Volumes | Turbo Expo: Power for Land, Sea, and Air | American Society of Mechanical Engineers Digital Collection

Topics: Dampers , Flow (Dynamics) , Rotors , Sealing (Process) , Boundary layers , Compressors , Energy dissipation , Friction , High pressure (Physics) , Leakage

Comparison of a Liquid Annular Seal for Pump Applications With and Without a Swirl Brake

Nathan E. Balke, Dara W. Childs

GT 2019; V07BT34A003doi:https://doi.org/10.1115/GT2019-90113

Abstract

View Articletitled, Comparison of a Liquid Annular Seal for Pump Applications With and Without a Swirl Brake

PDF

Topics: Brakes , Pumps , Stiffness , Turbomachinery , Damping , Pressure , Clearances (Engineering) , Fluids , Leakage flows , Performance characterization

A Reduced Model for Air Foil Journal Bearings for Time-Efficient Run-Up Simulations

Pascal Zeise, Marcel Mahner, Marcel Bauer, Markus Rieken, Bernhard Schweizer

GT 2019; V07BT34A004doi:https://doi.org/10.1115/GT2019-90187

Abstract

View Articletitled, A Reduced Model for Air Foil Journal Bearings for Time-Efficient Run-Up Simulations

PDF

Topics: Engineering simulation , Journal bearings , Simulation , Bearings , Foil bearings , Rotors , Computer simulation , Computer software , Finite element analysis , Friction

On the Frequency Dependency of Tilting-Pad Journal Bearings

Laurence F. Wagner

GT 2019; V07BT34A005doi:https://doi.org/10.1115/GT2019-90195

Abstract

View Articletitled, On the Frequency Dependency of Tilting-Pad Journal Bearings

PDF

Topics: Bearings , Damping , Journal bearings , Stiffness , Degrees of freedom , Dynamic modeling , Hinges

Effect of Pad and Liner Material Properties on the Static Load Performance of a Tilting Pad Thrust Bearing

Rasool Koosha, Luis San Andrés

GT 2019; V07BT34A006doi:https://doi.org/10.1115/GT2019-90231

Abstract

View Articletitled, Effect of Pad and Liner Material Properties on the Static Load Performance of a Tilting Pad Thrust Bearing

PDF

Topics: Materials properties , Stress , Thrust bearings , Steel , Polymers , Temperature , Drag (Fluid dynamics) , Fluid films , Babbitt metal , Film thickness

Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor: Part 1 — Measurement

Jieun Song, Suyong Kim, Tae Choon Park, Bong-Jun Cha, Dong Hun Lim, Joo Sung Hong, Tae Wook Lee, Seung Jin Song

GT 2019; V07BT34A007doi:https://doi.org/10.1115/GT2019-90237

Abstract

View Articletitled, Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor: Part 1 — Measurement

PDF

Topics: Compressors , Flow (Dynamics) , Stiffness , Pressure , Cavities , Pressure measurement

Leakage and Force Coefficients of a Grooved Wet (Bubbly Liquid) Seal for Multiphase Pumps and Comparisons With Prior Test Results for a Three Wave Seal

Xueliang Lu, Luis San Andrés, Tingcheng Wu

GT 2019; V07BT34A008doi:https://doi.org/10.1115/GT2019-90254

Abstract

View Articletitled, Leakage and Force Coefficients of a Grooved Wet (Bubbly Liquid) Seal for Multiphase Pumps and Comparisons With Prior Test Results for a Three Wave Seal

PDF

Topics: Leakage , Pumps , Waves , Damping , Clearances (Engineering) , Flow (Dynamics) , Pressure drop , Stiffness , Wear , Boilers

Experiments on a Large Flexure Pivot Journal Bearing: Summary of Test Results and Comparison With Predictions

Giuseppe Vannini, Filippo Cangioli, Enrico Ciulli, Matteo Nuti, Paola Forte, Jongsoo Kim, Richard Livermore-Hardy

GT 2019; V07BT34A009doi:https://doi.org/10.1115/GT2019-90278

Abstract

View Articletitled, Experiments on a Large Flexure Pivot Journal Bearing: Summary of Test Results and Comparison With Predictions

PDF

Topics: Bending (Stress) , Journal bearings , Stress , Compressors , Bearings , Boundary-value problems , Design , Flow (Dynamics) , Hydraulic actuators , Instrumentation

Model and Experimental Verification of the Dynamic Forced Performance of a Tightly Sealed Squeeze Film Damper Supplied With a Bubbly Mixture

Luis San Andrés, Bonjin Koo

GT 2019; V07BT34A010doi:https://doi.org/10.1115/GT2019-90330

Abstract

View Articletitled, Model and Experimental Verification of the Dynamic Forced Performance of a Tightly Sealed Squeeze Film Damper Supplied With a Bubbly Mixture

PDF

Topics: Dampers , Pressure , Lubricants , Damping , Cycles , Flow (Dynamics) , Inertia (Mechanics) , Piston rings , Stiffness , Whirls

