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특허 상세정보

Damping system for vibrating members

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01D-005/10    S01D-005/26   
미국특허분류(USC) 416/248 ; 416/500 ; 464/180 ; 188/268 ; 188/378 ; 74/574
출원번호 US-0731251 (1996-10-11)
발명자 / 주소
대리인 / 주소
    Hamilton, Brook, Smith & Reynolds, P.C.
인용정보 피인용 횟수 : 45  인용 특허 : 30
초록

The following relates to the use of low-density granular fill with a specific gravity less than 1.5, placed in hollow cavities built into turbomachinery blades, vanes, and shafts. The granular fill provides effective damping at lower frequencies than conventional passive damping treatment due to its low bulk compressional sound speed. Selected materials used for the granular fill treatment are chosen for specific turbomachinery needs, including temperature of operation. Rotation speed is also a factor because it induces on the granular material an appare...

대표
청구항

[ What is claimed is:] [28.] A vibration damped system comprising:a plurality of rotating gas turbine blades, each blade having a cavity; anda low-density granular material having a specific gravity of less than 1.5 and positioned within the cavity, the granular material damping vibrations of the blades.

이 특허에 인용된 특허 (30)

  1. Cushman William B. (Pensacola FL) Thomas Gerald B. (Pensacola FL). Acoustic attenuation and vibration damping materials. USP1995035400296.
  2. Novoa Fernando (Luis Zegers 303 Santiago CLX). Auxiliary mass damper for slender flexible element subject to vibration. USP1991065020644.
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  4. Kunst Franz D. (41 Toseland Drive ; Roseland Park Estate ; Paignton Devon GBX TQ4 7DS) Payne Arthur F. (Two Hoots ; White Hill Close ; Exeter Road ; Newton Abbot ; Devon GBX T12 6QY) Wilkinson Paul A. Ceramic material. USP1993015177036.
  5. Verpoort Clemens (Fislisbach CHX). Composite gas turbine blade and method of manufacturing same. USP1989094869645.
  6. Roberts Michael C. (Bristol GB2). Device for damping vibrations in turbomachinery blades. USP1991105052890.
  7. Taslim Mohammad E. (Needham MA) Spring Samuel D. (Stratham NH) Demarche Thomas E. (Boxford MA). Enhanced cooling apparatus for gas turbine engine airfoils. USP1995125472316.
  8. Chlus Wieslaw A. (Wethersfield CT) Gonsor Michael (Hebron CT) Houston David P. (Glastonbury CT) Kudra Paul D. (Glastonbury CT). Gas turbine blade damper. USP1994055313786.
  9. Chlus Wieslaw A. (Wethersfield CT). Gas turbine blade seal. USP1993075228835.
  10. Crane Roger M. (Arnold MD). High damping flexible propeller/impleller. USP1992045108262.
  11. Kohan Barry A. (5024 Beckley Ave. Woodland Hills CA 91364). Isolation platform and method. USP1993035197707.
