控制飞机从超大型浮动机场起飞时产生的浮体波

Eng Pub Date : 2024-07-22 DOI:10.3390/eng5030081
Taro Kakinuma, Yusei Fukuura
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引用次数: 0

摘要

利用水波与浮动薄板相互作用的速度势能非线性浅水方程组进行了数值模拟,以研究超大型浮动机场对飞机起飞的响应。我们提出了两种降低机场持续振动的方法:通过降低机场边缘部分的挠曲刚度来降低反射率,以及通过降低机场跑道下部分静水深度来降低放大率。首先,当均匀降低机场边缘部分的挠曲刚度时,由于多次反射,B737 飞机引起的浮体波反射率降低了。然而,B747 的波反射率却增加了,这取决于具体条件。过长的边缘部分无法有效降低波反射率。相反,当机场边缘部分的挠曲刚度线性降低时,两架飞机的波浪反射率都降低了。其次,当机场跑道下的静水深度在浮体波被放大的位置部分减小时,随着较浅区域静水深度的减小,浮体波的波高趋于减小。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Control of Floating Body Waves Due to an Airplane Takeoff from a Very Large Floating Airport
Numerical simulations were generated to investigate the response of a very large floating airport to an airplane takeoff, using the set of nonlinear shallow water equations of velocity potential for water waves interacting with a floating thin plate. We have proposed two methods to reduce persistent airport vibration: reflectance reduction by decreasing the flexural rigidity in airport edge parts and amplification reduction by decreasing the still water depth partially under airport runways. First, when the flexural rigidity is uniformly decreased in an airport edge part, the reflectance of the floating body waves due to a B737 was reduced because of the multiple reflections. However, the wave reflectance for a B747 increased, depending on the conditions. A too-long edge part was not effective in reducing the wave reflectance. Conversely, when the flexural rigidity is linearly decreased in an airport edge part, the wave reflectance was reduced for both airplanes. Second, when the still water depth under an airport runway is partially reduced at the location where floating body waves are amplified, the wave heights of floating body waves tended to decrease as the still water depth in the shallower area decreased.
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Eng
Eng
CiteScore
2.10
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