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Proceedings Papers

Robust Optimization of a Compressor Blade Through Combination of an Adjoint-Based Multistart Approach and Global Gaussian Process Regression

Aryan Karimian, Robin Schmidt, Christian Janke
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT34A002, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121351
https://doi.org/10.1115/GT2024-121351
... to the efficient global optimization algorithm (EGO) where the behavior and overall results were evaluated by suitable criteria regarding the compressor application case. Following the established strategy, robust design optimization of a rotor blade from a state-of-the-art high-pressure compressor was conducted...
View Paper titled, Robust Optimization of a Compressor Blade Through Combination of an Adjoint-Based Multistart Approach and Global Gaussian Process Regression
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Topics: Blades, Compressors, Computational fluid dynamics, Design, Optimization, Rotors, Uncertainty
Proceedings Papers

Design and Parameter Identification of a Compliantly Damped Porous Carbon Hybrid Gas Bearing

Suryanarayan Balaji, Adolfo Delgado, Sang-Guk Kang, Chol-Bum M. Kweon
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100904
https://doi.org/10.1115/GT2023-100904
... failure in the event of intermittent contact, rubbing, or loss of air pressurization, due to the high lubricity of graphite and low friction surface. The use of a compliant bearing support structure allows the bearing to accommodate misalignment, centrifugal growth, large rotor excursion, and develop...
View Paper titled, Design and Parameter Identification of a Compliantly Damped Porous Carbon Hybrid Gas Bearing
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Topics: Bearings, Carbon, Dampers, Design, Gas bearings, Rotors, Stiffness