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특허 상세정보

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Neural net controller for noise and vibration reduction

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G05B-013/02   
미국특허분류(USC) 706/023
출원번호 US-0752180 (2000-12-29)
발명자 / 주소
  • Antonios N. Kotoulas
  • Charles Berezin
  • Michael S. Torok
  • Peter F. Lorber
출원인 / 주소
  • General Dynamics Advanced Technology Systems, Inc.
대리인 / 주소
    Moore & Van Allen PLLC
인용정보 피인용 횟수 : 39  인용 특허 : 30
초록
▼

Two neural networks are used to control adaptively a vibration and noise-producing plant. The first neural network, the emulator, models the complex, nonlinear output of the plant with respect to certain controls and stimuli applied to the plant. The second neural network, the controller, calculates a control signal which affects the vibration and noise producing characteristics of the plant. By using the emulator model to calculate the nonlinear plant gradient, the controller matrix coefficients can be adapted by backpropagation of the plant gradient to...

대표
청구항
▼

1. A system for actively controlling noise and vibration produced by the flow of a fluid over a surface as measured by a plurality of noise and vibration sensors by altering the flow of the fluid, said system comprising:a plant comprising at least a portion of a plurality of mechanical equipment involved in producing and measuring the noise and vibration; a preprocessing filtering module which isolates and quantifies the signals from the sensors at least one of which signals represent the measured noise and vibration desired to be controlled; means for m...

이 특허에 인용된 특허 (30)