Leakage and Dynamic Force Coefficients of a Pocket Damper Seal Operating Under a Wet Gas Condition: Tests vs. Predictions

Jing Yang, Luis San Andrés, Xueliang Lu

GT 2019; V07BT34A011doi:https://doi.org/10.1115/GT2019-90331

Abstract

View Articletitled, Leakage and Dynamic Force Coefficients of a Pocket Damper Seal Operating Under a Wet Gas Condition: Tests vs. Predictions

PDF

Topics: Dampers , Leakage , Computational fluid dynamics , Flow (Dynamics) , Damping , Rotors , Pressure , Stiffness , Excitation , Cavities

Influence of Lubrication Oil on the Performance of Carbon Fibre Brush Seals for Aero-Engines Bearing Chambers

Bilal Outirba, Patrick Hendrick

GT 2019; V07BT34A012doi:https://doi.org/10.1115/GT2019-90459

Abstract

View Articletitled, Influence of Lubrication Oil on the Performance of Carbon Fibre Brush Seals for Aero-Engines Bearing Chambers

PDF

Topics: Aircraft engines , Bearings , Carbon fibers , Lubrication , Fibers , Temperature , Lift (Fluid dynamics) , Pressure , Torque , Viscosity

Static Stiffness Measurements for a Thrust Collar Used in an Integrally Geared Compressor

Thomas Kerr, Adolfo Delgado, Dara Childs

GT 2019; V07BT34A013doi:https://doi.org/10.1115/GT2019-90488

Abstract

View Articletitled, Static Stiffness Measurements for a Thrust Collar Used in an Integrally Geared Compressor

PDF

Topics: Compressors , Stiffness , Thrust , Stress , Particle spin , Rotation , Spin (Aerodynamics) , Deflection , Cables , Gears

A New Structural Bump Foil Model With Application From Start-Up to Full Operating Conditions

Mihai Arghir, Omar Benchekroun

GT 2019; V07BT34A014doi:https://doi.org/10.1115/GT2019-90494

Abstract

View Articletitled, A New Structural Bump Foil Model With Application From Start-Up to Full Operating Conditions

PDF

Topics: Algorithms , Bearings , Errors , Film thickness , Fluid pressure , Foil bearings , Friction , Lubrication , Manufacturing , Rotors

Pump Grooved Seals: A CFD Approach to Improve Bulk-Flow Model Predictions

Tingcheng Wu, Luis San Andrés

GT 2019; V07BT34A015doi:https://doi.org/10.1115/GT2019-90499

Abstract

View Articletitled, Pump Grooved Seals: A CFD Approach to Improve Bulk-Flow Model Predictions

PDF

Topics: Computational fluid dynamics , Flow (Dynamics) , Pumps , Leakage , Rotors , Shapes , Clearances (Engineering) , Damping , Pressure , Stators

Computational Analysis of the Equalization Behavior of Thrust Bearings With Regular and Modified Leveling Plates

Seckin Gokaltun, Scan DeCamillo

GT 2019; V07BT34A016doi:https://doi.org/10.1115/GT2019-90504

Abstract

View Articletitled, Computational Analysis of the Equalization Behavior of Thrust Bearings With Regular and Modified Leveling Plates

PDF

Topics: Plates (structures) , Thrust bearings , Finite element analysis , Bearings , Stress , Deformation , Design , Fluid films , Rotors

Improvement and Analysis for a Gaseous Cavitation Model Applied in a Tilting-Pad Journal Bearing

Aoshuang Ding, Xuesong Li, Yuhong Li

GT 2019; V07BT34A017doi:https://doi.org/10.1115/GT2019-90626

Abstract

View Articletitled, Improvement and Analysis for a Gaseous Cavitation Model Applied in a Tilting-Pad Journal Bearing

PDF

Topics: Cavitation , Journal bearings , Transients (Dynamics) , Bearings , Equilibrium (Physics) , Engineering simulation , Pressure , Simulation , Stress , Knudsen number

Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor: Part 2 — Analysis

Jieun Song, Seung Jin Song

GT 2019; V07BT34A018doi:https://doi.org/10.1115/GT2019-90669

Abstract

View Articletitled, Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor: Part 2 — Analysis

PDF

Topics: Compressors , Flow (Dynamics) , Cavities , Pressure , Blades , Boundary-value problems , Impellers , Stiffness , Excitation , Geometry

Numerical Investigations on the Static and Rotordynamic Characteristics of Hole-Pattern Seals With Annular or Pocket Grooves on Seal Stator

Zhi Fang, Zhigang Li, Jun Li, Zhenping Feng

GT 2019; V07BT34A019doi:https://doi.org/10.1115/GT2019-90776

Abstract

View Articletitled, Numerical Investigations on the Static and Rotordynamic Characteristics of Hole-Pattern Seals With Annular or Pocket Grooves on Seal Stator

PDF

Topics: Stators , Stiffness , Computational fluid dynamics , Damping , Compressors , Deformation , Leakage flows , Transients (Dynamics) , Dampers , Design

