41. Ambs and Control - p. 376 42. Chapter 32: Experimental assessment of a new fuzzy controller applied to a flexible rotor supported by Active Magnetic Bearings - p. 376 43. Chapter 33: Self identification algorithm for the autonomous control of rotating systems - p. 388 44. Chapter 34: Numerical and experimental identification of the static characteristics of a combined Journal-Magnetic bearing: Smart Integrated Bearing - p. 397 45. 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 - p. 407 46. Chapter 36: Modeling, design and control of a flexible rotor supported by active magnetic bearings - p. 418 47. Chapter 37: Nonlinear vibration analysis of a rotating shaft supported by a repulsive magnetic bearing and vibration suppression using the axial control - p. 426 48. Dampers and Seals - p. 439 49. Chapter 38: Rotors supported by elastomer-ring-dampers – experimental and numerical investigations - p. 439 50. Chapter 39: Experimental techniques for determining rotordynamic coefficients of gas seals: results for short staggered labyrinth seals and comparison with CFD - p. 453 51. Chapter 40: Analysis of rotordynamic forces for high inlet pre-swirl rate labyrinth seals - p. 466 52. Bearings - p. 476 53. Chapter 41: Investigation of the influence of thermal effects in the dynamic coefficients of a tilting pad journal bearing - p. 476 54. Chapter 42: Train lateral analysis of an offshore gas compressor train experiencing high unbalance sensitivity - p. 479 55. Chapter 43: Investigation on the damping characteristics of elastohydrodynamic lubricated point contacts under dynamic loading - p. 501 56. Chapter 44: Local linear approximation for the stiffness characteristics of elastohydrodynamic point contacts - p. 512 57. Chapter 45: Experimental results of a novel tilting pad bearing operating in a small high speed turbocharger - p. 523 58. Chapter 46: Analysis of the influence of hydrodynamic bearings with geometric discontinuities on the dynamic response of a rotating system - p. 534 59. Chapter 47: Analysis of the sensitivity to non-linear effects in the oil-film forces of journal bearings - p. 544 60. Chapter 48: Analysis of the influence of force and moment dynamic coefficients on lubricated thrust bearings - p. 556 61. Rub, Whirl, Instability - p. 566 62. Chapter 49: Dynamic instability of a rotor-bearing system with two asymmetric disks - p. 566 63. Chapter 50: Non-linear fluid bearing stability analysis in large high-speed motors and generators - p. 578 64. Chapter 51: Unique analytical model improves understanding of violent dynamic behaviour of advanced oilfield rotary steerable drilling systems - p. 590 65. Chapter 52: Novel detection system improves understanding of backwards whirl and aids parameter optimization for advanced oilfield Rotary Steerable Drilling Systems - p. 600 66. Chapter 53: Effect of contact parameter uncertainties of the dynamic behaviour of rubbing cyclic assemblies - p. 611 67. Chapter 54: An analysis of rotor-stator interaction - p. 622 68. Chapter 55: Dynamical analysis of a gyroscopic exercise tool considering collision and slide between the rotor and the case - p. 633 69. Chapter 56: Stability and bifurcation analysis of a flexible rotor-bearing system by numerical continuation - p. 645 70. Condition Monitoring - p. 656 71. Chapter 57: JSME v_BASE activities and some troubleshooting case studies of rotating machinery - p. 656 72. Chapter 58: Condition monitoring of rotating machines using on-shaft vibration measurement - p. 667 73. Chapter 59: Neural network based diagnosis of mechanical faults in IC engines - p. 678 74. Diagnostics and Faults - Fault Detection - p. 690 75. Chapter 60: Anomaly detection of rolling elements using fuzzy entropy and similarity measures - p. 690 76. Chapter 61: Fault identification of rolling element bearings from vibration signals: an application of Kalman and H∞ Filters - p. 693 77. Chapter 62: Identification of multiple fault parameters in a flexible rotor-bearing-coupling system based on forced responses - p. 713 78. Chapter 63: Compensating for speed variation by order tracking with and without a tacho signal - p. 725 79. Electrical Machines - p. 737 80. Chapter 64: FEM-based vibration analysis of a soft mounted two-pole induction motor regarding electromagnetic excitation due to static rotor eccentricity - p. 737 81. Chapter 65: Analytical-computational approach to dynamic investigation of the electro-mechanical coupling effects in the rotating systems driven by asynchronous motors - p. 751 82. Chapter 66: Modeling two-pole cage induction machine equipped with embedded force actuator - p. 763 83. Chapter 67: Microvibration modelling and testing of a satellite reaction wheel assembly - p. 774 84. Torsional Vibration - p. 785 85. Chapter 68: Torsional vibration of machines with gear errors - p. 785 86. Chapter 69: Calculations of lateral-torsional coupled vibration in AC motor-driven geared rotor system with mode synthesis approach - p. 798 87. Chapter 70: Efficient approach for encoder geometry compensation in time interval measurement of torsional vibration - p. 808 88. Chapter 71: Electro-mechanical interaction in the torsional dynamics of LNG compression trains with LCI variable speed drive - p. 818 89. Author Index - p. 828