  1. Eriksson Larry J. (Madison WI), Active attenuation system with on-line modeling of speaker, error path and feedback pack.
  2. Pal Chinmoy (Yokohama JPX) Hagiwara Ichiro (Kamakura JPX), Active control system.
  3. Andersson Anders O. (Seattle WA), Active control system and method for reducing engine noise and vibration.
  4. Bozich Daniel J. (San Diego CA) Wagenfeld Robert (Westport CT), Active gas turbine (jet) engine noise suppression.
  5. Shimode Shin′ichi (Ibaraki JPX) Inouye Hiroshi (Ibaraki JPX) Saho Norihide (Tsuchiura JPX) Okabe Shinya (Shimizu JPX) Otsuka Masayuki (Katsuta JPX) Iwase Yukiji (Ushiku JPX) Yamamoto Etsuji (Akishim, Active noise cancellation apparatus in MRI apparatus.
  6. Shoureshi Rahmat A., Active vibration control method and apparatus.
  7. Popovich Steven R. (Stoughton WI), Adaptive control system with a corrected-phase filtered error update.
  8. Magliozzi Bernard (West Suffield CT), Adaptive synchrophaser for reducing aircraft cabin noise and vibration.
  9. Fuller Christopher R. (312 Reynolds St. Apt. 3 Blacksburg VA 24060), Apparatus and method for global noise reduction.
  10. Charles Bruce D. (Mesa AZ) Hassan Ahmed A. (Mesa AZ) Tadghighi Hormoz (Gilbert AZ) JanakiRam Ram D. (Mesa AZ) Sankar Lakshmi N. (Atlanta GA), Blade vortex interaction noise reduction techniques for a rotorcraft.
  11. Charles Bruce D. ; Hassan Ahmed A. ; Tadghighi Hormoz ; JanakiRam Ram D. ; Sankar Lakshmi N., Blade vortex interaction noise reduction techniques for a rotorcraft.
  12. Nakajima Masaaki (Hitachi JPX) Hattori Satoshi (Hitachi JPX) Saito Yutaka (Hitachi JPX) Katayama Yasunori (Mito JPX) Morooka Yasuo (Hitachi JPX) Kawakami Junzo (Mito JPX), Control device for controlling a controlled apparatus, and a control method therefor.
  13. Yoerkie ; Jr. Charles A. (Newington CT) Welsh William A. (North Haven CT) Sheehy Thomas W. (Hamden CT), Helicopter active noise control system.
  14. Ikeda Minoru (526-3 Ohishi-machi Kurume-shi ; Fukuoka-ken JPX), Helicopter having rotors equipped with flaps.
  15. Yamakawa Eiichi (Kakamigahara JPX) Kobiki Noboru (Kakamigahara JPX) Shima Eiji (Kakamigahara JPX), Helicopter rotor equipped with flaps.
  16. Gunsallus Clifford T. (North Canton CT), Helicopter with leading edge servo flaps for pitch positioning its rotor blades.
  17. Tiernan Timothy A. (Livonia MI) Geddes Earl R. (Livonia MI) Mollon Mark L. (Livonia MI), Integrated active vibration cancellation and machine diagnostic system.
  18. Katz Richard A. (East Lyme CT), Method and system for identifying the onset of a turbulent boundary layer induced by a body moving through a fluid mediu.
  19. Katz Richard A. (East Lyme CT), Method and system for reducing drag on a body moving through a fluid medium.
  20. Katz Richard A. (East Lyme CT), Method and system for suppressing noise induced in a fluid medium by a body moving therethrough.
  21. Magliozzi Bernard (West Suffield CT) Metzger Frederick B. (Simsbury CT), Method for reducing aircraft cabin noise and vibration.
  22. Aoki Masato (Ibaraki JPX) Okumura Shigeharu (Higashiosaka JPX) Suzuki Motomitsu (Mino JPX) Chikira Kyoji (Takatsuki JPX) Okada Toshiyuki (Kobe JPX) Sasaki Katsuya (Hirakata JPX) Nakamura Yoichiro (Su, Mold vibrating apparatus in continuous casting equipment.
  23. Bozich Daniel J. (San Diego CA) MacKay H. Bruce (San Diego CA) Eggert Jay A. (San Diego CA) Muenchau Ernest E. (Vista CA), Neurocontrolled adaptive process control system.
  24. Bozich Daniel J. (San Diego CA) MacKay H. Bruce (San Diego CA) Eggert Jay A. (San Diego CA) Muenchau Ernest E. (Vista CA), Neurocontrolled adaptive process control system.
  25. Kaptein Dick (Alphen A/D Rijn NLX), Propeller blade position controller.
  26. Matsuka David G. (Huntington CT) Gronenthal Edward W. (Shelton CT) Moffitt Robert C. (Seymour CT), Rotor system having alternating length rotor blades and positioning means therefor for reducing blade-vortex interaction.
  27. Moffitt Robert C. ; Matuska David G. ; Fradenburgh Evan A., Rotor system having alternating length rotor blades and positioning means therefor for reducing blade-vortex interaction.
  28. Succi George P. (Cambridge MA), System and method for suppressing noise produced by rotors.
  29. Reed ; III Wilmer H. (Hampton VA), System for controlling higher harmonic vibrations in helicopter rotor blades.
  30. Cheng Jie ; LaCrosse Stephanie Mary ; Tascillo Anya Lynn ; Newman ; Jr. Charles Edward ; Davis George Carver, Virtual vehicle sensors based on neural networks trained using data generated by simulation models.