Numerical Modeling of Static and Rotordynamic Characteristics for Three Types of Helically-Grooved Liquid Annular Seals

Zhigang Li, Zhi Fang, Jun Li, Zhenping Feng

GT 2019; V07BT34A020doi:https://doi.org/10.1115/GT2019-90779

Abstract

View Articletitled, Numerical Modeling of Static and Rotordynamic Characteristics for Three Types of Helically-Grooved Liquid Annular Seals

PDF

Topics: Computer simulation , Leakage flows , Stators , Centrifugal pumps , Computational fluid dynamics , Drag (Fluid dynamics) , Rotors , Damping , Fluids , Stiffness

Numerical Comparison of Static and Rotordynamic Characteristics for a Grooved-Stator/Smooth-Rotor and a Smooth-Stator/Grooved-Rotor Liquid Annular Seals

Zhigang Li, Zhi Fang, Jun Li, Zhenping Feng

GT 2019; V07BT34A021doi:https://doi.org/10.1115/GT2019-90781

Abstract

View Articletitled, Numerical Comparison of Static and Rotordynamic Characteristics for a Grooved-Stator/Smooth-Rotor and a Smooth-Stator/Grooved-Rotor Liquid Annular Seals

PDF

Topics: Rotors , Stators , Whirls , Computational fluid dynamics , Drag (Fluid dynamics) , Leakage , Leakage flows , Pressure drop , Sealing (Process) , Transients (Dynamics)

Rotordynamic Characteristics Prediction for Hole-Pattern Seals Using CFD

Manish R. Thorat, James R. Hardin

GT 2019; V07BT34A022doi:https://doi.org/10.1115/GT2019-90846

Abstract

View Articletitled, Rotordynamic Characteristics Prediction for Hole-Pattern Seals Using CFD

PDF

Topics: Computational fluid dynamics , Excitation , Flow (Dynamics) , Flowmeters , Stiffness , Boundary-value problems , Deformation , Geometry , Nozzles , Signals

Compliant Hybrid Gas Bearing Using Integral Hermetically-Sealed Squeeze Film Dampers

Bugra Ertas

GT 2019; V07BT34A023doi:https://doi.org/10.1115/GT2019-90865

Abstract

View Articletitled, Compliant Hybrid Gas Bearing Using Integral Hermetically-Sealed Squeeze Film Dampers

PDF

Topics: Dampers , Gas bearings , Bearings , Cavities , Vibration , Bearing design , Damping , Design , Excitation , Fluid structure interaction

Nonlinear Vibration Prediction of a Highly Flexible Rotor Supported by an Axial Groove Journal Bearing Considering Journal Angular Whirling Motion

Nuntaphong Koondilogpiboon, Tsuyoshi Inoue

GT 2019; V07BT34A024doi:https://doi.org/10.1115/GT2019-90951

Abstract

View Articletitled, Nonlinear Vibration Prediction of a Highly Flexible Rotor Supported by an Axial Groove Journal Bearing Considering Journal Angular Whirling Motion

PDF

Topics: Journal bearings , Nonlinear vibration , Rotors , Whirls , Disks , Bearings , Bifurcation , Ball bearings , Steady state

Flow Induced Dynamics of Plate Seals

Deepak Trivedi, Bernardo Kerr

GT 2019; V07BT34A025doi:https://doi.org/10.1115/GT2019-90962

Abstract

View Articletitled, Flow Induced Dynamics of Plate Seals

PDF

Topics: Dynamics (Mechanics) , Flow (Dynamics) , Vibration , Plates (structures) , Rotors , Hydrostatics , Pressure drop , Stators , Turbomachinery , Boundary-value problems

An Instrumented High-Speed Rotor With Embedded Telemetry for the Continuous Spatial Pressure Profile Measurement in Gas Lubricated Bearings: A Proof of Concept

K. Shalash, J. Schiffmann

GT 2019; V07BT34A026doi:https://doi.org/10.1115/GT2019-90983

Abstract

View Articletitled, An Instrumented High-Speed Rotor With Embedded Telemetry for the Continuous Spatial Pressure Profile Measurement in Gas Lubricated Bearings: A Proof of Concept

PDF

Topics: Bearings , Pressure , Rotors , Telemetry , Bushings , Calibration , Journal bearings , Probes , Flow (Dynamics) , Orifices

Pressure Profile Measurements Within the Gas Film of Journal Foil Bearings Using an Instrumented Rotor With Telemetry

K. Shalash, J. Schiffmann

GT 2019; V07BT34A027doi:https://doi.org/10.1115/GT2019-90984

Abstract

View Articletitled, Pressure Profile Measurements Within the Gas Film of Journal Foil Bearings Using an Instrumented Rotor With Telemetry

PDF

Topics: Foil bearings , Pressure , Rotors , Telemetry , Bearings , Probes , Displacement , Fluid films , Journal bearings , Modeling

Influence of Blade Flexibility on the Dynamic Response Simulation of a Turbomolecular Pump on Magnetic Bearings

