Rotor blade damping structures

Chakrabarti, Suryarghya; Li, Jing; Delvaux, John McConnell

Advanced Search OptionsAdvanced Search queries use a traditional Term Search. For more info, see our FAQ.

All Fields:

Patent Title:

Abstract:

Assignee:

Inventor(s):

Patent Number:

Patent Classification (CPC):

More Options ...

Title: Rotor blade damping structures

Abstract

A rotor blade assembly includes a first rotor blade and a second rotor blade positioned adjacent to one another. The first rotor blade and the second rotor blade each include a platform and an airfoil extending radially outward from a root coupled to the platform to a tip. The airfoil includes a part-span shroud. The part-span shroud extends from the airfoil and is disposed between the root and the tip. The part-span shroud includes a pressure side portion extending from the pressure side surface and a suction side portion extending from the suction side surface. A damper is in contact with both the part span shroud of the first rotor blade and the part span shroud of the second rotor blade at an interference joint. The damper is movable relative to the part span shroud of both the first rotor blade and the second rotor blade.

Inventors:: Chakrabarti, Suryarghya; Li, Jing; Delvaux, John McConnell

Issue Date:: 2022-12-27

Research Org.:: General Electric Co., Schenectady, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1986961

Patent Number(s):: 11536144

Application Number:: 17/038,601

Assignee:: Wasserbauer, Damian (Schenectady, NY)

DOE Contract Number:: FE0031613

Resource Type:: Patent

Resource Relation:: Patent File Date: 09/30/2020

Country of Publication:: United States

Language:: English

Citation Formats


                    Chakrabarti, Suryarghya, Li, Jing, and Delvaux, John McConnell. Rotor blade damping structures.  United States: N. p., 2022. 
        Web.

Copy to clipboard


                    Chakrabarti, Suryarghya, Li, Jing, & Delvaux, John McConnell. Rotor blade damping structures.  United States.

Copy to clipboard


                    Chakrabarti, Suryarghya, Li, Jing, and Delvaux, John McConnell. Tue .  
        "Rotor blade damping structures".  United States.  https://www.osti.gov/servlets/purl/1986961.

Copy to clipboard


                    
@article{osti_1986961,

  title        = {Rotor blade damping structures},

  author       = {Chakrabarti, Suryarghya and Li, Jing and Delvaux, John McConnell},

  abstractNote = {A rotor blade assembly includes a first rotor blade and a second rotor blade positioned adjacent to one another. The first rotor blade and the second rotor blade each include a platform and an airfoil extending radially outward from a root coupled to the platform to a tip. The airfoil includes a part-span shroud. The part-span shroud extends from the airfoil and is disposed between the root and the tip. The part-span shroud includes a pressure side portion extending from the pressure side surface and a suction side portion extending from the suction side surface. A damper is in contact with both the part span shroud of the first rotor blade and the part span shroud of the second rotor blade at an interference joint. The damper is movable relative to the part span shroud of both the first rotor blade and the second rotor blade.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2022},

  month        = {12}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Lightweight Composite Truss Wind Turbine Blade
patent-application, September 2007

Baker, Myles L.; Arendt, Cory P.
US Patent Application 11/725916; 20070217918
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070217918

Damping element for reducing the vibration of an airfoil
patent, November 2013

Campbell, Christian X.; Marra, John J.
US Patent Document 8,579,593
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8579593

Hollow blade having internal damper
patent, June 2019

Morris, Robert J.; Benedict, Barry K.
US Patent Document 10,316,670
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/10316670

Monolithic and bi-metallic turbine blade dampers and method of manufacture
patent, September 2012

Patrick, D. Keith; Bauer, Randall Charles; Kelly, Thomas Joseph
US Patent Document 8,267,662
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8267662

Bipedal damper turbine blade
patent, August 2008

Busbey, Bruce Clark; Weaver, Matthew Mark; Garay, Gregory Terrence
US Patent Document 7,413,405
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7413405

Rotor of a steam or gas turbine
patent, September 2006

Brock, Hans-Egon; Neumann, Günter; Jeske, Hans-Otto
US Patent Document 7,104,758
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7104758

Turbine blade damping
patent, July 1975

Pierpoline, Mario F.; Kuchma, Frank J.
US Patent Document 3,893,782
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3893782

Articles having damping coatings thereon
patent, April 2015

Delvaux, John McConnell; Lau, Yuk-Chiu
US Patent Document 9,011,104
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9011104

