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Proceedings Papers
Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing
Front Matter
Structures and Dynamics: Aerodynamics Excitation and Damping
An Experimental Study on the Effects of Non-Uniform Vane Spacing on Forced Response Reduction in a Mistuned Rotor Blisk in a Multistage Axial Compressor
GT 2024; V10AT21A001https://doi.org/10.1115/GT2024-121838
Topics:
Bladed disks
,
Compressors
,
Damping
,
Rotors
,
Blades
,
Stators
,
Excitation
,
Engines
,
Flow (Dynamics)
,
Fourier analysis
Numerical and Experimental Aeromechanic Study in High Frequency Domain of Hydrogen Compressor
Ravi Shanmugam Venkatachalam, Manjush Ganiger, Lorenzo Toni, Alberto Guglielmo, Davide Biliotti, Lorenzo Miris
GT 2024; V10AT21A002https://doi.org/10.1115/GT2024-122245
Topics:
Compression
,
Compressors
,
Hydrogen
Aeroelastic Influence of Blade-Shaft Coupling in a 1 1/2-Stage Axial Compressor
GT 2024; V10AT21A005https://doi.org/10.1115/GT2024-124275
Topics:
Blades
,
Compressors
,
Structural dynamics
,
Damping
,
Vibration
,
Design
,
Frequency response
,
Simulation
,
Acoustics
,
Aerodynamics
Fan Non-Synchronous Forced Vibration Under Crosswind
GT 2024; V10AT21A008https://doi.org/10.1115/GT2024-126523
Topics:
Separation (Technology)
,
Vibration
Numerical Study of Low Engine Order Excitations due to Manufacturing Variability Part 2: An Efficient Approach for Stochastic Studies
GT 2024; V10AT21A010https://doi.org/10.1115/GT2024-126570
Topics:
Engines
,
Excitation
,
Geometry
,
Manufacturing
,
Electromagnetic scattering
,
Flow (Dynamics)
,
Engineering simulation
,
Simulation
,
Airfoils
,
Blades
Numerical Study of Low Engine Order Excitations due to Manufacturing Variability Part 1: Characterization of the Geometric Scatter and its Effect on Forced Response
GT 2024; V10AT21A011https://doi.org/10.1115/GT2024-126586
Topics:
Electromagnetic scattering
,
Engines
,
Excitation
,
Geometry
,
Manufacturing
,
Airfoils
,
Aerodynamics
,
Blades
,
Aeroelasticity
,
Computational fluid dynamics
The Role of Operating Conditions on Flutter Instability of a Low-Pressure Turbine Rotor
Lorenzo Pinelli, Francesco Poli, Andrea Arnone, Antonio Giuseppe D’Ettole, Emanuele Rosso, Gianmaria Sartor, Vsevolod Kharyton
GT 2024; V10AT21A014https://doi.org/10.1115/GT2024-127528
Topics:
Flutter (Aerodynamics)
,
Pressure
,
Rotors
,
Turbines
Generic Framework for an Accurate, and Efficient Flutter Analysis
GT 2024; V10AT21A015https://doi.org/10.1115/GT2024-127818
Topics:
Flutter (Aerodynamics)
,
Turbomachinery
,
Traveling waves
,
Blades
,
Compressors
,
Computational fluid dynamics
,
Damping
,
Design
,
Durability
,
Engines
Understanding the Aerodynamic Damping Behavior of an Industrial Axial Compressor Rotor With Multi-Row Effects
Lorenzo Pinelli, Dario Vienni, Libero Tapinassi, Vittorio Michelassi, Corrado Burberi, Salvatore Lorusso, Mirko Ignesti, Michele Marconcini
GT 2024; V10AT21A016https://doi.org/10.1115/GT2024-128729
Topics:
Compressors
,
Damping
,
Rotors
Validation of a Methodology to Assess the Flutter Limit Cycle Oscillation Amplitude of Low-Pressure Turbine Bladed-Disks - Part I: Mach Number Effects
GT 2024; V10AT21A017https://doi.org/10.1115/GT2024-129074
Topics:
Bladed disks
,
Flutter (Aerodynamics)
,
Limit cycles
,
Mach number
,
Oscillations
,
Pressure
,
Turbines
,
Damping
,
Vibration
,
Blades
Validation of a Methodology to Assess the Flutter Limit Cycle Oscillation Amplitude of Low-Pressure Turbine Bladed-Disks - Part II: Shaft Speed Effects
