Zobrazeno 1 - 10
of 182
pro vyhledávání: '"Soogab Lee"'
Publikováno v:
Noise and Health, Vol 14, Iss 61, Pp 303-306 (2012)
Activities from 2008 to 2011 by ICBEN community response to noise team were summarized. That is, individual community-based indexes such as community tolerance Level, Zuricher Fluglarm Index (ZFI) and Frankfurter Fluglarm Index (FFI/FNI) were newly p
Externí odkaz:
https://doaj.org/article/97562c2388b347eca043b2eca8c603b1
Publikováno v:
Journal of Mechanical Science and Technology. 37:607-615
Autor:
Byunghyun Ahn, Soogab Lee
Publikováno v:
International Journal of Aeronautical and Space Sciences. 24:1-8
Publikováno v:
International Journal for Numerical Methods in Fluids. 94:272-294
Publikováno v:
Ocean Engineering. 276:114218
Autor:
Jeongwoo Ko, Soogab Lee
Publikováno v:
Journal of Aircraft. 58:363-373
In this Paper, the wake dynamics of coaxial rotors are studied using the high-wake-resolution method. The high-wake-resolution method is a novel combination of the truncated vortex tube model for i...
Autor:
Jeongwoo Ko, Soogab Lee
Publikováno v:
Aerospace Science and Technology. 135:108188
Autor:
Injeong Choi, Soogab Lee
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 49:41-52
Publikováno v:
International Journal of Aeronautical and Space Sciences. 22:33-41
The noise sources of the tip-jet driven rotor are mainly classified as rotor blade noise and jet noise. The rotor blade noise includes thickness noise, loading noise, and nonlinear quadrupole noise, while the jet noise includes nozzle momentum noise
Publikováno v:
Journal of Mechanical Science and Technology. 34:1429-1443
The multi-rotor type unmanned aerial vehicle (UAV) controls the movement through the rotational speed of each rotor. Since the phase of each rotor is different and minute variations of the rotational speed are always accompanied during flight, freque