Alysson Bruno Barbosa Moreira, Fabrice Thouverez

GT 2019; V07BT34A028doi:https://doi.org/10.1115/GT2019-90990

Abstract

View Articletitled, Influence of Blade Flexibility on the Dynamic Response Simulation of a Turbomolecular Pump on Magnetic Bearings

PDF

Topics: Blades , Dynamic response , Magnetic bearings , Pumps , Simulation , Control equipment , Filters , Rotors , Computation , Equations of motion

Experimental Rotordynamic Force Coefficients for a Diffusion Bonded Compliant Hybrid Journal Gas Bearing Utilizing Fluid-Filled Hermetic Dampers

Keith Gary, Bugra Ertas

GT 2019; V07BT34A029doi:https://doi.org/10.1115/GT2019-91109

Abstract

View Articletitled, Experimental Rotordynamic Force Coefficients for a Diffusion Bonded Compliant Hybrid Journal Gas Bearing Utilizing Fluid-Filled Hermetic Dampers

PDF

Topics: Dampers , Diffusion (Physics) , Fluids , Gas bearings , Bearings , Damping , Excitation , Rotors , Stress , Design

Design and Prototype Test Data for a 300 kW AMB-Supported Turbine Generator for Natural Gas Pressure Letdown

Rasish Khatri, Larry Hawkins, Massimiliano Ortiz Neri, Francesco Cangioli, Davide Biliotti

GT 2019; V07BT34A030doi:https://doi.org/10.1115/GT2019-91172

Abstract

View Articletitled, Design and Prototype Test Data for a 300 kW AMB-Supported Turbine Generator for Natural Gas Pressure Letdown

PDF

Topics: Design , Engineering prototypes , Natural gas , Pressure , Turbogenerators , Bearings , Magnetic bearings , Generators , Dynamics (Mechanics) , Machinery

Thermal Optimization of Air Foil Thrust Bearings Using Different Foil Materials

Markus Rieken, Marcel Mahner, Bernhard Schweizer

GT 2019; V07BT34A031doi:https://doi.org/10.1115/GT2019-91207

Abstract

View Articletitled, Thermal Optimization of Air Foil Thrust Bearings Using Different Foil Materials

PDF

Topics: Optimization , Thrust bearings , Cooling , Flow (Dynamics) , Rotors , Deformation , Disks , Bearings , Dry friction , Flux (Metallurgy)

CFD Simulation of Air Ingestion in a Squeeze Film Damper

Wang Yan, Li Xuesong, Li Yuhong

GT 2019; V07BT34A032doi:https://doi.org/10.1115/GT2019-91285

Abstract

View Articletitled, CFD Simulation of Air Ingestion in a Squeeze Film Damper

PDF

Topics: Computational fluid dynamics , Dampers , Simulation , Bearings , Clearances (Engineering) , Flow (Dynamics) , Pressure , Rotor vibration , Rotors , Stability

Leakage and Cavity Pressures in an Interlocking Labyrinth Gas Seal: Measurements vs. Predictions

Luis San Andrés, Tingcheng Wu, Jose Barajas-Rivera, Jiaxin Zhang, Rimpei Kawashita

GT 2019; V07BT34A033doi:https://doi.org/10.1115/GT2019-91507

Abstract

View Articletitled, Leakage and Cavity Pressures in an Interlocking Labyrinth Gas Seal: Measurements vs. Predictions

PDF

Topics: Cavities , Leakage , Flow (Dynamics) , Pressure , Rotors , Computational fluid dynamics , Stators , Clearances (Engineering) , Compressors , High pressure (Physics)

Simulation, Test and Mitigation of 1/2X Forward Whirl Following Rotor Drop Onto Auxiliary Bearings

Xiao Kang, Alan Palazzolo

GT 2019; V07BT34A034doi:https://doi.org/10.1115/GT2019-91645

Abstract

View Articletitled, Simulation, Test and Mitigation of 1/2X Forward Whirl Following Rotor Drop Onto Auxiliary Bearings

PDF

Topics: Bearings , Rotors , Simulation , Whirls , Vibration , Ball bearings , Simulation models , Spin (Aerodynamics) , Dampers , Elastomers

Experimentally Measured Effectiveness of Different Shroud Swirl Brake Profiles in a Centrifugal Compressor

Jason Wilkes, Natalie Smith, Balaji Venkataraman, Marco Vagani, Sara Goucher

GT 2019; V07BT34A035doi:https://doi.org/10.1115/GT2019-91676

Abstract

View Articletitled, Experimentally Measured Effectiveness of Different Shroud Swirl Brake Profiles in a Centrifugal Compressor

PDF

Topics: Brakes , Compressors , Cavities , Dampers , Design , Probes , Bearings , Flow (Dynamics) , Innovation , Rotors

On the Integration of Hot Foil Bearings Into Gas Turbine Engines: Theoretical Treatment

Hooshang Heshmat, James F. Walton, II

GT 2019; V07BT34A036doi:https://doi.org/10.1115/GT2019-91710

Abstract

View Articletitled, On the Integration of Hot Foil Bearings Into Gas Turbine Engines: Theoretical Treatment