GT 2024; V10AT21A018https://doi.org/10.1115/GT2024-129134
Topics:
Bladed disks
,
Flutter (Aerodynamics)
,
Limit cycles
,
Oscillations
,
Pressure
,
Turbines
,
Vibration
,
Dry friction
,
Friction
,
Aerodynamics
Experiments on Structurally Mistuned UHBR Open-Test-Case Fan ECL5/CATANA
GT 2024; V10AT21A020https://doi.org/10.1115/GT2024-129163
Topics:
Acoustics
,
Aerodynamics
,
Architecture
,
Blades
,
Carbon composites
,
Clearances (Engineering)
,
Compressors
,
Convection
,
Engines
,
Fans
An Analytical Study on the Effect of Non-Uniform Vane Spacing on Forced Response Reduction in a Mistuned Blisk Rotor in a Multistage Axial Compressor
GT 2024; V10AT21A023https://doi.org/10.1115/GT2024-134043
Topics:
Bladed disks
,
Compressors
,
Damping
,
Rotors
,
Blades
,
Stators
,
Excitation
,
Design
,
Engines
,
Optimization
Structures and Dynamics: Bearing and Seal Dynamics
Effect of Tilt on Thermo-Hydrodynamic Model of a Thrust Air Foil Bearing
GT 2024; V10AT22A004https://doi.org/10.1115/GT2024-123643
Topics:
Foil bearings
,
Modeling
,
Thermohydrodynamics
,
Thrust
,
Thrust bearings
,
Bearings
,
Disks
,
Accounting
,
Deformation
,
Heat
Experimental Investigations on Carbon Segmented Seals With Smooth and Pocketed Pads
GT 2024; V10AT22A006https://doi.org/10.1115/GT2024-124822
Topics:
Carbon
,
Leakage
,
Torque
,
Friction
,
Rotors
,
Carbon fibers
,
Flow (Dynamics)
,
Fluids
,
Leakage flows
,
Pressure
Large Axial Vibrations in Turbomachines: Non-Linear Behaviour of Double Sided Lubricated Thrust Bearing
GT 2024; V10AT22A007https://doi.org/10.1115/GT2024-124990
Topics:
Nonlinear dynamics
,
Thrust bearings
,
Turbomachinery
,
Vibration
,
Machinery
,
Bearings
,
Clearances (Engineering)
,
Bifurcation
,
Compressors
,
Flow (Dynamics)
Preventing Tilting Pad Fluttering by Using Elastic Pad Fixation
GT 2024; V10AT22A009https://doi.org/10.1115/GT2024-125725
Topics:
Bearings
,
Damage
,
Design
,
Fluid films
,
Journal bearings
,
Pressure
,
Rotor vibration
,
Thrust bearings
,
Vibration
Design Strategy of Thrust Gas Bearings for Refrigerant Compressors Considering Effects of Centrifugal Force and Convective Inertia
GT 2024; V10AT22A011https://doi.org/10.1115/GT2024-126107
Topics:
Centrifugal force
,
Compressors
,
Computational fluid dynamics
,
Design
,
Gas bearings
,
Inertia (Mechanics)
,
Refrigerants
,
Thrust
,
Turbulence
The Impact of Pad Elasticity on Frequency-Dependent Linear Dynamic Coefficients of Tilting-Pad Journal Bearings
GT 2024; V10AT22A013https://doi.org/10.1115/GT2024-126246
Topics:
Elasticity
,
Journal bearings
,
Stiffness
,
Bearings
,
Boundary-value problems
,
Deformation
,
Film thickness
,
Finite element model
,
Hydrodynamics
,
Lubricants
Performance of Heavily Loaded Textured Gas Foil Bearings Based on the Multigrid Method
GT 2024; V10AT22A014https://doi.org/10.1115/GT2024-126255
Topics:
Foil bearings
,
Stress
,
Texture (Materials)
,
Bearings
,
Algorithms
,
Equilibrium (Physics)
,
Friction
,
Journal bearings
,
Newton's method
,
Pressure
Sensitivity Analysis of Simplified Labyrinth Seals Model Stability to Flow Hypotheses
Giorgia Foschi, Fabrice Thouverez, Laurent Blanc, Giuseppe Fiore, Giampiero Pampolini, Patrick Girard
GT 2024; V10AT22A021https://doi.org/10.1115/GT2024-128188
Topics:
Flow (Dynamics)
,
Leakage
,
Sensitivity analysis
,
Shear stress
,
Stability
,
Fluids
,
Cavities
,
Engines
,
Leakage flows
,
Aeroelasticity
Experimental Characterization of Darcy Friction Factors of Bump Channel Flows and Application to Cooling Flow Path Design
GT 2024; V10AT22A022https://doi.org/10.1115/GT2024-128199