  12. Muntner Michael S. (Killingworth CT) Perron James S. (Madison CT). Laser machining of ceramic cores. USP1995115465780.
  13. Sato Taichi (Ishioka JPX) Mohri Yoshiharu (Ibaraki JPX) Tanaka Kihachiro (Ushiku JPX) Honmei Takao (Katsuta JPX) Otsuka Masayuki (Katsuta JPX) Wada Masashi (Hitachi JPX). Magnetic resonance imaging apparatus having vibration damping means on gradient coil. USP1994095345177.
  14. Mizek Robert S. (1119 Westchester Blvd. Westchester IL 60154). Noise and recoil reducing bow stabilizer for archery bows. USP1991055016602.
  15. Pigott Ronald (Aston PA). Pinned root turbine blade providing maximum friction damping. USP1979014135849.
  16. McGuire Dennis P. (Erie PA). Propeller assembly. USP1976123999887.
  17. Dietz Philip W. (Cincinnati OH) Staker John R. (Cincinnati OH). Retention device for turbine blade damper. USP1993115261790.
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  19. Boolchand Punit (Cincinnati OH) Lemon George H. (Cincinnati OH) Bresser Wayne J. (Park Hills KY) Enzweiler Raymond N. (Fort Thomas KY) Harris Richard L. (Cincinnati OH). Substantially vibration-free shroud and mounting system for sample cooling and low temperature spectroscopy. USP1994075327733.
  20. Isburgh Anne M. (Loveland OH) Lee Ching-Pang (Cincinnati OH). Turbine airfoil with convectively cooled double shell outer wall. USP1996015484258.
  21. Dietz Philip W. (Cincinnati OH) Steckle Charles E. (Loveland OH) Corsmeier Robert J. (Cincinnati OH). Turbine blade damper. USP1994125369882.
  22. Dietz Philip W. (Cincinnati OH) Steckle Charles E. (Loveland OH) Corsmeier Robert J. (Cincinnati OH). Turbine blade damper. USP1994045302085.
  23. Nelson Charles J. (West Palm Beach FL). Turbine blade damper. USP1980014182598.
  24. Benjamin Robert B. (Windsor CT) Adams Betsy B. (Cambridge MA). Turbine blade damper and seal. USP1995105460489.
  25. Hendley David G. (Wyoming OH) Litzinger William A. (Cincinnati OH). Turbine blade plateform sealing and vibration damping apparatus. USP1989104872812.
  26. Steckle Charles E. (Loveland OH) Dietz Philip W. (Cincinnati OH) Willgoose Kenneth (West Chester OH). Turbine blade platform damper. USP1993065215442.
  27. Fuller ; deceased John R. D. (late of Bristol GB2 by Jean M. E. Fuller ; executrix). Vibration damped rotor blades for turbomachines. USP1984074460314.
  28. Warner Ronald E. (Media PA). Vibration dampening device disposed on a shroud member for a twisted turbine blade. USP1976103986792.
  29. Varsik David A. (Manchester CT). Vibration damping shroud for a turbomachine vane. USP1995055411370.
  30. Schucker Thomas R. (York PA). Vibration-dampened discharge ring for bulb hydraulic turbines. USP1984064453887.

