著者
新開 明二 小西 陽一
出版者
社団法人 日本船舶海洋工学会
雑誌
西部造船会々報 91
巻号頁・発行日
pp.211-219, 1996-03-29 (Released:2018-03-01)
参考文献数
22

The authors discuss aesthetic and geometric considerations for the ship design. When reading histories of ships, it is easy to confirm that they have many elegant characteristics in shapes. However, papers discussed the aesthetics of ships are rarely to be seen in bibliographies of the naval architecture. This does not mean the naval architecture don't have the philosophy "a sense of the aesthetics". In fact aesthetic characteritics of new ship are always pointed out when introducing the design profile, and thorefore the authors guess that the design process involves a sense of the aesthetics. In order to prove their guess to be right, practical processes in relation to the aesthetics are extraced from the ship design procedure, and so the meaning of the aesthetics in the procedure is made to be clear by using the Golden Section and the Dynamic Symmetry. Finally, it is geometically examined whether the Dynamic Symmetry is applied to the planning of the profile (type) of ship.
著者
新開 明二 万順 濤 小西 陽一
出版者
The Japan Society of Naval Architects and Ocean Engineers
雑誌
日本造船学会論文集 (ISSN:05148499)
巻号頁・発行日
vol.1997, no.182, pp.435-444, 1997 (Released:2009-09-16)
参考文献数
33

This paper deals with a new statistical prediction method for the propeller racing of ships sailing in rough seas. The propeller racing is one of the most important sea keeping quality in relation to the safety of main engine and shafting system. The trend of the racing has been investigated mainly in order to estimate allowable maximum propeller diameter, operability of ocean-going ships etc.. In those studies, the propeller racing generally and mainly means the situation (propeller exposed) in which the relative motion amplitude between ship hull and wave surface would exceed a depth of point in rotary disk propeller. Therefore, it seems that the magnitude of the amplitude and its exceeding frequency have been examined as a principal subject of study as usual. However, the time during which the amplitude exceeds a depth of point, that is, the propeller exposes in the air over sea surface, must be also one of most important factor affecting the trend of propeller racing. Then, this paper proposes a new practical method for estimating the time lasting of exposed propeller related to propeller racing in rough confused seas on the basis of the statistics.
著者
新開 明二 小西 陽一
出版者
公益社団法人日本船舶海洋工学会
雑誌
西部造船会会報 (ISSN:0389911X)
巻号頁・発行日
no.93, pp.157-166, 1997-03-29
被引用文献数
2

This paper deals with the application of the Golden Section Number to aesthetic and geometric considerations for the ship design. The Golden Section Number acts an important role in the Dynamic Symmetry, which was proposed by Hanbijji, J. (1920). In order to survey what it's role is in the planning of profile (type) of ship, a series of analysis are executed for some passenger ships in relation to the interior angles of the configuration of ship. Finally, the design procedure are certified on the basis of those analysis.
著者
新開 明二 山口 悟
出版者
九州大学
雑誌
萌芽研究
巻号頁・発行日
2003

情報美学の考え方の骨子となっている記号論的観点と情報理論的観点に基づく客観的・抽象美学を採用することとし、具体的には、数量的マクロ美学と数量的ミクロ美学を分析の道具として用いた。船の美の分析にあたり、日本で建造され日本近海で就航している多数の客船・フェリーを分析対象船として採用しシリーズ計算を実施して、面積分割法と船の美との関係について論考することを研究の目的とした。明らかにした項目は次の3点である。即ち、(I)美学の視点から、提示された分析手法の位置付けの明確化、(II)動的均斉論に基づく船の側面形状の面積分割法と船の美との関係の意味付け、(III)設計原理の概念と異なった観点から造形(デザイン)の指針の確立を図ることである。まず、数量的マクロ美学と数量的ミクロ美学に基づく数理解析を実施して、動的均斉論に基づく面積分割法の分析結果の評価を行い、その結果に基づき、一般の造形デザインに共通する基礎理論の論証を試みた。次に、数量的マクロ美学と数量的ミクロ美学に基づく数理解析を継続して実施し、動的均斉論に基づく面積分割法の分析結果の評価を行った。船の美の分析手法の確立とデザイン基礎論の検討において理論的な論証で一応の成果が得られたが、手法の汎用化促進の検討において、船舶設計簡易CADシステムと画像処理ソフト(フリーソフト)との連結が上手くいかず、いくつかの課題を残した。本研究で得られた成果を踏まえて、一般造形デザインに共通する基礎理論の論証研究を継続する必要がある。
著者
新開 明二 山口 悟 加賀田 拓郎 久保 憲一 口木 裕介 慎 勝進
出版者
公益社団法人日本船舶海洋工学会
雑誌
西部造船会会報 (ISSN:0389911X)
巻号頁・発行日
no.109, pp.93-100, 2005-03-20

The phenomenon in connection with the economical efficiency and the safety which happen during a voyage strongly depends on the situation of the ship operation process. Although the ship operation process is complicated and it is a random phenomenon, it can be regarded as a stochastic model. Therefore, this paper discusses the stochastic-modeling of the ship operation process. A series of numerical simulation experiment have been executed using the data obtained from voyage record of four tankers. In analyzing the numerical simulation result, the possibility of constructing a forecasting scheme of the ship operation process on the basis of the stochastic-modeling is suggested.
著者
新開 明二 池田 五苗 長尾 健 長 俊寿
出版者
公益社団法人日本船舶海洋工学会
雑誌
西部造船会会報 (ISSN:0389911X)
巻号頁・発行日
no.105, pp.179-186, 2003-03-20
参考文献数
9

As one of the counterplans to the global warming problem, wind power energy has promising availability in natural energy, and the technical development of wind energy conversion systems is also tackled in Japan. Since the sea has less restriction about social conditions than land, paying attention to the geographical conditions of the Japanese country surrounded by the sea our own time demands, basic investigation about offshore wind energy conversion systems. This paper presents an example of examination for the Miyake island circumference ocean space with emphasis on "wind power investigation", using the prediction program WAsP as wind climate prediction in offshore windmill installations site. The amount of power generation is estimated with regard to some concrete windmills, and then, as one concept in a system design, an energy conversion system (called "offshore wind energy conversion fleet network system") with the windmill of a float type is proposed. It is confirmed that industrialization of offshore wind power is a theme of an energy policy of Japan which deserves examination as a proposal on the other hand.