Topics:
Channel flow
,
Cooling
,
Design
,
Experimental characterization
,
Flow (Dynamics)
,
Foil bearings
,
Friction
,
Gas flow
,
Turbulence
Characterization of Orientation Effects of Spring Energized Seals Using 2D Simulations
Stefan Roeseler, Erin Volpe, Ryan Plessinger, Tyler Noyes, Elaine Motyka, Michael Shealy, Jonathan Kweder
GT 2024; V10AT22A026https://doi.org/10.1115/GT2024-129228
Topics:
Aerospace industry
,
Simulation
,
Springs
On the Predicted Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability in Hydrostatic Journal Bearings Using Compressible Fluid and Comparisons With Test Data
GT 2024; V10AT22A027https://doi.org/10.1115/GT2024-129343
Topics:
Bearings
,
Fluids
,
Hammers
,
Hydrostatics
,
Journal bearings
Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With Air, Water, and Liquid Nitrogen
GT 2024; V10AT22A029https://doi.org/10.1115/GT2024-129557
Topics:
Bearings
,
Design
,
Hydrostatics
,
Journal bearings
,
Lasers
,
Manufacturing
,
Nitrogen
,
Stress
,
Testing
,
Turbomachinery
Structures and Dynamics: Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing
Multi-Stage Cyclic Symmetry Analysis of an Industrial High Pressure Turbine Assembly – Comparing Structural, Modal, and Solve Statistics
GT 2024; V10AT23A001https://doi.org/10.1115/GT2024-121385
Topics:
High pressure (Physics)
,
Manufacturing
,
Statistics
,
Turbines
,
Geometry
,
Structural analysis
,
Airfoils
,
Modal analysis
,
Mode shapes
,
Modeling
Mechanical Performance and Material Characterization of Fused Filament Fabricated ABD 900 Superalloy
GT 2024; V10AT23A002https://doi.org/10.1115/GT2024-121425
Topics:
Equipment performance
,
Superalloys
,
Additive manufacturing
,
Manufacturing
,
Nickel
,
Geometry
,
Metals
,
Particulate matter
,
Sintering
,
Temperature
Effect of Heat Treatment and Multiple Passes Through Resonance on Damping and Vibration Frequencies of Additively Manufactured Structure With Inherent Damping
Grzegorz Moneta, Slawomir Cieslak, Wojciech Wdowinski, Maciej Malicki, Sebastian Szalkowski, Michal Fedasz, Sebastian Piecka, Konrad Raczko, Jakub Pilczynski
GT 2024; V10AT23A004https://doi.org/10.1115/GT2024-122766
Topics:
Additive manufacturing
,
Blades
,
Damping
,
Design
,
Heat treating (Metalworking)
,
Lasers
,
Optimization
,
Oscillating frequencies
,
Resonance
,
Vibration
Numerical Analysis of a Nozzle Guided Vane Filled With Lattice Structures
Ivan Senegaglia, Tommaso Grossi, Giuseppe Macoretta, Bernardo Disma Monelli, Andrea Fardelli, Girolamo Tripoli, Paolo del Turco, Simone Colantoni
GT 2024; V10AT23A005https://doi.org/10.1115/GT2024-124246
Topics:
Additive manufacturing
,
Alloys
,
Aviation
,
Design
,
Energy generation
,
Engineering simulation
,
Gas turbines
,
Geometry
,
Heat transfer
,
High temperature
Novel Microturbine Engine Test Stand for Rapid Assessment of New Materials and Manufacturing Procedures
GT 2024; V10AT23A006https://doi.org/10.1115/GT2024-125114
Topics:
Engines
,
Manufacturing
,
Microturbines
,
Testing
,
Turbomachinery
,
Design
,
Engine efficiency
,
Engineering prototypes
,
Failure
,
Hardware
A New Experimental Facility for the Study of Blade Tip Rubs at Engine Relevant Temperatures
Noah Broski, Christopher Keener, Theodore Loizos, Randall Mathison, Kiran D’Souza, Thomas Kasprow, Agnieszka M. Wusatowska-Sarnek
GT 2024; V10AT23A011https://doi.org/10.1115/GT2024-129413
Topics:
Blades
,
Engines
,
Gas turbines
,
Temperature
,
Turbomachinery
,
Linings (Textiles)
,
Temperature control
,
Design
,
Aircraft engines
,
Clearances (Engineering)