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  1. Jongsma,Jonathon Michael; Huisenga,Garrie David, Analog-to-digital converter with range error detection.
  2. Kosek, Daniel A.; Maher, Robert Crawford, Audio spectral noise reduction method and apparatus.
  3. Schumacher, Mark S.; Eryurek, Evren, Automatic field device service adviser.
  4. Mutschler, Peter; Noell, Matthias, Compensation of cylinder vibration in printing material processing machines.
  5. Longsdorf, Randy J.; Nelson, Scott D.; Davis, Dale S.; Nelson, Richard L.; Johnson, Amy K.; Brown, Gregory C., Dedicated process diagnostic device.
  6. Rud, Jason H., Degrading sensor detection implemented within a transmitter.
  7. Brown, Gregory C.; Schumacher, Mark S., Diagnostics of impulse piping in an industrial process.
  8. Huisenga, Garrie D.; Lewis, Richard A.; Lattimer, Donald R., Field device for digital process control loop diagnostics.
  9. Wehrs, David L.; Eryurek, Evren, Flow measurement diagnostics.
  10. Hedtke, Robert C., Industrial process device utilizing piezoelectric transducer.
  11. Hedtke, Robert C., Industrial process device utilizing piezoelectric transducer.
  12. Hedtke, Robert C.; Broden, David A.; Lu, Liang-Ju, Industrial process power scavenging device and method of deriving process device power from an industrial process.
  13. Elke, Anthony Michael, Industrial process temperature transmitter with sensor stress diagnostics.
  14. Graber, William F.; Foss, Scot R.; Schulz, Robert K., Magnetic flowmeter with verification.
  15. Luo, Huageng; Turnquist, Norman Arnold; Imam, Imdad, Method and apparatus for rotary machine vibration control.
  16. Pauly,Bernard, Method making it possible to prevent vibration of a rudder of an aircraft and aircraft using this method.
  17. Aubourg,Pierre Antoine, Method of adjusting at least one defective rotor of a rotorcraft.
  18. Wiseman, Matthew William, Methods and apparatus for assessing gas turbine engine damage.
  19. Luo, Jia, Multi-axis trim processing.
  20. Russell, III, Alden C.; Harris, Stuart A.; Peluso, Marcos; Borgeson, Dale W., Multi-protocol field device interface with automatic bus detection.
  21. Kotoulas, Antonios N.; Berezin, Charles; Torok, Michael S.; Lorber, Peter F., Neural net controller for noise and vibration reduction.
  22. Eryurek,Evren; Kavaklioglu,Kadir, Pressure transmitter with diagnostics.
  23. Hedtke, Robert C.; Broden, David A., Process connection for process diagnostics.
  24. Longsdorf, Randy J.; Blumeyer, Chad C., Process device with vibration based diagnostics.
  25. Rud, Jason Harold; Engelstad, Loren Michael, Process variable measurement noise diagnostic.
  26. Sittler, Fred C.; Hedtke, Robert C., Process variable transmitter with acceleration sensor.
  27. Beckman, Brian C.; Ko, Allan, Reconfiguring propellers during aerial vehicle operation.
  28. Supino, Louis; Bernett, Frank W., Regulating tuning rate of adaptive filter coefficients for feed-forward disturbance rejection in a servo control loop.
  29. Fioravanti, Louis J.; Pottebaum, Kenneth L.; Foster, Michael P.; Almgren, Glen D., Relation of rotational vibration stimuli to performance of a hard disc drive.
  30. Miller, John P.; Eryurek, Evren, Rule set for root cause diagnostics.
  31. Heverly, II, David E.; Singh, Rupinder; Pappas, John, System and method for vibration control in a rotorcraft using an adaptive reference model algorithm.
  32. Welsh,William Arthur; MacMartin,Douglas G.; Finn,Alan M., System for computationally efficient active control of tonal sound or vibration.
  33. Muramatsu, Hironori; Sugitani, Yukinobu, System for monitoring sensor outputs of a gas turbine engine.
  34. Muramatsu, Hironori; Sugitani, Yukinobu, System for monitoring sensor outputs of a gas turbine engine.
  35. Preus, Robert W., System for providing dynamic pitch control in a wind turbine.
  36. Huisenga,Garrie D.; Longsdorf,Randy J.; Lattimer,Donald R., Two-wire process control loop diagnostics.
  37. Grabowski, Zbigniew M.; Morris, Robert J.; Carmichael, Ray W., Variable area fan nozzle fan flutter management system.
  38. Saeed, Muhammad Omer Bin; Zerguine, Azzedine, Variable step-size least mean square method for estimation in adaptive networks.
  39. Horiuchi, Toshihiko; Kurihara, Masaki; Hamada, Tomoyuki; Konno, Takao, Vibration testing system.

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