Search Results | ASME Digital Collection

1-20 of 22

Sort by

Sort Order Select

Journal Articles

Detection of Cracks in Turbomachinery Blades by Online Monitoring

Manish Kumar, Roger Heinig, Mark Cottrell, Christian Siewert, Henning Almstedt, Drew Feiner, Jerry Griffin

J. Eng. Gas Turbines Power. April 2023, 145(4): 041023.

Paper No: GTP-20-1830

DOI: https://doi.org/10.1115/1.4053705

Published Online: February 27, 2023

View Article

Topics: Blades, Fracture (Materials)

Proceedings Papers

Rotor-Blade Interaction During Blade Resonance Drive-Through

Roland Grein, Ulrich Ehehalt, Christian Siewert, Norbert Kill

Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT28A003, June 7–11, 2021

Paper No: GT2021-59160

DOI: https://doi.org/10.1115/GT2021-59160

View Paper

Topics: Blades, Resonance, Rotors, Vibration, Bearings, Combined cycle power stations, Cycles, Fatigue, Plant design, Pressure

Proceedings Papers

Analysis of Intentional Mistuning on the Aeroelastic Stability of Freestanding Last Stage Blade Rows in Steam Turbines

Christian Siewert, Oliver Pütz, Jonas Eigemann

Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T23A010, September 21–25, 2020

Paper No: GT2020-14656

DOI: https://doi.org/10.1115/GT2020-14656

View Paper

Topics: Blades, Stability, Steam turbines, Vibration, Damping, Flutter (Aerodynamics), Computational fluid dynamics, Manufacturing, Mechanical properties, Stiffness

Proceedings Papers

Detection of Cracks in Turbomachinery Blades by Online Monitoring

Manish Kumar, Roger Heinig, Mark Cottrell, Christian Siewert, Henning Almstedt, Drew Feiner, Jerry Griffin

Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T23A016, September 21–25, 2020

Paper No: GT2020-14813

DOI: https://doi.org/10.1115/GT2020-14813

View Paper

Topics: Blades, Crack detection, Turbomachinery, Fracture (Materials), Inspection, Oscillating frequencies, Rotors, Separation (Technology)

Proceedings Papers

Advanced Last Stage Blade for Nuclear Power Plant Upgrades

Christian Siewert, James R. McCracken, Thomas Thiemann

Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A018, June 17–21, 2019

Paper No: GT2019-90860

DOI: https://doi.org/10.1115/GT2019-90860

View Paper

Topics: Blades, Nuclear power stations, Damping, Inspection, Steam turbines, Vibration, Design, Electric power generation, Excitation, Power stations

Proceedings Papers

Development of a Last Stage Blade Row Coupled by Damping Elements: Numerical Assessment of its Vibrational Behavior and its Experimental Validation During Spin Pit Measurements

Christian Siewert, Frank Sieverding, William J. McDonald, Manish Kumar, James R. McCracken

Proc. ASME. GT2017, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T29A018, June 26–30, 2017

Paper No: GT2017-63630

DOI: https://doi.org/10.1115/GT2017-63630

View Paper

Topics: Blades, Damping, Particle spin, Rotation, Spin (Aerodynamics), Stress, Steam, Vibration, Airfoils, Centrifugal force

Proceedings Papers

Optimization of the Vibration Behavior at Speed-Synchronous Resonance of a Large Turbine Blade During Speed-Up and Coast-Down Under Consideration of Mistuning

Bertold Lübbe, Christian Siewert

Proc. ASME. GT2017, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T29A013, June 26–30, 2017

Paper No: GT2017-63550

DOI: https://doi.org/10.1115/GT2017-63550

View Paper

Topics: Optimization, Resonance, Shorelines, Turbine blades, Vibration, Blades, Excitation, Rotors, Transients (Dynamics), Turbines

Journal Articles

Transient Forced Response Analysis of Mistuned Steam Turbine Blades During Startup and Coastdown

Christian Siewert, Heinrich Stüer

J. Eng. Gas Turbines Power. January 2017, 139(1): 012501.

Paper No: GTP-14-1459

DOI: https://doi.org/10.1115/1.4034151

Published Online: August 16, 2016

View Article

Topics: Blades, Disks, Transients (Dynamics), Vibration, Turbines, Steam turbines, Dynamics (Mechanics), Finite element model, Mode shapes, Stiffness

Proceedings Papers

Transient Forced Response Analysis of Mistuned Steam Turbine Blades During Start-Up and Coast-Down

