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Proceedings Papers

Duffing’s Vibration of a Rotor Supported on Gas Foil Bearings With Base Excitation: Measurements and Model Predictions

Tae Ho Kim, Young Min Kim, Jongsung Lee, Moon Sung Park, Kyoung-Ku Ha, Changha Lee, Chimyung Kim
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A005, June 13–17, 2016
Paper No: GT2016-56281
DOI: https://doi.org/10.1115/GT2016-56281
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Topics: Excitation, Foil bearings, Rotors, Vibration, Stress, Thrust, Eddies (Fluid dynamics), Eddy currents (Electricity), Impellers, Nonlinear equations
Proceedings Papers

Identification of Dynamic Characteristics of Gas Foil Thrust Bearings Using Base Excitation

Tae Ho Kim, Moon Sung Park, Jongsung Lee, Young Min Kim, Kyoung-Ku Ha, Jeonghee Park, Changha Lee, Chimyung Kim
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A006, June 13–17, 2016
Paper No: GT2016-56282
DOI: https://doi.org/10.1115/GT2016-56282
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Topics: Excitation, Thrust bearings, Stress, Bearings, Damping, Displacement, Rotors, Stiffness, Thrust, Turbomachinery
Proceedings Papers

Rotordynamic Performance Measurements and Predictions of a Rotor Supported on Multilayer Gas Foil Journal Bearings for Microturbomachinery

Jongsung Lee, Young Min Kim, Moon Sung Park, Tae Ho Kim, Kyoung Ku Ha, Changha Lee, Sae Hoon Kim
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A007, June 13–17, 2016
Paper No: GT2016-56283
DOI: https://doi.org/10.1115/GT2016-56283
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Topics: Journal bearings, Rotors, Temperature, Impellers, Clearances (Engineering), Displacement, Damping, Engines, Motors, Sensors
Proceedings Papers

Experimental Investigations of Effects of Centrifugal Compressor Impeller Design on Noise Characteristics

Kyoung-Ku Ha, Chang-ha Lee, Yong-sun Park, Shin-hyoung Kang, Chi-young Park, Hyun-sub Yang
Proc. ASME. GT2014, Volume 2D: Turbomachinery, V02DT42A038, June 16–20, 2014
Paper No: GT2014-26875
DOI: https://doi.org/10.1115/GT2014-26875
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Topics: Compressor impellers, Design, Noise (Sound), Compressors, Impellers, Flow (Dynamics), Blades, Fluctuations (Physics), Pressure, Signals
Proceedings Papers

Experimental Study on Aero-Acoustic Characteristics of a Centrifugal Compressor and an Optimal Design for Noise Reduction

Kyoung Ku Ha, Tae Bin Jeong, Shin Hyoung Kang
Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 543-550, July 8–12, 2012
Paper No: FEDSM2012-72421
DOI: https://doi.org/10.1115/FEDSM2012-72421
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Topics: Acoustics, Compressors, Design, Fuel cell vehicles, Noise (Sound), Noise control, Optimization, Blades, Impellers, Compressed air
Proceedings Papers

An Optimization Method for Centrifugal Compressor Design Using the Surrogate Management Framework

Kyoung Ku Ha, Shin Hyoung Kang
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 679-684, July 24–29, 2011
Paper No: AJK2011-22036
DOI: https://doi.org/10.1115/AJK2011-22036
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Topics: Compressors, Design, Optimization, Impellers, Experimental design, Simulation, Approximation, Blades, Computational fluid dynamics, Diffusers