Vibration damping
patent, March 1998

Dodd, Alec G.
US Patent Document 5,730,584
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5730584

Turbine Bucket Assembly and Turbine System
patent-application, December 2015

Davidson, Dwight Eric; McDufford, Michael David; Potter, Brian Denver
US Patent Application 14/290076; 20150345296
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20150345296

Friction damper for gas turbine engine blades
patent, June 1996

Elaini, Yehia; Meece, Carl E.
US Patent Document 5,522,705
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5522705

Component with Internal Damping
patent-application, March 2005

Powell, Christopher A.
US Patent Application 10/878533; 20050047918
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050047918

Vibration damper assembly
patent, July 2012

Hunt, David J.; Pearce, Wesley J.; Elliott, Robert
US Patent Document 8,231,352
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8231352

Turbine blade rail damper
patent, July 2016

Miller, Jeff; Grota, Steven
US Patent Document 9,399,920
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9399920

Internally Damped Airfoiled Component and Method
patent-application, March 2016

Blaney, Ken F.; Hayford, Richard K.
US Patent Application 14/785119; 20160084089
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160084089

Friction damper for gas turbine engine blades
patent, February 1997

Elaini, Yehia; Meece, Carl E.
US Patent Document 5,599,165
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5599165

Blade System, and Corresponding Method of Manufacturing a Blade System
patent-application, April 2016

Batt, Stephen; McKenna, Mike
US Patent Application 14/889701; 20160108737
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160108737

Apparatus for passive damping of flexural blade vibration in turbo-machinery
patent, August 2003

von Flotow, Andreas H.
US Patent Document 6,607,359
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6607359

Damping element for a wind turbine rotor blade
patent, October 2010

Bonnet, Laurent
US Patent Document 7,811,063
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7811063

Blade baffle damper
patent, June 1976

Corsmeier, Robert J.
US Patent Document 3,966,357
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3966357

Method of forming an internal structure in a hollow component
patent, November 2013

Strother, Oliver M.; Goldfinch, Keith C.
US Patent Document 8,579,181
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8579181

Turbine Bucket Assembly and Turbine System
patent-application, December 2015

Davidson, Dwight Eric; Balsone, Stephen Joseph; Potter, Brian Denver
US Patent Application 14/290237; 20150345307
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20150345307

Turbine Bucket Assembly and Turbine System
patent-application, December 2015

Davidson, Dwight Eric; Potter, Brian Denver; Balsone, Stephen Joseph
US Patent Application 14/290295; 20150345309
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20150345309

Damping systems for vibrating members
patent, May 2001

Fricke, J. Robert
US Patent Document 6,224,341
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6224341

Vibration Damper For Blading In Elastic Fluid Apparatus
patent, May 1961

Heymann, Frank J.
US Patent Document 2984453 A
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2984453

Turbine blade rail damper
patent, February 2015

Miller, Jeff; Grota, Steven
US Patent Document 8,951,013
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8951013

Midspan shrouded turbine rotor blades
patent, May 2019

McDufford, Michael David
US Patent Document 10,287,895
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/10287895

Internally-damped airfoil and method therefor
patent, May 2012

Cairo, Ronald Ralph
US Patent Document 8,172,541
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8172541

Vibration damper assembly
patent, December 2013

Miller, David Paul
US Patent Document 8,596,980
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8596980

Hollow component with internal damping
patent, December 2005

Motherwell, Andrew
US Patent Document 6,979,180
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6979180

Shrouded turbine rotor blades
patent, March 2019

McDufford, Michael David; Kottilingam, Srikanth Chandrudu
US Patent Document 10,221,699
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/10221699

Vibration Damper for Blades and Vanes
patent, September 1954

Odeguard, Eugene A.
US Patent Document 2,689,107
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2689107

Blades for Fluid Flow Machines
patent, April 1971

Beanland, Michael Hargreaves; Wilson, Michael Anthony
US Patent Document 3576377
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3576377

Blades and Damper Sleeves for a Rotor Assembly
patent-application, September 2018

Deallenbach, Robert Edward; Ligos, John James; Frutschy, Kristopher John
US Patent Application 15/454388; 20180258775
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20180258775

Turbine blade having a constant thickness airfoil skin
patent, October 2012

Marra, John J.
US Patent Document 8,292,583
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8292583

