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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Method and apparatus for isolating and identifying periodic Doppler signals in a turbine

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01N-029/12   
미국특허분류(USC) 73/660 ; 364/508
출원번호 US-0234192 (1994-04-28)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 38  인용 특허 : 0
초록

An improved method and apparatus for detecting and identifying one or more resonantly vibrating blades of a turbine through the use of acoustic sensors imbedded in the stationary casing of the turbine is disclosed. The acoustic sensor signals are processed to separate the characteristic Doppler waveform from the accompanying random noise and periodic noise. Improved signal processing techniques which involve the evaluation of both an information-bearing resonant signal and its Hilbert transform via direct synthesis are disclosed.

대표
청구항
▼

An apparatus for detecting a resonantly vibrating blade in a row of blades secured to a shaft rotating about a rotor axis, in an operating turbine, comprising: an acoustic sensor positioned on a stationary member with respect to said shaft to receive sound waves emanating from said rotating blades as said blades rotate about said rotor axis and to provide an output signal representative said received sound waves, said acoustic sensor positioned with respect to said shaft so that said vibrating blade approaches and departs from said acoustic sensor in the...

이 특허를 인용한 특허 피인용횟수: 38

  1. Naudet, Jacky; Mary, Jean-Luc; Collot, Andre; Berthillier, Marc. Acoustic inspection of one-piece bladed wheels. USP2003106629463.
  2. Hatcher, Jr., Clifford; Ruhge, Forrest R.; Junkin, John E.; Kamphaus, Mark L.. Acoustic measurement system for detecting turbine blade lockup. USP2017049618384.
  3. Brooks, Richard V. Apparatus and method for detecting an impact on a rotor blade. USP2005086932560.
  4. Shvetsky Arkady. Apparatus and method for ultrasonic inspection of rotating machinery while the machinery is in operation. USP1999085942690.
  5. Boerhout,Johannes I.. Cyclic time averaging for machine monitoring. USP2007107289919.
  6. Kothare,Simone L.; Mandler,Jorge Anibal. Fast plant test for model-based control. USP2007037194317.
  7. O'Keefe, Christian; Maron, Robert J.; Fernald, Mark R.; Bailey, Timothy J.; Van der Spek, Alex; Davis, Michael A.; Viega, John V.. Flow and pipe management using velocity profile measurement and/or pipe wall thickness and wear monitoring. USP2016089404893.
  8. Griffin,Jerry H.; Feiner,Drew M.. Fundamental mistuning model for determining system properties and predicting vibratory response of bladed disks. USP2006077082371.
  9. Griffin,Jerry Howard; Feiner,Drew M.. Fundamental mistuning model for determining system properties and predicting vibratory response of bladed disks. USP2008067383136.
  10. Thompson, Michael J.; Finney, Dale S.. Generator protection element. USP2016119496707.
  11. O'Keefe, Christian Victor; Maron, Robert J.; Fernald, Mark R.; Bailey, Timothy J.; Van der Spek, Alex M.; Davis, Michael A.; Viega, John V.. Graphical user interface re wear monitoring. USP2016069366653.
  12. Hall, Richard M.; Das, Sreerupa. Mechanisms for deriving an accurate timing signal from a noisy waveform. USP2017119829502.
  13. Twerdochlib Michael. Method and apparatus for analyzing non-synchronous blade vibrations using unevenly spaced probes. USP2000086094989.
  14. Bonanni, Pierino Gianni. Method and apparatus for compressor control and operation via detection of stall precursors using frequency demodulation of acoustic signatures. USP2003036536284.
  15. Volkmer, Peter. Method and device for monitoring the state of rotor blades on wind power installations. USP2011027883319.
  16. King, Dennis; Astley, Ken; Tarassenko, Lionel; Anuzis, Paul; Hayton, Paul; King, Stephen. Method and system for analysing tachometer and vibration data from an apparatus having one or more rotary components. USP2010017640802.
  17. Pihlaja, Roger K.; Miller, John P.. Method and system for detecting abnormal operation in a stirred vessel. USP2010087778797.
  18. Leamy, Kevin Richard; Watson, Thomas Ulmont; Simpson, William Joseph; Myers, Jr., William Joseph. Method and system for monitoring bearings. USP2004036711952.
  19. Burns, Donald W.; Louie, John R.. Method for designing a cyclic symmetric structure. USP2003046542859.
  20. C. Samuel Ventres. Method for determining a minimal set of rotor blade adjustments. USP2002076415206.
  21. Koljonen Juha. Methods and apparatuses for in-line solder paste inspection. USP1999115982927.
  22. Penda, Allan R.; Urban, Justin R.. Monitoring a dynamic parameter such as torque in a rotational system. USP2018039909445.
  23. Gendrich, Charles P.. Monitoring one or more turbine engine rotor blades by correlating measurement data and reference data as a function of time. USP2016129512736.
  24. Inaji Toshio,JPX ; Ueda Eiji,JPX ; Matsuo Keisuke,JPX. Motor speed control apparatus for motors. USP1998045737483.
  25. Newman, John W.. Nondestructive acoustic doppler testing of wind turbine blades from the ground during operation. USP2016079395337.
  26. Bechhoefer,Eric Robert. Reducing vibration using QR decomposition and unconstrained optimization for a multi-rotor aircraft. USP2009037512463.
  27. Wong, Chon Meng; Wong, An-Kwok Ian; Wong, Belinda T.. System and method for active monitoring and diagnostics of life signs using heartbeat waveform and body temperature remotely giving the user freedom to move within its vicinity without wires attachment, gel, or adhesives. USP2010077760082.
  28. Walton, Andrew Mark. System and method for mitigating helicopter rotor blockage of communications systems. USP2016049306718.
  29. Cohen,Eric D.; Paduano,James D.. System and method for providing vibration detection in turbomachinery. USP2009037509862.
  30. Nicq, Geoffroy. System for acquiring a vibratory signal of a rotary motor. USP2017019551629.
  31. Kurtz, Anthony D.; Chivers, John; Epstein, Alan. System for detecting and compensating for aerodynamic instabilities in turbo-jet engines. USP2005036871487.
  32. Kurtz,Anthony D.; Chivers,John; Epstein,Alan. System for detecting and compensating for aerodynamic instabilities in turbo-jet engines. USP2007017159401.
  33. Boerhout, Johannes I.. Systems and methods for energy efficient machine condition monitoring of fans, motors, pumps, compressors and other equipment. USP2015038996335.
  34. Ammann, Luke John; Xu, Liming; Wassynger, Stephen; Pilson, Richard. Systems and methods for mode shape identification. USP2014048689634.
  35. Qian, Shie; Shao, Hui; Zhang, Nanxiong. Time varying harmonic analysis including determination of order components. USP2004106810341.
  36. Russhard, Peter; Back, Jason D.. Timing analysis. USP2016059341511.
  37. Chuang,Thomas H.. Vibration measurement apparatus and method. USP2006057043376.
  38. O'Keefe, Christian Victor; Maron, Robert J.; Fernald, Mark R.; Bailey, Timothy J.; Van der Spek, Alex M.; Davis, Michael A.; Viega, John V.. Wear monitoring with rotational sensor and sensor thickness. USP2016059335298.

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