Christian Siewert, Heinrich Stüer

Proc. ASME. GT2014, Volume 1B: Marine; Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V01BT27A022, June 16–20, 2014

Paper No: GT2014-25654

DOI: https://doi.org/10.1115/GT2014-25654

View Paper

Topics: Blades, Shorelines, Steam turbines, Transients (Dynamics), Disks, Vibration, Flutter (Aerodynamics), Dynamics (Mechanics), Eigenvalues, Statistics

Proceedings Papers

Reduced Order Modeling Based on Complex Nonlinear Modal Analysis and its Application to Bladed Disks With Shroud Contact

Malte Krack, Lars Panning-von Scheidt, Jörg Wallaschek, Christian Siewert, Andreas Hartung

Proc. ASME. GT2013, Volume 7B: Structures and Dynamics, V07BT31A010, June 3–7, 2013

Paper No: GT2013-94560

DOI: https://doi.org/10.1115/GT2013-94560

View Paper

Topics: Disks, Modal analysis, Modeling, Damping, Design, Flutter (Aerodynamics), Limit cycles, Oscillations, Resonance, Algebra

Proceedings Papers

Multiharmonic Analysis and Design of Shroud Friction Joints of Bladed Disks Subject to Microslip

Malte Krack, Anna Herzog, Lars Panning-von Scheidt, Jörg Wallaschek, Christian Siewert, Andreas Hartung

Proc. ASME. IDETC-CIE2012, Volume 1: 24th Conference on Mechanical Vibration and Noise, Parts A and B, 1083-1092, August 12–15, 2012

Paper No: DETC2012-70184

DOI: https://doi.org/10.1115/DETC2012-70184

View Paper

Topics: Design, Disks, Friction, Resonance, Vibration, Ansätze (Mathematics), Coulombs, Damping, Dynamics (Mechanics), Elasticity

Journal Articles

Reduced Order Modeling Based on Complex Nonlinear Modal Analysis and Its Application to Bladed Disks With Shroud Contact

Malte Krack, Lars Panning-von Scheidt, Jörg Wallaschek, Christian Siewert, Andreas Hartung

J. Eng. Gas Turbines Power. October 2013, 135(10): 102502.

Paper No: GTP-13-1187

DOI: https://doi.org/10.1115/1.4025002

Published Online: August 30, 2013

View Article

Topics: Damping, Design, Disks, Excitation, Friction, Modal analysis, Resonance, Vibration, Limit cycles, Optimization

Proceedings Papers

Robust Design of Friction Interfaces of Bladed Disks With Respect to Parameter Uncertainties

Malte Krack, Lars Panning, Jörg Wallaschek, Christian Siewert, Andreas Hartung

Proc. ASME. GT2012, Volume 7: Structures and Dynamics, Parts A and B, 1193-1204, June 11–15, 2012

Paper No: GT2012-68578

DOI: https://doi.org/10.1115/GT2012-68578

View Paper

Topics: Design, Disks, Friction, Uncertainty, Coulombs, Damping, Equations of motion, Excitation, Optimization, Probability

Proceedings Papers

Forced Response Analysis of Mistuned Turbine Bladings

Christian Siewert, Heinrich Stu¨er

Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 1145-1156, June 14–18, 2010

Paper No: GT2010-23782

DOI: https://doi.org/10.1115/GT2010-23782

View Paper

Topics: Damping, Disks, Dynamics (Mechanics), Stiffness, Turbines

Proceedings Papers

A Substructure Based Reduced Order Model for Mistuned Bladed Disks

Andreas Hohl, Christian Siewert, Lars Panning, Jo¨rg Wallaschek

Proc. ASME. IDETC-CIE2009, Volume 1: 22nd Biennial Conference on Mechanical Vibration and Noise, Parts A and B, 899-906, August 30–September 2, 2009

Paper No: DETC2009-87459

DOI: https://doi.org/10.1115/DETC2009-87459

View Paper

Topics: Disks, Blades, Waves, Degrees of freedom, Modal analysis

Journal Articles

Multiharmonic Forced Response Analysis of a Turbine Blading Coupled by Nonlinear Contact Forces

Christian Siewert, Lars Panning, Jörg Wallaschek, Christoph Richter

J. Eng. Gas Turbines Power. August 2010, 132(8): 082501.

DOI: https://doi.org/10.1115/1.4000266

Published Online: May 26, 2010

View Article

Topics: Turbines, Vibration, Displacement, Friction, Blades, Excitation, Stiffness, Stress, Failure