Airfoil with break-way, free-floating damper member
patent, February 2016

Fisk, Benjamin T.; Propheter-Hinckley, Tracy A.; Dolansky, Gregory M.
US Patent Document 9,249,668
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9249668

Vibration dampening device disposed on a shroud member for a twisted turbine blade
patent, October 1976

Warner, Ronald E.
US Patent Document 3,986,792
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3986792

Damped airfoil blade
patent, November 1992

Stoner, Alan W.; El-Aini, Yehia M.; Wiebe, David J.
US Patent Document 5,165,860
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5165860

Component with internal damping
patent, July 2006

Powell, Christopher A.
US Patent Document 7,070,390
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7070390

Damper System and a Turbine
patent-application, January 2014

Kleinow, Chad Daniel
US Patent Application 13/656098; 20140023506
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140023506

Edgewise vibration control of wind turbine blades using roller and liquid dampers
journal, June 2014

Zhang, Z. L.; Nielsen, S. R. K.
Journal of Physics: Conference Series, Vol. 524
https://doi.org/10.1088/1742-6596/524/1/012037

Hollow Blade Having Internal Damper
patent-application, November 2016

Morris, Robert J.; Benedict, Barry K.
US Patent Application 15/038090; 20160319669 A1
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160319669

Airfoil tip shroud damper
patent, January 2012

El-Aini, Yehia M.; Montgomery, Stuart K.
US Patent Document 8,105,039
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8105039

Internally damped blades
patent, August 1993

El-Aini, Yehia M.
US Patent Document 5,232,344
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5232344

Rotor blade with a stick damper
patent, May 2007

Propheter, Tracy A.; Surace, Raymond
US Patent Document 7,217,093
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7217093

System and method for damping vibrations in a wind turbine
patent, February 2014

Rodríguez Tsouroukdissian, Arturo
US Patent Document 8,641,369
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8641369

Shrouded turbine rotor blades
patent, November 2018

McDufford, Michael David
US Patent Document 10,132,169
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/10132169

Turbine blade assembly with stranded wire cable dampers
patent, February 2004

Davis, Gary A.; Tuttle, Gary E.; Beatty, Robert
US Patent Document 6,685,435
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6685435

Damping Inserts and Methods for Shrouded Turbine Blades
patent-application, August 2018

Chakrabarti, Suryarghya; Potter, Brian; Grafitti, Andrew
US Patent Application 15/397176; 20180230818
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20180230818

Vibration Damping by Impact
patent, November 1931

Paget, Alan L.
US Patent Document 1833754
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/1833754

Continuous harmonic shrouding
patent, June 1983

Ortolano, Ralph J.
US Patent Document 4,386,887
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4386887

Apparatus for tying moving blades
patent, November 1976

Imai, Tetsu; Ikeuchi, Kazuo
US Patent Document 3,990,813
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3990813

Gas Turbine Blade Damper Optimization Methodology
journal, April 2012

Giridhar, R. K.; Ramaiah, P. V.; Krishnaiah, G.
Advances in Acoustics and Vibration, Vol. 2012
https://doi.org/10.1155/2012/316761

Aerofoil blade damper
patent, September 2001

Chin, Kevin
US Patent Document 6,283,707
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6283707

Tubular elastomer damper
patent, September 1995

Byrnes, Francis E.; Cullen, III, Lawrence I.
US Patent Document 5,449,152
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5449152

Internally damped blade
patent, June 2011

El-Aini, Yehia M.; Morris, Robert J.
US Patent Document 7,955,054
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7955054

Turbine blade tip shroud enclosed friction damper
patent, April 2002

Stangeland, Maynard L.; Bampton, Clifford C.
US Patent Document 6,371,727
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6371727

Damped Aerofoil Structure
patent-application, December 2004

Williams, David A.; Powell, Christopher A.
US Patent Application 10/830118; 20040253115
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040253115

Wind Energy Installation
patent-application, May 2007

Stommel, Matthias
US Patent Application 11/554316; 20070110578
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070110578

Turbine bucket having part-span connector and profile
patent, February 2019

Bielek, Craig Allen; Aaron, Kelvin Rono; McDufford, Michael David
US Patent Document 10,196,908
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/10196908

Dynamic Characteristics of Blade with Viscoelastic Damping Block Based on Complex Eigenvalue Method
journal, January 2018

Wang, Jiao; Zhang, Yue-hao; Yu, Tao
Shock and Vibration, Vol. 2018
https://doi.org/10.1155/2018/5068901

