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pro vyhledávání: '"lcsh:TC1501-1800"'
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 13, Iss, Pp 187-193 (2021)
In order to solve the problem of false terrains caused by environmental interferences and tunneling effect in the conventional multi-beam seafloor terrain detection, this paper proposed a seafloor topography detection method based on fast two-dimensi
Autor:
Suk-Yoon Hong, Il-Ryong Park, Woen-Sug Choi, Jee-Hun Song, Hyun-Wung Kwon, Han-Shin Seol, Min-Jae Kim
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 13, Iss, Pp 75-85 (2021)
The broadband noise can be dominant or important for total characteristics for marine propeller noise representing the minimum base of self-noise. Accurate prediction of such noise is crucial for survivability of underwater military vessels. While th
Autor:
Jeongrok Kim, Il-Hyoung Cho
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 13, Iss, Pp 178-186 (2021)
The wave power extraction by multiple Wave Energy Converters (WECs) deployed in a Y-shaped Water Channel Resonator (WCR) has been investigated. A WCR consists of a long water channel, and a V-shaped wave guider installed at the entrance of a water ch
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 13, Iss, Pp 115-125 (2021)
Simulation-based hull form optimization is a typical HEB (high-dimensional, expensive computationally, black-box) problem. Conventional optimization algorithms easily fall into the “curse of dimensionality” when dealing with HEB problems. A recen
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 13, Iss, Pp 57-64 (2021)
Maneuvering motions of a ship in calm water are studied through the concept of MMG model. Governing forces are defined by the use of available empirical formulae that require only main ship particulars as input variables. In order to validate the cal
Autor:
Hyunkyoung Shin, Rupesh Kumar
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 13, Iss, Pp 126-135 (2021)
Wave energy is one of the most available sources of renewable energy in the world. It has been previously proven that the flapping foil can generate thrust forces using energy from the surface waves and an empirical formula was proposed to predict th
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 13, Iss, Pp 102-114 (2021)
Biofouling represents an important problem in the shipping industry since it causes the increase in surface roughness. The most of ships in the current world fleet do not have good coating condition which represents an important problem due to strict
Publikováno v:
Journal of Ocean Engineering and Science, Vol 6, Iss 2, Pp 185-195 (2021)
This paper proposes an automatic ship detection approach in Synthetic Aperture Radar (SAR) Images using phase spectrum. The proposed method mainly contains two stages: Firstly, sea-land segmentation of SAR Images is one of the key stages for SAR imag
Publikováno v:
Journal of Ocean Engineering and Science, Vol 6, Iss 2, Pp 160-169 (2021)
Fluid dynamics of a self-propelled biomimetic underwater vehicle (BUV) with pectoral fins is investigated by an immersed boundary (IB) method. Typically, the BUV with a pair of pectoral fins starts from rest and attains a constant mean velocity as th
Publikováno v:
Journal of Ocean Engineering and Science, Vol 6, Iss 2, Pp 109-127 (2021)
In this paper, a unified solution method for analyzing the free vibration characteristics of functionally graded rotating type plate (FGRTP) of which the distribution of material is defined by four parameters is presented. It is assumed that the cons