Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Dejiang Shang"'
Publikováno v:
Journal of Low Frequency Noise, Vibration and Active Control, Vol 43 (2024)
By the analytical method, this paper investigates the mode-coupling friction-induced instability and the resulting stick-slip self-excited vibration of the marine stern water-lubricated rubber bearing-shaft system. The 2-DOF simplified theoretical mo
Externí odkaz:
https://doaj.org/article/62377fd34a0a49bcbbee5ca26c6c3d9d
Publikováno v:
Applied Sciences, Vol 11, Iss 11, p 5160 (2021)
A fast prediction method is proposed for calculating the sound scattering of targets in the deep-sea acoustic channel by equating the sound scattering field of a complex elastic target to the acoustic field excited by a directional point source. In d
Externí odkaz:
https://doaj.org/article/d706c2535ec94116842c070038c112c5
Publikováno v:
Applied Sciences, Vol 11, Iss 9, p 3869 (2021)
Superhydrophobic surface is a promising technology, but the effect of superhydrophobic surface on flow noise is still unclear. Therefore, we used alternating free-slip and no-slip boundary conditions to study the flow noise of superhydrophobic channe
Externí odkaz:
https://doaj.org/article/d58992306fb74c30a4b13e27c3566a3e
Publikováno v:
Applied Sciences, Vol 11, Iss 6, p 2722 (2021)
The Green’s function (GF) directly eases the efficient computation for acoustic radiation problems in shallow water with the use of the Helmholtz integral equation. The difficulty in solving the GF in shallow water lies in the need to consider the
Externí odkaz:
https://doaj.org/article/76f9615aad1346f6a0509d4c8662b48a
Publikováno v:
Applied Sciences, Vol 10, Iss 9, p 3073 (2020)
A sound radiation calculation method by using dominant modes is proposed to predict the sound radiation from a cylindrical shell. This method can provide an effective way to quickly predict the sound radiation of the structure by using as few displac
Externí odkaz:
https://doaj.org/article/201f5c6b4955483dafda116c2006ba32
Publikováno v:
Applied Sciences, Vol 10, Iss 3, p 917 (2020)
The traditional free-space and half-space analysis method ignore the reflection of the upper and lower boundaries of shallow sea and are not suitable for analyzing shallow sea problems especially at high frequency. Hence, a method combining ray theor
Externí odkaz:
https://doaj.org/article/a27710bc4e174123959d882fd79fcab1
Publikováno v:
Journal of Marine Science and Engineering, Vol 7, Iss 3, p 68 (2019)
High hydrodynamic noise is a threat to the survival of underwater vehicles. We investigated a noise suppression mechanism by putting leading-edge serrations on the sail hull of a scaled SUBOFF model, through numerical calculation and an experimental
Externí odkaz:
https://doaj.org/article/a49d23ea566542e28a45c322827a9d73
Publikováno v:
Applied Sciences, Vol 9, Iss 4, p 737 (2019)
The hydrodynamic noise from the horseshoe vortex can greatly destroy the acoustic stealth of underwater vehicles at low frequency. We investigated the flow-induced noise suppression mechanism by mechanical vortex generators (VGs) on a SUBOFF model. B
Externí odkaz:
https://doaj.org/article/8bf9157a7fc84c209959ed3b114a08ff
Publikováno v:
Applied Sciences, Vol 9, Iss 1, p 106 (2018)
Flow-induced noise from the sail hull, which is induced by the horseshoe vortex, the boundary layer separation and the tail vortex shedding, is a significant problem for the underwater vehicles, while has not been adequately studied. We have performe
Externí odkaz:
https://doaj.org/article/538403d0b73d4f7a89b67c558bcb9db7
Publikováno v:
Journal of Ocean University of China. 21:903-916
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::472c7802831a838daeeacc14360d4572
https://doi.org/10.1007/s11802-022-4908-3
https://doi.org/10.1007/s11802-022-4908-3