Journal Articles

Eddy Current Damping: A Concept Study for Steam Turbine Blading

Jacob Laborenz, Christian Siewert, Lars Panning, Jörg Wallaschek, Christoph Gerber, Pierre-Alain Masserey

J. Eng. Gas Turbines Power. May 2010, 132(5): 052505.

DOI: https://doi.org/10.1115/1.3205032

Published Online: March 5, 2010

View Article

Topics: Damping, Eddies (Fluid dynamics), Eddy currents (Electricity), Blades, Vibration, Steam turbines

Proceedings Papers

Eddy Current Damping: A Concept Study for Steam Turbine Blading

Jacob Laborenz, Christian Siewert, Lars Panning, Jo¨rg Wallaschek, Christoph Gerber, Pierre-Alain Masserey

Proc. ASME. GT2009, Volume 6: Structures and Dynamics, Parts A and B, 333-342, June 8–12, 2009

Paper No: GT2009-59593

DOI: https://doi.org/10.1115/GT2009-59593

View Paper

Topics: Damping, Eddies (Fluid dynamics), Eddy currents (Electricity), Steam turbines, Blades, Dampers, Failure, Friction, High cycle fatigue, Machinery

Proceedings Papers

Multiharmonic Forced Response Analysis of a Turbine Blading Coupled by Nonlinear Contact Forces

Christian Siewert, Lars Panning, Jo¨rg Wallaschek, Christoph Richter

Proc. ASME. GT2009, Volume 6: Structures and Dynamics, Parts A and B, 231-243, June 8–12, 2009

Paper No: GT2009-59201

DOI: https://doi.org/10.1115/GT2009-59201

View Paper

Topics: Blades, Centrifugal force, Damage, Damping, Design, Displacement, Energy dissipation, Excitation, Failure, Friction

Proceedings Papers

Numerical and Experimental Damping Prediction of a Nonlinearly Coupled Low Pressure Steam Turbine Blading

Christian Siewert, Lars Panning, Christoph Gerber, Pierre-Alain Masserey

Proc. ASME. GT2008, Volume 5: Structures and Dynamics, Parts A and B, 531-542, June 9–13, 2008

Paper No: GT2008-51073

DOI: https://doi.org/10.1115/GT2008-51073

View Paper

Topics: Damping, Pressure, Steam turbines, Blades, Vibration, Damage, Design, Energy dissipation, Friction, Nonlinear equations

Journal citation

NARROW

Detection of Cracks in Turbomachinery Blades by Online Monitoring

Rotor-Blade Interaction During Blade Resonance Drive-Through

Analysis of Intentional Mistuning on the Aeroelastic Stability of Freestanding Last Stage Blade Rows in Steam Turbines

Detection of Cracks in Turbomachinery Blades by Online Monitoring

Advanced Last Stage Blade for Nuclear Power Plant Upgrades

Development of a Last Stage Blade Row Coupled by Damping Elements: Numerical Assessment of its Vibrational Behavior and its Experimental Validation During Spin Pit Measurements

Optimization of the Vibration Behavior at Speed-Synchronous Resonance of a Large Turbine Blade During Speed-Up and Coast-Down Under Consideration of Mistuning

Transient Forced Response Analysis of Mistuned Steam Turbine Blades During Startup and Coastdown

Transient Forced Response Analysis of Mistuned Steam Turbine Blades During Start-Up and Coast-Down

Reduced Order Modeling Based on Complex Nonlinear Modal Analysis and its Application to Bladed Disks With Shroud Contact

Multiharmonic Analysis and Design of Shroud Friction Joints of Bladed Disks Subject to Microslip

Reduced Order Modeling Based on Complex Nonlinear Modal Analysis and Its Application to Bladed Disks With Shroud Contact

Robust Design of Friction Interfaces of Bladed Disks With Respect to Parameter Uncertainties

Forced Response Analysis of Mistuned Turbine Bladings

A Substructure Based Reduced Order Model for Mistuned Bladed Disks

Multiharmonic Forced Response Analysis of a Turbine Blading Coupled by Nonlinear Contact Forces

Eddy Current Damping: A Concept Study for Steam Turbine Blading

Eddy Current Damping: A Concept Study for Steam Turbine Blading

Multiharmonic Forced Response Analysis of a Turbine Blading Coupled by Nonlinear Contact Forces

Numerical and Experimental Damping Prediction of a Nonlinearly Coupled Low Pressure Steam Turbine Blading

Journals

Conference Proceedings

eBooks

Resources

Opportunities

Journals

Conference Proceedings

eBooks

Resources

Opportunities

This Feature Is Available To Subscribers Only