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Proceedings Papers

Analytical Study of Dry Whip Phenomena During Rotor-Stator Rub

Aman K. Srivastava, Anurag Kumar, Mayank Tiwari, Akhilendra Singh
Proc. ASME. IDETC-CIE2021, Volume 10: 33rd Conference on Mechanical Vibration and Sound (VIB), V010T10A014, August 17–19, 2021
Publisher: American Society of Mechanical Engineers
Paper No: DETC2021-70228
https://doi.org/10.1115/DETC2021-70228
View Paper titled, Analytical Study of Dry Whip Phenomena During Rotor-Stator Rub
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Topics: Rotors, Stators
Proceedings Papers

Transient Response Technique Applied to Active Magnetic Bearing Machinery During Rotor Drop

Toshiyasu Ishii, R. Gordon Kirk
Proc. ASME. DETC91, 13th Biennial Conference on Mechanical Vibration and Noise: Rotating Machinery and Vehicle Dynamics, 191-199, September 22–25, 1991
Publisher: American Society of Mechanical Engineers
Paper No: DETC1991-0246
https://doi.org/10.1115/DETC1991-0246
View Paper titled, Transient Response Technique Applied to Active Magnetic Bearing Machinery During Rotor Drop
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Topics: Machinery, Magnetic bearings, Rotors, Transients (Dynamics), Bearings, Damping, Bearing design, Damage, Disks, Displacement
Proceedings Papers

Spontaneous Sidebanding in High Speed Rotordynamics

Fredric Ehrich
Proc. ASME. DETC91, 13th Biennial Conference on Mechanical Vibration and Noise: Rotating Machinery and Vehicle Dynamics, 25-33, September 22–25, 1991
Publisher: American Society of Mechanical Engineers
Paper No: DETC1991-0225
https://doi.org/10.1115/DETC1991-0225
View Paper titled, Spontaneous Sidebanding in High Speed Rotordynamics
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Topics: Aircraft, Computer simulation, Cycles, Gas turbines, Nonlinear systems, Rotordynamics, Rotors, Spectra (Spectroscopy), Springs, Stators
Proceedings Papers

A Comparison of Experimental Results and Theoretical Predictions for the Rotordynamic Coefficients of Short (L/D = 1/6) Labyrinth Seals

Joseph M. Pelletti, Dara W. Childs
Proc. ASME. DETC91, 13th Biennial Conference on Mechanical Vibration and Noise: Rotating Machinery and Vehicle Dynamics, 69-76, September 22–25, 1991
Publisher: American Society of Mechanical Engineers
Paper No: DETC1991-0231
https://doi.org/10.1115/DETC1991-0231
View Paper titled, A Comparison of Experimental Results and Theoretical Predictions for the Rotordynamic Coefficients of Short (L/D = 1/6) Labyrinth Seals
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Topics: Clearances (Engineering), Compressible flow, Damping, Fluid density, Fluids, Pressure, Rotors, Stators, Stiffness
Proceedings Papers

Observations of Subcritical Superharmonic and Chaotic Response in Rotordynamics

Fredric Ehrich
Proc. ASME. DETC91, 13th Biennial Conference on Mechanical Vibration and Noise: Rotating Machinery and Vehicle Dynamics, 1-9, September 22–25, 1991
Publisher: American Society of Mechanical Engineers
Paper No: DETC1991-0222
https://doi.org/10.1115/DETC1991-0222
View Paper titled, Observations of Subcritical Superharmonic and Chaotic Response in Rotordynamics
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Topics: Aircraft engines, Bifurcation, Clearances (Engineering), Computer simulation, Engines, Gas turbines, Mirrors, Nonlinear systems, Rotordynamics, Rotors
Proceedings Papers

Thermal/Mechanical Effect of Rotor-to-Stator Rubs in Rotating Machinery

Agnes Muszynska
Proc. ASME. DETC93, 14th Biennial Conference on Mechanical Vibration and Noise: Vibration of Rotating Systems, 1-6, September 19–22, 1993
Publisher: American Society of Mechanical Engineers
Paper No: DETC1993-0176
https://doi.org/10.1115/DETC1993-0176
View Paper titled, Thermal/Mechanical Effect of Rotor-to-Stator Rubs in Rotating Machinery
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Topics: Machinery, Mechanical properties, Rotors, Stators, Temperature effects, Oscillations, Vibration
Proceedings Papers