PDF

Topics: Foil bearings , Gas turbines , Bearings , Stiffness , Design , High temperature , Modeling , Rotors , System dynamics , Damping

The Influence of Ambient Pressure on the Measured Load Capacity of Bump-Foil and Spiral-Groove Gas Thrust Bearings at Ambient Pressures up to 69 Bar on a Novel High-Pressure Gas Bearing Test Rig

Jason Wilkes, Ryan Cater, Erik Swanson, Kevin Passmore, Jerry Brady

GT 2019; V07BT34A037doi:https://doi.org/10.1115/GT2019-91735

Abstract

View Articletitled, The Influence of Ambient Pressure on the Measured Load Capacity of Bump-Foil and Spiral-Groove Gas Thrust Bearings at Ambient Pressures up to 69 Bar on a Novel High-Pressure Gas Bearing Test Rig

PDF

Topics: Gas bearings , High pressure (Physics) , Pressure , Stress , Thrust bearings , Thrust , Bearings , Failure , Air bearings , Cavities

A Study on the Leakage and Rotordynamic Coefficients of a Long-Smooth Seal With Laminar-Two-Phase, Mainly-Oil Mixtures

Min Zhang, Dara W. Childs, Dung L. Tran, Hari Shrestha

GT 2019; V07BT34A038doi:https://doi.org/10.1115/GT2019-91824

Abstract

View Articletitled, A Study on the Leakage and Rotordynamic Coefficients of a Long-Smooth Seal With Laminar-Two-Phase, Mainly-Oil Mixtures

PDF

Topics: Leakage , Damping , Stiffness , Flow (Dynamics) , Laminar flow , Rotors , Clearances (Engineering) , Fluids , Friction , Leakage flows

A Study for Rotordynamic and Leakage Characteristics of a Long-Honeycomb Seal With Two-Phase, Mainly Air Mixtures

Min Zhang, Dara W. Childs

GT 2019; V07BT34A039doi:https://doi.org/10.1115/GT2019-91831

Abstract

View Articletitled, A Study for Rotordynamic and Leakage Characteristics of a Long-Honeycomb Seal With Two-Phase, Mainly Air Mixtures

PDF

Topics: Honeycomb structures , Leakage , Pressure , Clearances (Engineering) , Compressors , Damping , Excitation , Flow (Dynamics) , Fluids , Rotors

Experimental Study of the Static and Dynamic Characteristics of a Long (L/D=0.75) Labyrinth Annular Seal Operating Under Two-Phase (Liquid/Gas) Conditions

Hari Shrestha, Dara W. Childs, Dung L. Tran, Min Zhang

GT 2019; V07BT34A040doi:https://doi.org/10.1115/GT2019-91907

Abstract

View Articletitled, Experimental Study of the Static and Dynamic Characteristics of a Long (L/D=0.75) Labyrinth Annular Seal Operating Under Two-Phase (Liquid/Gas) Conditions

PDF

Topics: Brakes , Clearances (Engineering) , Compressors , Damping , Flow (Dynamics) , Leakage , Pressure , Silicones , Stability , Stiffness

Response Surface Mapping and Multi-Objective Optimization of Crowning and Tapers in Water-Lubricated Thrust Bearings

Xin Deng, Cori Watson, Minhui He, Roger Fittro, Houston Wood

GT 2019; V07BT34A041doi:https://doi.org/10.1115/GT2019-91984

Abstract

View Articletitled, Response Surface Mapping and Multi-Objective Optimization of Crowning and Tapers in Water-Lubricated Thrust Bearings

PDF

Topics: Pareto optimization , Response surface methodology , Thrust bearings , Water , Design , Bearing design , Bearings , Film thickness , Optimization , Viscosity

Structural Mechanics, Vibration, and Damping

Determination of Simultaneous Steady-State Movements Using Blade Tip Timing Data

Mohamed Mohamed, Philip Bonello, Peter Russhard

GT 2019; V07BT35A001doi:https://doi.org/10.1115/GT2019-90042

Abstract

View Articletitled, Determination of Simultaneous Steady-State Movements Using Blade Tip Timing Data

PDF

Topics: Blades , Steady state , Probes , Errors , Uncertainty , Calibration , Chords (Trusses) , Disks , Equilibrium (Physics) , Finite element analysis

A Study on the Application of Tuned Vibration Absorbers to Nominally Cyclic Structures

Mainak Mitra, Andrea Lupini, Bogdan I. Epureanu

GT 2019; V07BT35A002doi:https://doi.org/10.1115/GT2019-90167

Abstract

View Articletitled, A Study on the Application of Tuned Vibration Absorbers to Nominally Cyclic Structures

PDF

Topics: Vibration absorbers , Vibration , Dampers , Absorption , Damping , Density , Design , Disks , Friction , Stiffness

Application of Tuned Vibration Absorber Concept to Blisk Ring Dampers: A Nonlinear Study