Vibration damper for rotating parts
patent, May 2016

Kellerer, Rudolf; Brandl, Herbert
US Patent Document 9,334,740
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9334740

Turbine blade mid-span shroud assembly
patent, February 2017

Spracher, David Randolph; Bruce, Kevin Leon; Harris, Jr., John Wesley
US Patent Document 9,574,450
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9574450

Damper configured turbine blade
patent, June 2010

Bauer, Randall Charles; Garay, Gregory Terrence; Weaver, Matthew Mark
US Patent Document 7,736,124
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7736124

Fluid damper and method of making
patent, January 2018

Blaney, Ken F.; Hayford, Richard K.
US Patent Document 9,879,551
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9879551

Snubber Configurations for Turbine Rotor Blades
patent-application, June 2015

Weber, Joseph Anthony; Jones, Mark Andrew
US Patent Application 14/136403; 20150176413
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20150176413

Turbine blade having midspan shroud with recessed wear pad and methods for manufacture
patent, May 2012

Riley, Shawn; Ozbaysal, Kazim; Wilson, Paul
US Patent Document 8,182,228
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8182228

Quick response particle damper for printed circuit boards and planar surfaces
patent, July 2018

Hart, Martin B.
US Patent Document 10,021,779
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/10021779

Turbine blade with vibration damper
patent, September 2007

Garner, Chad
US Patent Document 7,270,517
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7270517

Damping arrangement for a blade of an axial turbine
patent, November 2007

Masserey, Pierre-Alain; Szwedowicz, Dariusz; Szwedowicz, Jaroslaw Leszek
US Patent Document 7,300,256
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7300256

Turbine blade mid-span shroud
patent, March 2017

Collins, Daryl R.; Butz, David
US Patent Document 9,587,496
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9587496

Turbine engine rotor blade vibration damping device
patent, March 1996

El-Aini, Yehia M.; Burge, Joseph C.; Meece, Carl E.
US Patent Document 5,498,137
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5498137

Turbine blade with tuned damping structure
patent, September 2015

Campbell, Christian X.; Messmann, Stephen John
US Patent Document 9,121,288
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9121288

Panel damped hybrid blade
patent, March 2000

Schilling, Jan Christopher; Cornell, Jay L.; Stevenson, Joseph T.
US Patent Document 6,039,542
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6039542

Mass impact damper for rotors
patent, June 1993

Fox, Allen E.; Klusman, Steven A.; Nale, Timothy A.
US Patent Document 5,219,144
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5219144

Turbine engine damper
patent, February 2003

Lewis, Thomas M.; Jones, David I. G.
US Patent Document 6,514,040
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6514040

Vibration damped rotor blades for turbomachines
patent, July 1984

Fuller, John R. C.
US Patent Document 4,460,314
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4460314

Mitigation of edgewise vibrations in wind turbine blades by means of roller dampers
journal, October 2014

Zhang, Zili; Li, Jie; Nielsen, Søren R. K.
Journal of Sound and Vibration, Vol. 333, Issue 21
https://doi.org/10.1016/j.jsv.2014.06.006

Damping means for hollow stator vane airfoils
patent, April 1995

Rimkunas, Donald A.; Lewis, David
US Patent Document 5,407,321
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5407321

Magnetic device for damping blade vibrations in turbomachines
patent, October 2013

Richter, Christoph
US Patent Document 8,568,088
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8568088

Turbomachine blade
patent, December 2003

Norris, Jennifer M.; Knott, David S.; Jones, Adrian
US Patent Document 6,669,447
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6669447

Bimaterial turbine blade damper
patent, November 2010

Bauer, Randall Charles; Patrick, D. Keith
US Patent Document 7,824,158
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7824158

Gas turbine engine airfoil damper and method for production
patent, December 2000

Mannava, Seetharamaiah; Cowie, William D.; Yeaton, Robert L.
US Patent Document 6,155,789
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6155789

Split blade frictional damper
patent, June 2004

Miller, Jeff H.; Davis, Gary A.
US Patent Document 6,752,594
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6752594

Vibration Dampener
patent, May 1944

Meyer, Charles A.
US Patent Document 2349187
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2349187

Fan Blade Damping Device
patent-application, January 2016

Wilber, John E.
US Patent Application 14/768586; 20160024940
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160024940

Self-tuning impact damper for rotating blades
patent, December 2004

Duffy, Kirsten P.; Brown, Geoffrey; Bagley, Ronald L.
US Patent Document 6,827,551
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6827551