Effect of Straight Through Labyrinth Seals on Rotordynamics

John M. Vance, J. J. Zierer, Jr., E. M. Conway
Proc. ASME. DETC93, 14th Biennial Conference on Mechanical Vibration and Noise: Vibration of Rotating Systems, 159-171, September 19–22, 1993
Publisher: American Society of Mechanical Engineers
Paper No: DETC1993-0190
https://doi.org/10.1115/DETC1993-0190
View Paper titled, Effect of Straight Through Labyrinth Seals on Rotordynamics
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Topics: Blades, Clearances (Engineering), Computers, Damping, Dynamics (Mechanics), Engineering simulation, Flow (Dynamics), Pressure, Rotordynamics, Rotors
Proceedings Papers

Theory Versus Experiment for Short (L/D = 1/6) Honeycomb and Smooth Annular Pressure Seals

Dara W. Childs, George F. Kleynhans
Proc. ASME. DETC93, 14th Biennial Conference on Mechanical Vibration and Noise: Vibration of Rotating Systems, 173-179, September 19–22, 1993
Publisher: American Society of Mechanical Engineers
Paper No: DETC1993-0191
https://doi.org/10.1115/DETC1993-0191
View Paper titled, Theory Versus Experiment for Short (L/D = 1/6) Honeycomb and Smooth Annular Pressure Seals
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Topics: Honeycomb structures, Pressure, Leakage, Friction, Rotors, Clearances (Engineering), Computers, Flat plates, Flow (Dynamics), Pipes
Proceedings Papers

The Effect of Inlet Grooves and Swirl on the Dynamics of Long Annular Seals in Centrifugal Pumps

Mohamed Ismail, R. David Brown, David France
Proc. ASME. DETC93, 14th Biennial Conference on Mechanical Vibration and Noise: Vibration of Rotating Systems, 181-191, September 19–22, 1993
Publisher: American Society of Mechanical Engineers
Paper No: DETC1993-0192
https://doi.org/10.1115/DETC1993-0192
View Paper titled, The Effect of Inlet Grooves and Swirl on the Dynamics of Long Annular Seals in Centrifugal Pumps
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Topics: Centrifugal pumps, Dynamics (Mechanics), Stators, Excitation, Rolling bearings, Rotors, Water
Proceedings Papers

Chaotic Vibrations of Rotor/Bearing/Stator Systems With Looseness or Rubs

Agnes Muszynska, Paul Goldman
Proc. ASME. DETC93, 14th Biennial Conference on Mechanical Vibration and Noise: Nonlinear Vibrations, 187-194, September 19–22, 1993
Publisher: American Society of Mechanical Engineers
Paper No: DETC1993-0045
https://doi.org/10.1115/DETC1993-0045
View Paper titled, Chaotic Vibrations of Rotor/Bearing/Stator Systems With Looseness or Rubs
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Topics: Bearings, Rotors, Stators, Vibration, Computer simulation, Friction, Stiffness
Proceedings Papers

Characterization and Reduction of Reluctance Torque in Permanent Magnet D.C. Motors

Sangmoon Hwang, Dennis K. Lieu
Proc. ASME. DETC93, 14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems, 217-222, September 19–22, 1993
Publisher: American Society of Mechanical Engineers
Paper No: DETC1993-0237
https://doi.org/10.1115/DETC1993-0237
View Paper titled, Characterization and Reduction of Reluctance Torque in Permanent Magnet D.C. Motors
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Topics: Motors, Permanent magnets, Torque, Design, Magnetization, Stress, Vibration, Finite element methods, Fourier series, Magnetic fields
Proceedings Papers

Effects of the Electromagnetic Forces on Vibrational Behavior of the Laminated Mechanical Structure of Stator Cores

Cuneyt Ozturk
Proc. ASME. DETC95, Volume 3C: 15th Biennial Conference on Mechanical Vibration and Noise — Vibration Control, Analysis, and Identification, 869-878, September 17–20, 1995
Publisher: American Society of Mechanical Engineers
Paper No: DETC1995-0653
https://doi.org/10.1115/DETC1995-0653
View Paper titled, Effects of the Electromagnetic Forces on Vibrational Behavior of the Laminated Mechanical Structure of Stator Cores
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Topics: Electromagnetic force, Mechanical structures, Stators, Lamination, Noise (Sound), Plates (structures), Deformation, Electric motors, Excitation, Experimental methods
Proceedings Papers

Flexural Vibration of Turbine Generator Rotors: Application of Modal Analysis to Predictions of the Effects of Light Rubs

Terence S. Wilkinson
Proc. ASME. DETC95, Volume 3B: 15th Biennial Conference on Mechanical Vibration and Noise — Acoustics, Vibrations, and Rotating Machines, 1263-1269, September 17–20, 1995
Publisher: American Society of Mechanical Engineers
Paper No: DETC1995-0525
https://doi.org/10.1115/DETC1995-0525
View Paper titled, Flexural Vibration of Turbine Generator Rotors: Application of Modal Analysis to Predictions of the Effects of Light Rubs
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Topics: Modal analysis, Rotors, Turbogenerators, Vibration, Stators, Bearings, Turbines, Design, Friction, Journal bearings
Proceedings Papers

