Cooperative Research on a Semi-Displacement High-Speed Boat.

半排水量高速船合作研究。

• 批准号: 01302037
• 负责人: NAKATO Michio
• 金额: $ 8.26万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01302037/
• 关键词: Semi-displacement craft,; Scale effect,; Form factor; Running attitude,; Wetted surface area,; Spray; 浸水面積; トリム; 沈下; 高速艇; 高速艇の抵抗試験; 高速艇の航走姿勢; 高速艇のスプレイ; 高速艇の操縦運動モデル; 高速艇模型試験と表面張力

A resistance test program of a high-speed semi-displacement craft was performed. This work forms a part of the tasks of the High-Speed Marine Vehicle Committee of ITTC.Analyzing the tests data, the following conclusions are obtained. The scale effect is not found in the wave resistance, and on the other hand, it appears in trim and spray observations. The form factor of frictional resistance can be determined even at high Froude numbers, by the method suggested by Hughes as a function of froude number. Appropriate turbulence stimulator for semi-displacement hull should be developed. The characteristics of semi-displacement hull forms in the range of medium Froude numbers are similar to those of displacement hull forms in many points. This means that the ITTC 1978 power prediction method, with practical modifications, would be applicable to this type of high-speed craft.The effect of towing direction, variation of wetted surface area and aerodynamic effect due to the towing carriage do not make noticeable effects on the results of the resistance tests of this hull form.Craft motion characteristics in waves can be estimated by applying a strip method.In the maneuverability estimations of a high-speed craft, the change of attitude must be taken in to account.

进行了高速半排水型艇阻力试验研究。本工作是ITTC高速船舶委员会的一部分工作，通过对试验数据的分析，得出以下结论。波浪阻力没有发现尺度效应，而纵倾和浪花观测则出现尺度效应。即使在高弗劳德数下，也可以通过Hughes建议的作为弗劳德数的函数的方法来确定摩擦阻力的形状因子。应研制适合于半排水型船体的湍流激励器。半排水型船体船型在中佛氏数范围内的特性与排水型船体船型在许多方面有相似之处。这意味着ITTC 1978年的功率预测方法，经过实际修改，将适用于这种类型的高速船。由于拖架引起的湿表面积变化和气动力效应对这种船体型式的阻力试验结果没有明显影响。采用条带法可以估算船舶在波浪中的运动特性。在试验中，在对高速船的操纵性进行评估时，必须考虑姿态的变化。

项目成果

ITTC HighーSpeed Marine rehicles Committee: "Report of the HighーSpeed Marins rehicles Committee" Proceedings of 19th International Towing Tank Conference vol 1.(Madrid Spain). 289-359 (1990)

ITTC 高速海上拖车委员会：《高速海上拖车委员会报告》第 19 届国际拖曳水池会议记录第 1 卷。（西班牙马德里）289-359（1990 年）。

H.Tanaka,M.Nakato,K.Nakatake,T.ueda,S.Araki: "Cooperative Resistance Tests with Geosim Model of a HighーSpeed SemiーDisplacement Craft" 日本造船学会論文集. (1991)

H.Tanaka、M.Nakato、K.Nakatake、T.ueda、S.Araki：“高速半排水艇的 Geosim 模型的协同阻力测试”日本造船学会会刊（1991 年）。 ）

高速艇研究特別委員会: "「高速艇と性能」(第7章高速艇の操縦性能)仲渡" (社)日本造船学会, 300 (1989)

高速船研究特别委员会：《高速船及其性能（第7章高速船的操纵性能）Nakawatari》日本造船学会，300（1989）

High Speed Marine Vehicle Committee: "Proceedings of 19th ITTC" International Towing Tank Conference(ITTC), (1990)

高速船舶委员会：《第 19 届 ITTC 会议记录》国际拖曳水池会议（ITTC），（1990 年）