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Basic Development of Wing-In-Surface-Effect Ship of a New Configuration with High Seaworthiness

高适航性新构型面效船的基础研制

基本信息

批准号：
14205145
负责人：
KUBO Syozo
金额：
$ 23.88万
依托单位：
Tottori University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14205145/
关键词：
Wing-In-Surface-Effect Ship Seaworthiness Canard Configuration CFD Wind Tunnel Test Water Basin Test Flight on Waves Self Propulsion Model 小型自航模型

项目摘要

In the last year of our four year project we constructed and tested a large scale model in Tottori University and a model with outer wings in Hiroshima University making full use of our results. The large scale model is 7.2 m long and 5.0 m wide, which is the size of a real ship for two seats. We achieved a series of stable flights over 1,500 m by radio-control of the model. This means that basic scientific and technical problems of the canard configuration of the Wing-In-Surface-Effect ship are cleared. By the model with outer wings we found out the fact that the shift of center of aerodynamic force with change of altitude is reduced by the outer wings. They are also useful to enhance roll stability. In Yokohama National University a high-speed water basin test was conducted using a small scale model built in Tottori University.Research on precise wind tunnel was continued on the S shaped wing with a canard. The result showed that the canard was very effective to increase pitching stability, but had small contribution to increase lift. On the bases of these aerodynamic researches we conducted a motion simulation of the craft in the plane vertical to the water surface. The result showed a good performance of the craft in its cruising flight.We also developed a CFD method to calculate spray from the bottom of the craft, and obtained hydrodynamic forces acting on the bottom of its hull. These forces had qualitatively similar characters to those of now existing experimental results, but quantitatively insufficient coincidence.

在我们四年项目的最后一年，我们充分利用我们的成果，在鸟取大学建造并测试了一个大型模型，在广岛大学建造并测试了一个带外翼的模型。大比例尺模型长7.2米，宽5.0米，相当于真船的两个座位大小。我们通过无线电控制模型实现了1500米以上的一系列稳定飞行。这意味着解决了面效翼艇鸭翼构型的基本科学技术问题。通过带外翼的模型，我们发现外翼的存在减小了气动力中心随高度变化的偏移。它们还有助于提高侧倾稳定性。在横滨国立大学，使用鸟取大学建造的小型模型进行了高速水盆试验。在带鸭翼的S型机翼上继续进行精密风洞研究。结果表明，鸭翼对提高俯仰稳定性非常有效，但对提高升力的贡献很小。在这些气动研究的基础上，对该艇在垂直于水面的平面上进行了运动仿真。结果表明该飞行器在巡航飞行中具有良好的性能。我们还开发了一种CFD方法来计算船体底部的喷雾，并获得了作用在船体底部的水动力。这些力在性质上与现有的实验结果相似，但在数量上缺乏一致性。