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특허 상세정보

System and method for on-board determination of aircraft weight and load-related characteristics

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01G-019/08    G01G-019/14   
미국특허분류(USC) 701/037 ; 73/065.05 ; 177/136 ; 177/141 ; 702/101 ; 701/124
출원번호 US-0852855 (1997-05-06)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Baker Botts L.L.P.
인용정보 피인용 횟수 : 30  인용 특허 : 34
초록

An on-board aircraft system for determining the weight and load-related characteristics of an aircraft having landing gear struts (which each have a strut cylinder, a strut piston, and a working fluid in the strut cylinder) includes an accelerometer associated with each gear strut for measuring acceleration. The system further includes a pressure-adjustment means coupled to each strut cylinder for selectively adjusting the pressure in each strut cylinder to cause each landing gear strut to extend and retract; a plurality of pressure transducers coupled t...

대표
청구항

[ What is claimed is:] [11.] A method for determining weight on an aircraft gear strut having a strut cylinder with a working fluid and a strut piston, the method comprising the steps of: retracting and extending the strut;taking and storing strut cylinder pressure measurements during the retraction (P.sub.r) and extension (P.sub.e) of the strut;taking and storing acceleration measurements (a.sub.r and a.sub.e) corresponding to each pressure measurement taken; andcalculating the weight on the strut based on the pressure measurements and the acceleration ...

이 특허에 인용된 특허 (34)

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이 특허를 인용한 특허 피인용횟수: 30

  1. Lou, Ken-An. Actively variable shock absorbing strut and system. USP2014118886402.
  2. Nance,C. Kirk. Aircraft landing gear automated inspection and life limitation escalation system and method. USP2007037193530.
  3. Nance, C. Kirk. Aircraft landing gear automated inspection for presence of internal oxygen contamination. USP2013108565965.
  4. Nance, C. Kirk. Aircraft landing gear compression rate monitor. USP2011108042765.
  5. Nance, C. Kirk. Aircraft landing gear compression rate monitor and method to increase aircraft landing weight limitation. USP2012058180504.
  6. Luce, William E.. Aircraft shock strut having a fluid level monitor. USP2009067552803.
  7. Luce, William E.. Aircraft shock strut having a fluid level monitor. USP2014048695764.
  8. Luce, William E.. Aircraft shock strut having a fluid level monitor. USP2013098528400.
  9. Luce, William E.. Aircraft shock strut having a fluid level monitor. USP2014128919182.
  10. Nance C. Kirk. Aircraft weight and center of gravity indicator. USP2001056237406.
  11. Giazotto, Alessandro Riccardo Britannico. Apparatus and method suitable for measuring the displacement or load on an aircraft component. USP2009087578199.
  12. Adams, John; Hendrickson, Marty. Digital inclinometer and related methods. USP2005046880258.
  13. Edmonson, Jeremy Richard; Coombs, Joshua. Hydraulic pump system and method of operation. USP2017029574582.
  14. Saxon,Nancy L.; Eckelberry,James; Ma,John K.; Maly, Jr.,Frank A.; Melekian,Joseph; Miller,Steven R.; Somnay,Rajesh J.. Intelligent load distribution system. USP2006077072763.
  15. Yates, Michael Stuart; Keen, Philip Gregory. Landing load monitor for aircraft landing gear. USP2011118055396.
  16. Song, Xubin; Osorio, Carlos Fernando; Edmondson, Jeremy Richard. Mean pressure estimation for compressible fluid strut. USP2005086935639.
  17. Almalki, Mohammad F.; Elshafei, Moustafa. Method and apparatus for tracking center of gravity of air vehicle. USP2012098260477.
  18. Giazotto,Alessandro Riccardo Britannico. Method and apparatus suitable for measuring the displacement or load on an aircraft component. USP2009037506549.
  19. Fox Peter F.. Method of pre-planning the loading of aircraft. USP2001106308131.
  20. Nance, C. Kirk. Methods for determination of optimum sequence for automated activation of onboard aircraft weight and balance system. USP2013098543322.
  21. Long, Michael A.; Gouette, Geoffrey E.. Onboard aircraft weight and balance system. USP2012128340892.
  22. Fazeli, Amir M.; Cepic, Adnan; Reber, Susanne M.. Servicing monitoring system for mixed fluid-gas shock struts. USP2016039285007.
  23. Schmidt, Robert Kyle. Shock absorber. USP2018039914532.
  24. Coombs, Joshua; Edmondson, Jeremy. Suspension strut for a vehicle. USP2013098534687.
  25. Coombs, Joshua; Edmondson, Jeremy. Suspension strut for a vehicle. USP2015109150076.
  26. Coombs, Joshua; Edmondson, Jeremy. Suspension strut for a vehicle. USP20181110125841.
  27. Don S. Godwin ; Kenneth D. Driver ; Joseph C. Gray ; Richard J. Gritter. System and apparatus for determining the center of gravity of an aircraft. USP2002036353793.
  28. Godwin, Don S.; Driver, Kenneth D.; Gray, Joseph C.; Gritter, Richard J.. System and apparatus for determining the center of gravity of an aircraft. USP2003056564142.
  29. Mardirossian,Aris. System and method of measuring weight of passengers and luggage, and weight distribution of aircraft. USP2007107281418.
  30. Gottfriedsen, Jan; Urschel, Patrick. Weighing device, in particular, multiple-track weighing device. USP2010087767915.