基于实验的波浪滑翔机海底滑翔机水动力模拟

IF 4.3 2区 工程技术 Q1 ENGINEERING, OCEAN
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引用次数: 0

摘要

波浪滑翔机是一种利用波浪能推进的无人水面飞行器,由三个主要部分组成:水面浮筒、水下滑翔机和系绳。水下滑翔机是主要的推进机制,它将浮筒的波浪运动转化为向前的推力,这对波浪滑翔机的能量吸收效率至关重要。然而,由于潜艇滑翔机结构复杂而独特,预测其运动性能是一项重大挑战。在本研究中,我们建立了潜艇滑翔机水翼的运动学和动力学模型,考虑了弹簧刚度、弹簧预紧力和弹簧连接位置等弹性效应。为支持该模型,进行了风洞试验,以确定潜艇滑翔机在各种运动状态下的升力和阻力系数。利用弹性水翼模型和实验获得的升力和阻力系数,我们开发了一个在波浪激振力作用下潜艇滑翔机的综合运动学和动力学仿真模型。为了验证该模型的准确性,我们设计了潜艇滑翔机在不同垂直激振力下的性能测试,并将测试结果与模拟结果进行了比较。结果表明,模拟结果与实验结果的偏差小于 5%,证明了模型的精确性。这种精确的模拟能力可以详细分析各种设计参数对滑翔机性能的影响,并为整个波浪滑翔机的高精度运动模拟奠定了坚实的基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental-based hydrodynamic simulation of submarine glider for wave gliders

The wave glider is an unmanned surface vehicle propelled by wave energy, consisting of three main components: a surface float, a submarine glider, and a tether. The submarine glider serves as the primary propulsion mechanism, converting the wave-induced motions of the float into forward thrust, which is crucial for the wave glider’s energy absorption efficiency. However, predicting the motion performance of the submarine glider presents a significant challenge due to its complex and unique structure. In this study, we establish a kinematic and dynamic model of the submarine glider’s hydrofoils, considering the elastic effects such as spring stiffness, spring preload, and spring attachment positions. To support this model, wind tunnel tests were conducted to determine the lift and drag coefficients of the submarine glider under various motion states. Utilizing the elastic hydrofoil model and the experimentally obtained lift and drag coefficients, we developed a comprehensive kinematic and dynamic simulation model of the submarine glider under heave excitation forces. To validate the accuracy of this model, performance tests for the submarine glider were designed under different vertical excitation forces , with results compared to simulation outcomes. The findings indicate that the deviation between simulated and experimental outcomes is less than 5%, demonstrating the model’s precision. This accurate simulation capability allows for detailed analysis of the effects of various design parameters on the glider’s performance and lays a solid foundation for high-accuracy motion simulation of the entire wave glider.

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来源期刊
Applied Ocean Research
Applied Ocean Research 地学-工程:大洋
CiteScore
8.70
自引率
7.00%
发文量
316
审稿时长
59 days
期刊介绍: The aim of Applied Ocean Research is to encourage the submission of papers that advance the state of knowledge in a range of topics relevant to ocean engineering.
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