Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Sung-Nam Jung"'
Publikováno v:
Aerospace, Vol 11, Iss 2, p 102 (2024)
The air and structural loads of a 5-ton class light helicopter (LH) rotor in a 2.24 g pull-up maneuver are investigated using a coupling between the computational structural dynamics (CSD) and computational fluid dynamics (CFD) methods. The LH rotor
Externí odkaz:
https://doaj.org/article/58a808b76f93487e989225c3bcb0756a
Autor:
Jae Seong Bae, Sung Nam Jung
Publikováno v:
Aerospace, Vol 9, Iss 10, p 576 (2022)
An analytical methodology is developed for thin-walled composite beams with arbitrary geometries and material distributions. The approach uses a mixed variational theorem which sets the shell displacements, and the shear stress resultants and hoop mo
Externí odkaz:
https://doaj.org/article/e8d9bbfc21a84d6d8c78bbc9678a0f84
Publikováno v:
Aerospace, Vol 8, Iss 12, p 370 (2021)
This paper describes an evaluation of the structural properties of the next-generation active twist blade using X-ray computed tomography (CT) combined with digital image processing. This non-destructive testing technique avoids the costly demolition
Externí odkaz:
https://doaj.org/article/fce277d727654f14b331e04fc0ecd4f2
Publikováno v:
International Journal of Aeronautical and Space Sciences. 22:502-513
Complex and unsteady flow patterns occur around rotating rotor blades owing to the generation of shock waves at the blade tip and interference between the blade and tip wake when the blade rotates at high speeds, thereby resulting in specific noise c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::136275dd3656e66ec76a095dbf1a0beb
https://doi.org/10.1007/s42405-020-00340-0
https://doi.org/10.1007/s42405-020-00340-0
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 47:489-498
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93d215edb4985b36c392898be2c96604
https://doi.org/10.5139/jksas.2019.47.7.489
https://doi.org/10.5139/jksas.2019.47.7.489
Autor:
Sung Nam Jung, Manoj Kumar Dhadwal
Publikováno v:
Composites Part B: Engineering. 168:476-487
Classical finite element (FE) beam theories are based on displacement formulation requiring derivatives to obtain the stress components which leads to a large number of FEs and depend on nodal averaging techniques for achieving sufficient accuracy. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37c503f6eba5777f0f741fc78aeee700
https://doi.org/10.1016/j.compositesb.2019.03.063
https://doi.org/10.1016/j.compositesb.2019.03.063
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 47:364-370
본 연구에서는 능동적인 블레이드 제어기법인 개별 블레이드 제어(Individual Blade Control, IBC) 기법을 적용하여 고속비행 시 동축반전 회전익기의 허브 진동하중을 억제하기 위한 최적 제어입
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0413ef282cd530363f2820b1c91a618
https://doi.org/10.5139/jksas.2019.47.5.364
https://doi.org/10.5139/jksas.2019.47.5.364
Autor:
Manoj Kumar Dhadwal, Sung Nam Jung
Publikováno v:
AIAA Journal. 57:1702-1714
A multifield variational beam sectional analysis is proposed based on the Hellinger–Reissner principle for anisotropic beams with arbitrary cross-sectional geometries and material distributions. Bo...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e872f96fbb7d867be478999a17f3a0e
https://doi.org/10.2514/1.j057384
https://doi.org/10.2514/1.j057384
Publikováno v:
Aerospace; Volume 8; Issue 12; Pages: 370
Aerospace, Vol 8, Iss 370, p 370 (2021)
Aerospace, Vol 8, Iss 370, p 370 (2021)
This paper describes an evaluation of the structural properties of the next-generation active twist blade using X-ray computed tomography (CT) combined with digital image processing. This non-destructive testing technique avoids the costly demolition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43dc9dbb6a3f9981288fa78ddd5fcaa9
https://doi.org/10.3390/aerospace8120370
https://doi.org/10.3390/aerospace8120370
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 46:277-282
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd1aa56904b9c265027d64908af886b5
https://doi.org/10.5139/jksas.2018.46.4.277
https://doi.org/10.5139/jksas.2018.46.4.277