High-temperature component for a turbomachine, and a turbomachine
patent, March 2008

Kayser, Andreas; Wolter, Ivo
US Patent Document 7,347,664
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7347664

Additive Manufacturing Process Grown Integrated Torsional Damper Mechanism in Gas Turbine Engine Blade
patent-application, November 2016

Twelves, Jr., Wendell V.; Propheter-Hinckley, Tracy A.; Cabrilla, Pauline
US Patent Application 15/112,032; 2016/0341221 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160341221

Trapped insert turbine airfoil
patent, February 2001

Liotta, Gary Charles; Acquaviva, Paul J.; Fleck, James N.
US Patent Document 6,193,465
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6193465

Damping arrangement for a blade of an axial turbine
patent-application, November 2007

Masserey, Pierre-Alain; Szwedowicz, Dariusz; Szwedowicz, Jaroslaw
US Patent Application 10/997885; 20070253828
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070253828

Similar Records in DOE Patents and OSTI.GOV collections:

Turbine blade with tuned damping structure

Patent Campbell, Christian X.; Messmann, Stephen J.

A turbine blade is provided comprising: a root; an airfoil comprising an external wall extending radially from the root and having a radially outermost portion; and a damping structure. The external wall may comprise first and second side walls joined together to define an inner cavity of the airfoil. The damping structure may be positioned within the airfoil inner cavity and coupled to the airfoil so as to define a tuned mass damper.
Full Text Available
Pressurized damping fluid injection for damping turbine blade vibration

Patent Delvaux, John McConnell; Lang, Claire Fridtjof; Chakrabarti, Suryarghya

A blade vibration damping system impacts a pressurized damping fluid on a surface of at least one of a plurality of blades of a turbine in opposition to a vibratory movement thereof to cause damping of vibration of the blade(s) during operation of the turbine. The system includes a fluid injection nozzle in a stationary component adjacent the plurality of blades. A valve selectively admits the pressurized damping fluid to the fluid injection nozzle from a source of pressurized damping fluid, and a control system controls the valve to operate the fluid injection nozzle in response to an operational parametermore » « less
Full Text Available
Rotor blades for turbine engines

Patent Piersall, Matthew R; Potter, Brian D

A tip shroud that includes a plurality of damping fins, each damping fin including a substantially non-radially-aligned surface that is configured to make contact with a tip shroud of a neighboring rotor blade. At least one damping fin may include a leading edge damping fin and at least one damping fin may include a trailing edge damping fin. The leading edge damping fin may be configured to correspond to the trailing edge damping fin.
Full Text Available
Multiple piece turbine rotor blade

Patent Kimmel, Keith D.; Plank, William L.

A spar and shell turbine rotor blade with a spar and a tip cap formed as a single piece, the spar includes a bottom end with dovetail or fir tree slots that engage with slots on a top end of a root section, and a platform includes an opening on a top surface for insertion of the spar in which a shell made from an exotic high temperature resistant material is secured between the tip cap and the platform. The spar is tapered to form thinner walls at the tip end to further reduce the weight and therefore a pullingmore » « less
Full Text Available
Rotor blade assembly having internal loading features

Patent Soloway, Daniel David

Rotor blade assemblies and wind turbines are provided. A rotor blade assembly includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge and a trailing edge each extending between a tip and a root, the rotor blade defining a span and a chord, the exterior surfaces defining an interior of the rotor blade. The rotor blade assembly further includes a loading assembly, the loading assembly including a weight disposed within the interior and movable generally along the span of the rotor blade, the weight connected to a rotor blade component such that movementmore » « less
Full Text Available

Similar Records

Title: Rotor blade damping structures

Abstract

Citation Formats

Lightweight Composite Truss Wind Turbine Blade patent-application, September 2007

Damping element for reducing the vibration of an airfoil patent, November 2013

Hollow blade having internal damper patent, June 2019

Monolithic and bi-metallic turbine blade dampers and method of manufacture patent, September 2012

Bipedal damper turbine blade patent, August 2008

Rotor of a steam or gas turbine patent, September 2006

Turbine blade damping patent, July 1975

Articles having damping coatings thereon patent, April 2015

Vibration damping patent, March 1998

Turbine Bucket Assembly and Turbine System patent-application, December 2015

Friction damper for gas turbine engine blades patent, June 1996

Component with Internal Damping patent-application, March 2005

Vibration damper assembly patent, July 2012

Turbine blade rail damper patent, July 2016

Internally Damped Airfoiled Component and Method patent-application, March 2016

Friction damper for gas turbine engine blades patent, February 1997

Blade System, and Corresponding Method of Manufacturing a Blade System patent-application, April 2016