Andrea Lupini, Mainak Mitra, Bogdan I. Epureanu

GT 2019; V07BT35A003doi:https://doi.org/10.1115/GT2019-90168

Abstract

View Articletitled, Application of Tuned Vibration Absorber Concept to Blisk Ring Dampers: A Nonlinear Study

PDF

Topics: Dampers , Vibration absorbers , Vibration , Blades , Energy transformation , Engineering design processes , Design , Energy dissipation , Finite element model , Friction

Experimental Investigation on Real Under-Platform Dampers: The Impact of Design and Manufacturing

Chiara Gastaldi, Teresa M. Berruti, Muzio M. Gola, Andrea Bessone

GT 2019; V07BT35A004doi:https://doi.org/10.1115/GT2019-90416

Abstract

View Articletitled, Experimental Investigation on Real Under-Platform Dampers: The Impact of Design and Manufacturing

PDF

Topics: Dampers , Design , Manufacturing , Friction , Shapes , Blades , Damping , Disks , Dry friction , Energy generation

Study on Vibration Response Characteristics of Mistuned Bladed Disk Expressed by Vibratory Stress

Yasutomu Kaneko, Toshio Watanabe, Tatsuya Furukawa, Saiji Washio

GT 2019; V07BT35A005doi:https://doi.org/10.1115/GT2019-90510

Abstract

View Articletitled, Study on Vibration Response Characteristics of Mistuned Bladed Disk Expressed by Vibratory Stress

PDF

Topics: Disks , Stress , Vibration , Blades , Displacement , Eigenvalues , Excitation , Flutter (Aerodynamics) , Manufacturing , Materials properties

Analytical Formulation of Friction Contact Elements for Frequency-Domain Analysis of Nonlinear Vibrations of Structures With High-Energy Rubs

E. P. Petrov

GT 2019; V07BT35A006doi:https://doi.org/10.1115/GT2019-90628

Abstract

View Articletitled, Analytical Formulation of Friction Contact Elements for Frequency-Domain Analysis of Nonlinear Vibrations of Structures With High-Energy Rubs

PDF

Topics: Frequency-domain analysis , Friction , Vibration , Stiffness , Bearings , Blades , Disks , Engines , Gas turbines , Machinery

Sensitivity and Forced Response Analysis of Anisotropy-Mistuned Bladed Disks With Nonlinear Contact Interfaces

Adam Koscso, E. P. Petrov

GT 2019; V07BT35A007doi:https://doi.org/10.1115/GT2019-90629

Abstract

View Articletitled, Sensitivity and Forced Response Analysis of Anisotropy-Mistuned Bladed Disks With Nonlinear Contact Interfaces

PDF

Topics: Anisotropy , Disks , Blades , Friction , Electromagnetic scattering , Excitation , Finite element analysis , Pressure

Analysis of Statistical Characteristics and Global Sensitivity for Forced Response of Bladed Disks Mistuned by Material Anisotropy

Rahul Rajasekharan, E. P. Petrov

GT 2019; V07BT35A008doi:https://doi.org/10.1115/GT2019-90632

Abstract

View Articletitled, Analysis of Statistical Characteristics and Global Sensitivity for Forced Response of Bladed Disks Mistuned by Material Anisotropy

PDF

Topics: Anisotropy , Disks , Blades , Crystals , Sensitivity analysis , Chaos , Design , Engines , Gas turbines , High pressure (Physics)

Asymptotic Description of Forced Response Vibration Saturation by Friction Forces

Carlos Martel, Juan A. Martín

GT 2019; V07BT35A009doi:https://doi.org/10.1115/GT2019-90765

Abstract

View Articletitled, Asymptotic Description of Forced Response Vibration Saturation by Friction Forces

PDF

Topics: Friction , Vibration , Disks , Blades , Oscillations , Springs , Boundary-value problems , Computation , Dampers , Damping

Reduced Order Models for Nonlinear Dynamic Analysis With Application to a Fan Blade

Mikel Balmaseda, G. Jacquet-Richardet, A. Placzek, D.-M. Tran

GT 2019; V07BT35A010doi:https://doi.org/10.1115/GT2019-90813

Abstract

View Articletitled, Reduced Order Models for Nonlinear Dynamic Analysis With Application to a Fan Blade

PDF

Topics: Blades , Dynamic analysis , Equilibrium (Physics) , Filters , Finite element model , Polynomials , Principal component analysis , Rotation , Stiffness , Vibration

Mistuning Analysis of a Detuned Bladed-Disk With Geometrical Nonlinearities

Anthony Picou, Evangéline Capiez-Lernout, Christian Soize, Moustapha Mbaye

GT 2019; V07BT35A011doi:https://doi.org/10.1115/GT2019-90820

Abstract

View Articletitled, Mistuning Analysis of a Detuned Bladed-Disk With Geometrical Nonlinearities

PDF

Topics: Disks , Blades , Uncertainty , Finite element model , Materials properties , Numerical analysis

Prediction of Geometrically Induced Localization Effects Using a Subset of Nominal System Modes

