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Lloyd E. Barrett
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Proceedings Papers

Magnetic Bearing Models With Flexible Supports in Rotor Stability Analyses

Theodore S. Brockett, Lloyd E. Barrett
Proc. ASME. DETC95, Volume 3B: 15th Biennial Conference on Mechanical Vibration and Noise — Acoustics, Vibrations, and Rotating Machines, 1063-1072, September 17–20, 1995
Publisher: American Society of Mechanical Engineers
Paper No: DETC1995-0501
https://doi.org/10.1115/DETC1995-0501
View Paper titled, Magnetic Bearing Models With Flexible Supports in Rotor Stability Analyses
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Topics: Magnetic bearings, Rotors, Stability, Actuators, Bearings, Stiffness, Transfer functions, Damping, Eigenvalues, Currents
Proceedings Papers

A Flexible Rotor on Flexible Bearing Supports: Part I — Stability

José A. Vázquez, Lloyd E. Barrett, Ronald D. Flack
Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 977-983, September 12–16, 1999
Publisher: American Society of Mechanical Engineers
Paper No: DETC99/VIB-8285
https://doi.org/10.1115/DETC99/VIB-8285
View Paper titled, A Flexible Rotor on Flexible Bearing Supports: Part I — Stability
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Topics: Bearings, Rotors, Stability, Frequency response, Stiffness, Fluid films, Polynomials, Transfer functions
Proceedings Papers

A Flexible Rotor on Flexible Bearing Supports: Part II — Unbalance Response

José A. Vázquez, Lloyd E. Barrett, Ronald D. Flack
Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 985-990, September 12–16, 1999
Publisher: American Society of Mechanical Engineers
Paper No: DETC99/VIB-8286
https://doi.org/10.1115/DETC99/VIB-8286
View Paper titled, A Flexible Rotor on Flexible Bearing Supports: Part II — Unbalance Response
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Topics: Bearings, Rotors, Frequency response, Stiffness, Fluid films, Polynomials, Transfer functions
Proceedings Papers

Optimization of Bearing Locations for Rotor Systems With Magnetic Bearings

Sriram Srinivasan, Eric H. Maslen, Lloyd E. Barrett
Proc. ASME. GT1995, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V005T14A017, June 5–8, 1995
Publisher: American Society of Mechanical Engineers
Paper No: 95-GT-217
https://doi.org/10.1115/95-GT-217
View Paper titled, Optimization of Bearing Locations for Rotor Systems With Magnetic Bearings
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Topics: Bearings, Magnetic bearings, Optimization, Rotors, Bearing design, Design, Scalars, Stability, Machinery, Compressors
Proceedings Papers

Developing a Cooperative International Program in Graduate Education and Research

Juan Oliveras, Lloyd E. Barrett, Ronald D. Flack
Proc. ASME. GT1997, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T16A009, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-313
https://doi.org/10.1115/97-GT-313
View Paper titled, Developing a Cooperative International Program in Graduate Education and Research
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Topics: Bearings, Education, Engineers, Flow (Dynamics), Gas turbines, Petrochemicals, Rotordynamics, Students, Turbomachinery
Proceedings Papers

Representing Flexible Supports by Polynomial Transfer Functions

José A. Vázquez, Lloyd E. Barrett
Proc. ASME. GT1998, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V005T14A008, June 2–5, 1998
Publisher: American Society of Mechanical Engineers
Paper No: 98-GT-027
https://doi.org/10.1115/98-GT-027
View Paper titled, Representing Flexible Supports by Polynomial Transfer Functions
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Topics: Polynomials, Transfer functions, Rotors, Bearings, Degrees of freedom, Stability, Dynamics (Mechanics), Computers, Damping, Dynamic stability
Proceedings Papers

Comparison Between Calculated and Measured Free-Free Modes for a Flexible Rotor

José A. Vázquez, Lloyd E. Barrett
Proc. ASME. GT1998, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V005T14A011, June 2–5, 1998
Publisher: American Society of Mechanical Engineers
Paper No: 98-GT-051
https://doi.org/10.1115/98-GT-051
View Paper titled, Comparison Between Calculated and Measured Free-Free Modes for a Flexible Rotor
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Topics: Rotors, Bearings, Mode shapes, Stability, Damping, Eigenvalues, Machinery, Stiffness, Testing
Proceedings Papers

Flexible Bearing Supports, Using Experimental Data

José A. Vázquez, Lloyd E. Barrett, Ronald D. Flack
Proc. ASME. GT2000, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V004T03A046, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0404
https://doi.org/10.1115/2000-GT-0404
View Paper titled, Flexible Bearing Supports, Using Experimental Data
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Topics: Bearings, Rotors, Anisotropy, Compressors, Fluid films, Polynomials, Stability, Transfer functions
Proceedings Papers

Damping Ratio Estimation Techniques for Rotordynamic Stability Measurements

C. Hunter Cloud, Eric H. Maslen, Lloyd E. Barrett
Proc. ASME. GT2008, Volume 5: Structures and Dynamics, Parts A and B, 1111-1120, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-50691
https://doi.org/10.1115/GT2008-50691
View Paper titled, Damping Ratio Estimation Techniques for Rotordynamic Stability Measurements
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Topics: Damping, Stability, Rotors, Bearings, Complex systems, Degrees of freedom
Journal Articles

Damping Ratio Estimation Techniques for Rotordynamic Stability Measurements

C. Hunter Cloud, Eric H. Maslen, Lloyd E. Barrett
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2009, 131(1): 012504.
https://doi.org/10.1115/1.2967484
Published Online: October 10, 2008
View Article titled, Damping Ratio Estimation Techniques for Rotordynamic Stability Measurements
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Topics: Bearings, Damping, Rotors, Stability, Excitation, Anisotropy
Journal Articles

A Flexible Rotor on Flexible Bearing Supports: Stability and Unbalance Response

Jose´ A. Va´zquez, Research Scientist, Assoc. Mem. ASME, Lloyd E. Barrett, Professor, Mem. ASME, Ronald D. Flack, Professor, Mem. ASME
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. April 2001, 123(2): 137–144.
https://doi.org/10.1115/1.1355244
Published Online: December 1, 2000
View Article titled, A Flexible Rotor on Flexible Bearing Supports: Stability and Unbalance Response
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Topics: Bearings, Rotors, Stability, Stiffness, Transfer functions, Sensors