Apparatus for passive damping of flexural blade vibration in turbo-machinery patent, August 2003

Damping element for a wind turbine rotor blade patent, October 2010

Blade baffle damper patent, June 1976

Method of forming an internal structure in a hollow component patent, November 2013

Turbine Bucket Assembly and Turbine System patent-application, December 2015

Turbine Bucket Assembly and Turbine System patent-application, December 2015

Damping systems for vibrating members patent, May 2001

Vibration Damper For Blading In Elastic Fluid Apparatus patent, May 1961

Turbine blade rail damper patent, February 2015

Midspan shrouded turbine rotor blades patent, May 2019

Internally-damped airfoil and method therefor patent, May 2012

Vibration damper assembly patent, December 2013

Hollow component with internal damping patent, December 2005

Shrouded turbine rotor blades patent, March 2019

Vibration Damper for Blades and Vanes patent, September 1954

Blades for Fluid Flow Machines patent, April 1971

Blades and Damper Sleeves for a Rotor Assembly patent-application, September 2018

Turbine blade having a constant thickness airfoil skin patent, October 2012

Airfoil with break-way, free-floating damper member patent, February 2016

Vibration dampening device disposed on a shroud member for a twisted turbine blade patent, October 1976

Damped airfoil blade patent, November 1992

Component with internal damping patent, July 2006

Damper System and a Turbine patent-application, January 2014

Edgewise vibration control of wind turbine blades using roller and liquid dampers journal, June 2014

Hollow Blade Having Internal Damper patent-application, November 2016

Airfoil tip shroud damper patent, January 2012

Internally damped blades patent, August 1993

Rotor blade with a stick damper patent, May 2007

System and method for damping vibrations in a wind turbine patent, February 2014

Shrouded turbine rotor blades patent, November 2018

Turbine blade assembly with stranded wire cable dampers patent, February 2004

Damping Inserts and Methods for Shrouded Turbine Blades patent-application, August 2018

Vibration Damping by Impact patent, November 1931

Continuous harmonic shrouding patent, June 1983

Apparatus for tying moving blades patent, November 1976

Gas Turbine Blade Damper Optimization Methodology journal, April 2012

Aerofoil blade damper patent, September 2001

Tubular elastomer damper patent, September 1995

Internally damped blade patent, June 2011

Turbine blade tip shroud enclosed friction damper patent, April 2002

Damped Aerofoil Structure patent-application, December 2004

Wind Energy Installation patent-application, May 2007

Turbine bucket having part-span connector and profile patent, February 2019

Dynamic Characteristics of Blade with Viscoelastic Damping Block Based on Complex Eigenvalue Method journal, January 2018

Vibration damper for rotating parts patent, May 2016

Turbine blade mid-span shroud assembly patent, February 2017

Damper configured turbine blade patent, June 2010

Fluid damper and method of making patent, January 2018

Snubber Configurations for Turbine Rotor Blades patent-application, June 2015

Turbine blade having midspan shroud with recessed wear pad and methods for manufacture patent, May 2012

Quick response particle damper for printed circuit boards and planar surfaces patent, July 2018

Turbine blade with vibration damper patent, September 2007

Damping arrangement for a blade of an axial turbine patent, November 2007

Turbine blade mid-span shroud patent, March 2017

Turbine engine rotor blade vibration damping device patent, March 1996

Turbine blade with tuned damping structure patent, September 2015

Panel damped hybrid blade patent, March 2000

Mass impact damper for rotors patent, June 1993

Turbine engine damper patent, February 2003

Vibration damped rotor blades for turbomachines patent, July 1984

Lightweight Composite Truss Wind Turbine Blade
patent-application, September 2007

Damping element for reducing the vibration of an airfoil
patent, November 2013

Hollow blade having internal damper
patent, June 2019

Monolithic and bi-metallic turbine blade dampers and method of manufacture
patent, September 2012

