Zobrazeno 1 - 10 of 62 pro vyhledávání: '"Katsuji Tanizawa"'
1
Path following algorithm application to automatic berthing control
Autor: Yasushi Kitagawa, Katsuji Tanizawa, Koichi Hirata, Junji Fukuto, Michio Ueno, Ryohei Sawada, Eiko Saito
Publikováno v: Journal of Marine Science and Technology. 26:541-554
This paper aims to verify a new automatic berthing system using a path following algorithm. Berthing operation is one of the most burdensome tasks for crews among several ship operations. The maneuverability of a ship at low speed during berthing ope
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2214779edfe49d4f86b92ed6e8f94825
https://doi.org/10.1007/s00773-020-00758-x
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2
Temporal variation of modulated-wave-train geometries and their influence on vertical bending moments of a container ship
Autor: Katsuji Tanizawa, Hiroshi Sawada, Hidetaka Houtani, Takuji Waseda
Publikováno v: Applied Ocean Research. 86:128-140
A towing experiment was conducted using a modulated wave train to investigate the vertical bending responses of a hydro-structural container ship model. In the experiment, a spatially periodic modulated wave train, as a model of a freak wave in succe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4d5e46036b40bc03743c356f5bd5a678
https://doi.org/10.1016/j.apor.2019.01.021
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3
Generation of a spatially periodic directional wave field in a rectangular wave basin based on higher-order spectral simulation
Autor: Takuji Waseda, Katsuji Tanizawa, Wataru Fujimoto, Hidetaka Houtani, Keiji Kiyomatsu
Publikováno v: Ocean Engineering. 169:428-441
A new wave generation method, called HOSM-WG, is presented in this paper. The method utilizes the precomputed spatially periodic wave field based on the higher-order spectral method (HOSM) simulation to calculate the wave-maker signals. The spatially
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a1674fe7b1701f2e9950de62c18f0c48
https://doi.org/10.1016/j.oceaneng.2018.09.024
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6
Energy savings for ship propulsion in waves based on real-time optimal control of propeller pitch and electric propulsion
Autor: Shoji Ikejima, Hidenori Sekiguchi, Hidenari Makino, Toshiyuki Ohtsuka, Katsuji Tanizawa, Masaki Fukazawa, Naoya Umeda, Junichi Suzuki
Publikováno v: Journal of Marine Science and Technology. 22:546-558
To reduce greenhouse gas emissions from ships as required by international environmental regulations, we propose herein an energy-saving method for ships sailing on wavy seas. The effect of applying this method is investigated by a numerical study of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c266055e5e2ee27257b5332884b9bcc
https://doi.org/10.1007/s00773-017-0434-1
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9
Development of a Methodology on Tank Model Test Measuring Speed Drop of Actual Ship under Waves
Autor: Katsuji Tanizawa, Michio Ueno, Yasushi Kitagawa, Yoshiaki Tsukada
Publikováno v: Journal of the Japan Society of Naval Architects and Ocean Engineers. 22:21-34
An experimental methodology of tank test, which enables the authors to directly obtain speed of actual ship under waves just by experimental result of model test under corresponding same wave condition, is newly developed. One of features of the meth
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::342267ea9fcb9de08fe8d7f70a63ca65
https://doi.org/10.2534/jjasnaoe.22.21
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10
Development of an Auxiliary Thruster for Free-running Model Ship Tests
Autor: Hideki Miyazaki, Katsuji Tanizawa, Ryosuke Suzuki, Yasushi Kitagawa, Yoshiaki Tsukada, Michio Ueno
Publikováno v: Journal of the Japan Society of Naval Architects and Ocean Engineers. 20:59-67
The free-running model ship test is one of effective measures to estimate ship performance and response in various situations. However, since Reynolds numbers are quite different between model and full-scale ships, phenomena of model ship especially
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7a665b9aa2cf21752b457742957016e
https://doi.org/10.2534/jjasnaoe.20.59
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