Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Leung Choi Chow"'
Autor:
Dobrzynski, Werner1 Werner.dobrzynski@dlr.de, Leung Choi Chow2, Smith, Malcolm3, Boillot, Antoine4, Dereure, Olivier5, Molin, Nicolas6
Publikováno v:
International Journal of Aeroacoustics. Oct2010, Vol. 9 Issue 6, p763-786. 24p. 4 Black and White Photographs, 3 Diagrams, 10 Graphs.
Publikováno v:
AIAA Journal. 47:33-43
Landing gears of commercial aircraft make an important contribution to total aircraft noise in the approach configuration. Using fairings to shield components from high-speed impingement reduces noise. Furthermore, perforating these fairings has been
Autor:
Malcolm Smith, Leung Choi Chow, Christelle Seror, Werner Dobrzynski, Christopher Neil Wood, Britta Schöning
Publikováno v:
International Journal of Aeroacoustics. 5:233-262
In the approach phase of large commercial aircraft, airframe noise - and in particular that from landing gears - is one of the dominating aircraft noise components. Within a European co-financed research project entitled “Significantly Lower Commun
Autor:
Jon Higgins, Leung Choi Chow
Publikováno v:
Air & Space Europe. 2:53-56
With the continuing reductions being made in the noise output of modern aeroengines, airframe noise has become an increasingly significant component of the total noise generated by an aircraft on the approach, Airflow around the lowered undercarriage
Publikováno v:
Air & Space Europe. 1:72-75
The principal aircraft and engine manufactures in Europe are facing increasing pressure to reduce aircraft noise levels. This arises both from the community expectations of improved quality of life and from the need to compensate for the expected gro
Publikováno v:
19th AIAA/CEAS Aeroacoustics Conference.
The design of aircraft landing gears requires careful optimisation for each specific design of new aircraft, to include factors such as the overall size, strength and weight of the gear, the number of wheels, the method of transferring loads to the w
Publikováno v:
16th AIAA/CEAS Aeroacoustics Conference.
In previous investigations of aerodynamic noise from landing gears, solid fairings have been used to shield components from the flow so as to reduce the farfield noise. Larger noise reductions have been achieved by designing advanced low noise gears,
Autor:
Werner Dobrzynski, Leung Choi Chow, Antoine Boillot, Malcolm Smith, Olivier Dereure, Nicholas Molin
Publikováno v:
15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference).
Landing gear related airframe noise is one of the dominant aircraft noise components at approach, so continued research efforts to reduce landing gear noise are essential. This paper describes further development of an advanced low noise main landing
Publikováno v:
14th AIAA/CEAS Aeroacoustics Conference (29th AIAA Aeroacoustics Conference).
Landing gears have been identified as major noise source contributors during the aircraft’s approach to landing phase. Techniques such as using fairings to alter the flow around the landing gear components have shown to reduce noise . This study in
Publikováno v:
13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference).
This paper describes continued development and validation of a semi-empirical model of the aerodynamic noise generated by aircraft landing gears at approach. The model has been developed with Airbus funding over a number of years1,2 , but recent stud