Thomas Maywald, Christoph R. Heinrich, Arnold Kühhorn, Sven Schrape, Thomas Backhaus

GT 2019; V07BT35A012doi:https://doi.org/10.1115/GT2019-90884

Abstract

View Articletitled, Prediction of Geometrically Induced Localization Effects Using a Subset of Nominal System Modes

PDF

Topics: Blades , Compressors , Design , Disks , Finite element model , Manufacturing , Mode shapes , Rotors , Stiffness , Vibration

Geometric Mistuning Reduced Order Model Development Utilizing Bayesian Surrogate Models for Component Mode Calculations

Joseph A. Beck, Jeffrey M. Brown, Alex A. Kaszynski, Emily B. Carper, Daniel L. Gillaugh

GT 2019; V07BT35A013doi:https://doi.org/10.1115/GT2019-90923

Abstract

View Articletitled, Geometric Mistuning Reduced Order Model Development Utilizing Bayesian Surrogate Models for Component Mode Calculations

PDF

Topics: Design , Errors , Finite element model , Geometry , Materials properties , Modal analysis , Mode shapes , Model development , Periodic structures , Rotors

Design Tools to the Best Coupling of Dry-Friction Solid Underplatform Dampers to Turbine Blades

Chiara Gastaldi, Muzio M. Gola

GT 2019; V07BT35A014doi:https://doi.org/10.1115/GT2019-91040

Abstract

View Articletitled, Design Tools to the Best Coupling of Dry-Friction Solid Underplatform Dampers to Turbine Blades

PDF

Topics: Dampers , Design , Dry friction , Turbine blades , Blades , Centrifugal force , Damping , Dynamic analysis , Excitation , Filters

A Statistical Characterization of the Effects and Interactions of Small and Large Mistuning on Multistage Bladed Disks

Eric Kurstak, Kiran D’Souza

GT 2019; V07BT35A015doi:https://doi.org/10.1115/GT2019-91094

Abstract

View Articletitled, A Statistical Characterization of the Effects and Interactions of Small and Large Mistuning on Multistage Bladed Disks

PDF

Topics: Damage , Design , Disks , Dynamics (Mechanics) , Engines , Manufacturing , Modal analysis , Modeling , Rotors , Statistical analysis

Probabilistic Response of a Bladed Disk With Uncertain Geometry

Luigi Carassale, Andrea Cavicchi, Silvia Bruzzone, Michela Marrè Brunenghi

GT 2019; V07BT35A016doi:https://doi.org/10.1115/GT2019-91174

Abstract

View Articletitled, Probabilistic Response of a Bladed Disk With Uncertain Geometry

PDF

Topics: Disks , Geometry , Blades , Uncertainty , Manufacturing , Modeling , Principal component analysis , Simulation

Nonlinear Harmonic Analysis of a Blade Model Subjected to Large Geometrical Deflection and Internal Resonance

Nicolas Di Palma, Adrien Martin, Fabrice Thouverez, Vivien Courtier

GT 2019; V07BT35A017doi:https://doi.org/10.1115/GT2019-91213

Abstract

View Articletitled, Nonlinear Harmonic Analysis of a Blade Model Subjected to Large Geometrical Deflection and Internal Resonance

PDF

Topics: Blades , Deflection , Resonance , Bifurcation , Stiffness , Frequency response

Analysis of Composite Blade/Casing Rub Stability Through Delayed Differential Equations

Jiaguangyi Xiao, Yong Chen, Jie Tian, Hua Ouyang, Anjenq Wang

GT 2019; V07BT35A018doi:https://doi.org/10.1115/GT2019-91333

Abstract

View Articletitled, Analysis of Composite Blade/Casing Rub Stability Through Delayed Differential Equations

PDF

Topics: Blades , Composite materials , Differential equations , Stability

Validation of a Turbine Blade Component Test With Frictional Contacts by Phase-Locked-Loop and Force-Controlled Measurements

Stefan Schwarz, Lukas Kohlmann, Andreas Hartung, Johann Gross, Maren Scheel, Malte Krack

GT 2019; V07BT35A019doi:https://doi.org/10.1115/GT2019-91374

Abstract

View Articletitled, Validation of a Turbine Blade Component Test With Frictional Contacts by Phase-Locked-Loop and Force-Controlled Measurements

PDF

Topics: Turbine blades , Blades , Frequency response , Chain , Control equipment , Damping , Excitation , Feedback , Force measurement , Friction

Strongly Coupled Thermo-Mechanical Casing/Abradable Model for Rotor/Stator Interactions

Florence Nyssen, Thibaut Vadcard, Elsa Piollet, Alain Batailly

GT 2019; V07BT35A020doi:https://doi.org/10.1115/GT2019-91447

Abstract

View Articletitled, Strongly Coupled Thermo-Mechanical Casing/Abradable Model for Rotor/Stator Interactions

PDF

Topics: Rotors , Stators , Thermomechanics , Coating processes , Coatings , Temperature , Blades , Disks , Engines , Wear

