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Method and apparatus for reducing airframe aerosound

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-003/50   
미국특허분류(USC) 244/215 ; 244/213 ; 244/199
출원번호 US-0501246 (1995-07-10)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Anderson
인용정보 피인용 횟수 : 14  인용 특허 : 0
초록

A method and apparatus for reducing noise produced by the airframe of an airplane in flight. The present invention provides a smooth, continuous, arcuate surface, such as a rounded edge cap, for the lateral surface of any airplane flap exposed to fluid having relative motion with respect to the airplane. Tests indicate that a rounded flap edge cap made in accordance with the present invention is effective in attenuating noise levels in the middle and high frequency range, i.e., between about 500 to about 10000 Hz.

대표
청구항
▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] In an airplane wing having an inboard portion and an outboard portion, an upper wing surface, a lower wing surface, and a trailing edge formed at the juncture of said upper and lower surfaces, said wing being capable of relative motion through a fluid, an apparatus for reducing noise levels created by said wing when said wing is moving through said fluid, comprising:a flap positioned at said trailing edge on said wing and disposed betwe...

이 특허를 인용한 특허 피인용횟수: 14

  1. Foster, Scott Robert; Sugi, Eiji; Demarest, Jr., Harold. Air seal assembly for aircraft flap seal. USP2017049618118.
  2. Trichês, Jr., Mário; Valle do Carmo, Micael Gianini; Caldeira da Silva, Bruno Arantes; Franca Barboza, Marcus Vinicius; Losada Gouveia, Vinicius. Aircraft provided with aerodynamic seal for reduction of noise generated by aircraft control surfaces. USP2014028657236.
  3. Jeffrey W. Moe. Aircraft wing and method for reducing airframe-generated noise. USP2002096454219.
  4. Larssen, Jon V.; Calkins, Frederick T.. Deployable flap edge fence. USP2010077753316.
  5. Larssen, Jon V.; Calkins, Frederick T.. Deployable flap edge fence. USP2013068469315.
  6. Isotani, Kazuhide; Hayama, Kenji. High-lift device of flight vehicle. USP2016049302761.
  7. Isotani, Kazuhide; Hayama, Kenji. High-lift device of flight vehicle. USP2017049623956.
  8. Isotani, Kazuhide; Hayama, Kenji. High-lift device of flight vehicle. USP2017039586672.
  9. Moe, Jeffrey W.; Wunsch, John J.; Sperling, Michael S.. Method and apparatus for noise abatement and ice protection of an aircraft engine nacelle inlet lip. USP2009097588212.
  10. Huenecke, Klaus. Method and apparatus for reducing trailing vortices in the wake of an aircraft. USP2003026513761.
  11. Lee, Robert Michael; Evans, Brian G.. Methods and apparatus for a multi-segment flap fence. USP2011017874524.
  12. Ingo Borchers DE; Roger Drobietz DE; Michael Gruenewald DE; Knut Mau DE; Johann Reichenberger DE. Noise reducing vortex generators on aircraft wing control surfaces. USP2002126491260.
  13. Martin Hernandez, Agustin Mariano. Sealing system for the gap existing between the fuselage and the elevator of an aircraft with orientable horizontal stabilizer. USP2010047699266.
  14. Good, Mark Steven; Prichard, Alan Keith. Trailing edge flap system. USP2013088511608.

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