이 특허를 인용한 특허 피인용횟수: 45

  1. Lewis, Thomas M.; Parin, Michael L.. Air-film vibration damping apparatus for windows. USP2013058439154.
  2. Lewis, Thomas M.; Parin, Michael L.. Air-film vibration damping apparatus for windows. USP2014108851423.
  3. Propheter-Hinckley, Tracy A.; Dolansky, Gregory M.; Fisk, Benjamin T.; Treen, Robert J.. Airfoil with powder damper. USP2015119181806.
  4. Pizzoni, Luciano; Perni, Federico. Ball screw shaft with increased vibration frequency and improved vibration dissipation. USP2004036708577.
  5. Vissman, Shannon; Cidral Filho, Francisco José; de Paula Moreira, Francisco; Midttun, Steven. Bioceramic compositions. USP20190410252945.
  6. Vissman, Shannon; Cidral-Filho, Francisco Jose; de Paula Moreira, Francisco; Midttun, Steven. Bioceramic compositions and biomodulatory uses thereof. USP2017129833509.
  7. Vissman, Shannon; Cidral-Filho, Francisco Jose; de Paula Moreira, Francisco; Midttun, Steven. Bioceramic compositions and biomodulatory uses thereof. USP2018059962441.
  8. Wygant, Karl. Blade assembly. USP20190210215029.
  9. Erno, Daniel Jason; Hedeen, Robert Arvin; Singh, Prabhjot. Components having vibration dampers enclosed therein and methods of forming such components. USP2018029903434.
  10. Haaser, Frederic G.; Bowen, Wayne R.; Dingwell, William T.; Even-Nur, Michael; Przytulski, James C.. Damped torque shaft assembly. USP2003046551057.
  11. Shen, Mo-How Herman. Damping method including a face-centered cubic ferromagnetic damping material, and components having same. USP20180710023951.
  12. Shen, Mo-How Herman. Damping method including a face-centered cubic ferromagnetic damping material, and components having same. USP20190210208374.
  13. Fricke J. Robert. Damping systems for vibrating members. USP2001056224341.
  14. Vecchio, Kenneth S.; Rohatgi, Aashish; Kosmatka, John. Designs and fabrication of structural armor. USP2009117621435.
  15. Vecchio, Kenneth S.; Rohatgi, Aashish; Kosmatka, John. Fabrication of structural armor. USP2011087992763.
  16. Shen, Mo-How Herman. High strain damping method including a face-centered cubic ferromagnetic damping coating, and components having same. USP2016109458534.
  17. Shen, Mo-How Herman. High strain damping method including a face-centered cubic ferromagnetic damping coating, and components having same. USP2017069683283.
  18. Kayser,Andreas; Wolter,Ivo. High-temperature component for a turbomachine, and a turbomachine. USP2008037347664.
  19. Best, Christopher B.. Iron club with captive third piece. USP2004026688989.
  20. Livingston, Tracy; Schrader, Terry; Goldhardt, James; Lott, James. Lifting system and apparatus for constructing wind turbine towers. USP2011027877934.
  21. Fricke J. Robert. Low sound speed damping materials and methods of use. USP2001056237302.
  22. Nash, Grant. Method and apparatus for reducing noise transmission through a window. USP2017059645120.
  23. Chivers, Nigel J.D.; Goldfinch, Keith C.. Method of manufacturing a rotor for a gas turbine engine that includes identifying the frequency response of the rotor and adjusting the frequency response by providing a pressure gradient within the rotor. USP2012078225506.
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  25. Josefczyk, Ronald John. Passive dynamic inertial rotor balance system for turbomachinery. USP2015038984940.
  26. Tadao Horiuchi JP; Nobuo Suzuki JP; Takashi Nagai JP. Reduced vibration fuel supply systems. USP2002046378504.
  27. Duffy, Kirsten P.; Brown, Gerald V.; Bagley, Ronald L.. Self-tuning impact damper for rotating blades. USP2004126827551.
  28. Rogers, Aaron S.; Yamoussa, Mahamadou. Sensors with vibration damping. USP2018059983031.
  29. Best, Christopher B.. Set of golf club irons. USP2004066743114.
  30. Best, Christopher B.. Set of golf club irons. USP2005026855066.
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  32. Oliphant, David; Andersen, Todd. Structural shape for wind tower members. USP2014128910446.
  33. Jamil I. Lahham ; Lloyd S. Sikes ; Stephen J. Ryan. Tunable vibration noise reducer with spherical element containing tracks. USP2002086435470.
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  36. Lewis, Thomas M.; Jones, David I. G.. Turbine engine damper. USP2003026514040.
  37. Stiehler, Frank; Hartung, Andreas. Turbomachine blade. USP2017129840916.
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  39. Meeuwsen, Gregory L. Vibration control for a variable speed cooling system. USP2017119817408.
  40. Negulescu, Ioana; Davison, Peter. Vibration damper. USP20181010100643.
  41. Kellerer, Rudolf; Brandl, Herbert. Vibration damper for rotating parts. USP2016059334740.
  42. Lewis, Thomas M.; Parin, Michael L.. Vibration damping apparatus for windows using viscoelastic damping materials. USP2010057721844.
  43. Lin, Juhn-Shyue; Hoffman, Herbert L.; Chewning, Gary R.; Kosanchick, III, Melvin; Poling, Hugh. Vibration damping for wing-to-body aircraft fairing. USP2012108292214.
  44. Southwick, Robert D.; Pascuitti, Joseph P.. Vibration management for gas turbine engines. USP2012088240120.
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