Modal Analysis of a Laminated Stator Core

M. Dias, Jr., H. I. Weber
Proc. ASME. DETC95, Volume 3B: 15th Biennial Conference on Mechanical Vibration and Noise — Acoustics, Vibrations, and Rotating Machines, 1361-1369, September 17–20, 1995
Publisher: American Society of Mechanical Engineers
Paper No: DETC1995-0536
https://doi.org/10.1115/DETC1995-0536
View Paper titled, Modal Analysis of a Laminated Stator Core
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Topics: Modal analysis, Stators, Acoustics, Excitation, Machinery, Noise (Sound), Vibration, Design, Generators, Modeling
Proceedings Papers

Magnetically Induced Vibration in an 8-Pole, 9-Slot Brushless DC Motor

Thomas Y. Chuang, Dennis K. Lieu
Proc. ASME. DETC95, Volume 3C: 15th Biennial Conference on Mechanical Vibration and Noise — Vibration Control, Analysis, and Identification, 545-552, September 17–20, 1995
Publisher: American Society of Mechanical Engineers
Paper No: DETC1995-0615
https://doi.org/10.1115/DETC1995-0615
View Paper titled, Magnetically Induced Vibration in an 8-Pole, 9-Slot Brushless DC Motor
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Topics: Engines, Motors, Poles (Building), Vibration, Geometry, Stators, Stress, Corners (Structural elements), Finite element analysis, Rotors
Proceedings Papers

Electromagnetically Generated Acoustic Noise in DC Machines

Sangmoon Hwang, Dennis K. Lieu
Proc. ASME. DETC95, Volume 3C: 15th Biennial Conference on Mechanical Vibration and Noise — Vibration Control, Analysis, and Identification, 561-570, September 17–20, 1995
Publisher: American Society of Mechanical Engineers
Paper No: DETC1995-0617
https://doi.org/10.1115/DETC1995-0617
View Paper titled, Electromagnetically Generated Acoustic Noise in DC Machines
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Topics: Acoustics, Machinery, Noise (Sound), Motors, Magnets, Stators, Eddies (Fluid dynamics), Eddy currents (Electricity), Electromagnetic fields, Electromagnetic force
Proceedings Papers

Stepper Motor Driven Four-Bar: Dynamic Modeling and Synthesis

Sern-Hong Wang, Albert P. Pisano
Proc. ASME. DETC-CIE96, Volume 3: 22nd Design Automation Conference, V003T03A049, August 18–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: 96-DETC/DAC-1605
https://doi.org/10.1115/96-DETC/DAC-1605
View Paper titled, Stepper Motor Driven Four-Bar: Dynamic Modeling and Synthesis
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Topics: Dynamic modeling, Stepper motors, Inertia (Mechanics), Torque, Engines, Motors, Circuits, Differential equations, Dynamic models, Dynamic response
Proceedings Papers

A Study on Electro-Magnetic Auto-Balancing System and its Balancing Method

Xixuan Wang, Sheng Zeng
Proc. ASME. DETC97, Volume 1B: 16th Biennial Conference on Mechanical Vibration and Noise, V01BT07A011, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4053
https://doi.org/10.1115/DETC97/VIB-4053
View Paper titled, A Study on Electro-Magnetic Auto-Balancing System and its Balancing Method
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Topics: Electromagnetic force, Plates (structures), Rotors, Sensors, Stators
Proceedings Papers

Rotor Instability Due to Coupled Effect of Lateral and Torsional Modes and Improper Bearing Design

Yatao Zhang, Jari Nyqvist
Proc. ASME. DETC97, Volume 1B: 16th Biennial Conference on Mechanical Vibration and Noise, V01BT07A016, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4031
https://doi.org/10.1115/DETC97/VIB-4031
View Paper titled, Rotor Instability Due to Coupled Effect of Lateral and Torsional Modes and Improper Bearing Design
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Topics: Bearing design, Rotors, Vibration, Stability, Vibration analysis, Bearings, Dampers, Gears, Generators, Stators
Proceedings Papers

Spontaneous Sidebanding at Subharmonic Peaks of Rotordynamic Nonlinear Response

Fredric Ehrich, Marc Berthillier
Proc. ASME. DETC97, Volume 1B: 16th Biennial Conference on Mechanical Vibration and Noise, V01BT07A017, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4041
https://doi.org/10.1115/DETC97/VIB-4041
View Paper titled, Spontaneous Sidebanding at Subharmonic Peaks of Rotordynamic Nonlinear Response
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Topics: Clearances (Engineering), Computer simulation, Machinery, Nonlinear systems, Rotordynamics, Rotors, Stators, Vibration