Bipedal damper turbine blade
patent, August 2008

Rotor of a steam or gas turbine
patent, September 2006

Turbine blade damping
patent, July 1975

Articles having damping coatings thereon
patent, April 2015

Vibration damping
patent, March 1998

Turbine Bucket Assembly and Turbine System
patent-application, December 2015

Friction damper for gas turbine engine blades
patent, June 1996

Component with Internal Damping
patent-application, March 2005

Vibration damper assembly
patent, July 2012

Turbine blade rail damper
patent, July 2016

Internally Damped Airfoiled Component and Method
patent-application, March 2016

Friction damper for gas turbine engine blades
patent, February 1997

Blade System, and Corresponding Method of Manufacturing a Blade System
patent-application, April 2016

Apparatus for passive damping of flexural blade vibration in turbo-machinery
patent, August 2003

Damping element for a wind turbine rotor blade
patent, October 2010

Blade baffle damper
patent, June 1976

Method of forming an internal structure in a hollow component
patent, November 2013

Turbine Bucket Assembly and Turbine System
patent-application, December 2015

Turbine Bucket Assembly and Turbine System
patent-application, December 2015

Damping systems for vibrating members
patent, May 2001

Vibration Damper For Blading In Elastic Fluid Apparatus
patent, May 1961

Turbine blade rail damper
patent, February 2015

Midspan shrouded turbine rotor blades
patent, May 2019

Internally-damped airfoil and method therefor
patent, May 2012

Vibration damper assembly
patent, December 2013

Hollow component with internal damping
patent, December 2005

Shrouded turbine rotor blades
patent, March 2019

Vibration Damper for Blades and Vanes
patent, September 1954

Blades for Fluid Flow Machines
patent, April 1971

Blades and Damper Sleeves for a Rotor Assembly
patent-application, September 2018

Turbine blade having a constant thickness airfoil skin
patent, October 2012

Airfoil with break-way, free-floating damper member
patent, February 2016

Vibration dampening device disposed on a shroud member for a twisted turbine blade
patent, October 1976

Damped airfoil blade
patent, November 1992

Component with internal damping
patent, July 2006

Damper System and a Turbine
patent-application, January 2014

Edgewise vibration control of wind turbine blades using roller and liquid dampers
journal, June 2014

Hollow Blade Having Internal Damper
patent-application, November 2016

Airfoil tip shroud damper
patent, January 2012

Internally damped blades
patent, August 1993

Rotor blade with a stick damper
patent, May 2007

System and method for damping vibrations in a wind turbine
patent, February 2014

Shrouded turbine rotor blades
patent, November 2018

Turbine blade assembly with stranded wire cable dampers
patent, February 2004

Damping Inserts and Methods for Shrouded Turbine Blades
patent-application, August 2018

Vibration Damping by Impact
patent, November 1931

Continuous harmonic shrouding
patent, June 1983

Apparatus for tying moving blades
patent, November 1976

Gas Turbine Blade Damper Optimization Methodology
journal, April 2012

Aerofoil blade damper
patent, September 2001

Tubular elastomer damper
patent, September 1995

Internally damped blade
patent, June 2011

Turbine blade tip shroud enclosed friction damper
patent, April 2002

Damped Aerofoil Structure
patent-application, December 2004

Wind Energy Installation
patent-application, May 2007

Turbine bucket having part-span connector and profile
patent, February 2019

Dynamic Characteristics of Blade with Viscoelastic Damping Block Based on Complex Eigenvalue Method
journal, January 2018

Vibration damper for rotating parts
patent, May 2016

Turbine blade mid-span shroud assembly
patent, February 2017

Damper configured turbine blade
patent, June 2010

Fluid damper and method of making
patent, January 2018

Snubber Configurations for Turbine Rotor Blades
patent-application, June 2015

Turbine blade having midspan shroud with recessed wear pad and methods for manufacture
patent, May 2012

Quick response particle damper for printed circuit boards and planar surfaces
patent, July 2018

Turbine blade with vibration damper
patent, September 2007

Damping arrangement for a blade of an axial turbine
patent, November 2007

Turbine blade mid-span shroud
patent, March 2017

Turbine engine rotor blade vibration damping device
patent, March 1996

Turbine blade with tuned damping structure
patent, September 2015

Panel damped hybrid blade
patent, March 2000

Mass impact damper for rotors
patent, June 1993

Turbine engine damper
patent, February 2003

Vibration damped rotor blades for turbomachines
patent, July 1984

Mitigation of edgewise vibrations in wind turbine blades by means of roller dampers
journal, October 2014

Damping means for hollow stator vane airfoils
patent, April 1995

Magnetic device for damping blade vibrations in turbomachines
patent, October 2013