Strain Gage Ramifications on Mistuning in As-Manufactured Models and Experimental Testing

Daniel L. Gillaugh, Alexander A. Kaszynski, Jeffrey M. Brown, Joseph A. Beck, Joseph C. Slater

GT 2019; V07BT35A021doi:https://doi.org/10.1115/GT2019-91484

Abstract

View Articletitled, Strain Gage Ramifications on Mistuning in As-Manufactured Models and Experimental Testing

PDF

Topics: Strain gages , Testing , Materials properties , Finite element model , Blades , Engines , Rotors , Compressors , Dynamic response , Dynamics (Mechanics)

New Possibilities for Analyzing Complex Asynchronous Blade Vibrations From Tip-Timing Data Using a Sparse Spectral Analysis Method

Antoine Bouchain, José Picheral, Elisabeth Lahalle, Agathe Vercoutter, Bertrand Burgardt, Arnaud Talon

GT 2019; V07BT35A022doi:https://doi.org/10.1115/GT2019-91573

Abstract

View Articletitled, New Possibilities for Analyzing Complex Asynchronous Blade Vibrations From Tip-Timing Data Using a Sparse Spectral Analysis Method

PDF

Topics: Blades , Emission spectroscopy , Spectroscopy , Vibration , Algorithms , Engines , Flutter (Aerodynamics) , Signals , Uncertainty , Vibration tests

Emulation of As-Manufactured Transonic Rotor Airfoil Modal Behavior and the Significance of Frequency Veering

Jeffrey M. Brown, Emily B. Carper, Joseph A. Beck, Alexander A. Kaszynski

GT 2019; V07BT35A023doi:https://doi.org/10.1115/GT2019-91670

Abstract

View Articletitled, Emulation of As-Manufactured Transonic Rotor Airfoil Modal Behavior and the Significance of Frequency Veering

PDF

Topics: Airfoils , Rotors , Geometry , Mode shapes , Compressors , Physics , Principal component analysis , Regression models , Resonance , Stochastic processes

A New Mistuning Identification Method Based on the Subset of Nominal System Modes Method

Christian U. Waldherr, Patrick Buchwald, Damian M. Vogt

GT 2019; V07BT35A024doi:https://doi.org/10.1115/GT2019-91702

Abstract

View Articletitled, A New Mistuning Identification Method Based on the Subset of Nominal System Modes Method

PDF

Topics: Compressors , Databases , Degrees of freedom , Finite element analysis , Finite element model , Mode shapes , Noise (Sound) , Particle spin , Periodic structures , Rotation

A Reliable Pre-Processing for the Simulation of Friction Joints in Turbomachineries and its Validation: A Case Study With Policontact

Christian M. Firrone, Giuseppe Battiato

GT 2019; V07BT35A025doi:https://doi.org/10.1115/GT2019-91764

Abstract

View Articletitled, A Reliable Pre-Processing for the Simulation of Friction Joints in Turbomachineries and its Validation: A Case Study With Policontact

PDF

Topics: Friction , Simulation , Collaboration , Blades , Compressors , Computer software , Damping , Design , Failure , Finite element analysis

Effect of Switching Impulse on Piezoelectric-Based Vibration Reduction With Multiple Patches

Christopher R. Kelley, Jeffrey L. Kauffman

GT 2019; V07BT35A026doi:https://doi.org/10.1115/GT2019-91832

Abstract

View Articletitled, Effect of Switching Impulse on Piezoelectric-Based Vibration Reduction With Multiple Patches

PDF

Topics: Impulse (Physics) , Vibration , Switches , Piezoelectric transducers , Circuits , Piezoelectric materials , Blades , Design , Excitation , High cycle fatigue

Multi-Objective Optimization for Piezoelectric-Based Approaches With Applications Toward Bladed Disks

Garrett K. Lopp, Jeffrey L. Kauffman

GT 2019; V07BT35A027doi:https://doi.org/10.1115/GT2019-91861

Abstract

View Articletitled, Multi-Objective Optimization for Piezoelectric-Based Approaches With Applications Toward Bladed Disks

PDF

Topics: Disks , Pareto optimization , Vibration , Blades , Optimization , Actuators , Algorithms , Aluminum , Geometry , Sensors

Vibration Analysis of a Mistuned Axial Turbine Blisk

Bernd Beirow, Arnold Kühhorn, Felix Figaschewsky, Alfons Bornhorn

GT 2019; V07BT35A028doi:https://doi.org/10.1115/GT2019-92047

Abstract

View Articletitled, Vibration Analysis of a Mistuned Axial Turbine Blisk

PDF

Topics: Turbines , Vibration analysis , Blades , Excitation , Computer simulation , Design , Durability , Engineering prototypes , Engines , Genetic algorithms

All Years

Proceedings Papers

Bearing and Seal Dynamics

Structural Mechanics, Vibration, and Damping

Email alerts

Most Read Proceedings Papers in GT

Journals

Conference Proceedings

eBooks

Resources

Opportunities

This Feature Is Available To Subscribers Only