| 仿生鱿鱼俯仰姿态下水动力学数值模拟 |
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| 引用本文： | 黄小双,孙翁杰,王静峰,孔祥洪,刘必林,陈新军.仿生鱿鱼俯仰姿态下水动力学数值模拟[J].上海海洋大学学报,2022,31(1):252-260. |
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| 作者姓名： | 黄小双 孙翁杰 王静峰 孔祥洪 刘必林 陈新军 |
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| 作者单位： | 上海海洋大学,上海海洋大学 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目）,国家重点基础研究发展计划（973计划），上海市科技创新行动计划；2020年地方院校能力建设 |
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| 摘 要： | 鱿鱼作为海洋高等软体动物,其软体特征与腕部特点为其机动性奠定了基础。为研究仿生鱿鱼软体触腕在不同俯仰角度下的弯曲特性,选择茎柔鱼(Dosidicus gigas)为仿生对象,建立仿生鱿鱼不同俯仰角度下的简化三维模型,并根据不同俯仰角度假设触腕不同弯曲特性。根据三维简化模型,采用数值模拟方法,分析比较仿生鱿鱼在不同俯仰姿态下与触腕弯曲下的水动力特性。研究认为:仿生鱿鱼采用软体触腕协调游动时,为其俯仰姿态的完成提供了有利的转矩,俯仰角最大为45°时其力矩系数达到-0.001 7,更有利于其高速游动时俯仰姿态的调整与游动方向的改变;仿生鱿鱼在完成俯仰姿态时可以通过改变腕部的弯曲程度,更及时高效地调整姿态与改变游动方向,且所需能耗较小。研究结果对仿生鱿鱼软体触腕的控制提供了依据与参考,同时为研究其高机动性游动行为与材料的选取奠定了基础。
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| 关 键 词： | 仿生 鱿鱼 俯仰游动 软体特征 机动性 数值模拟 |
| 收稿时间： | 2020/11/24 0:00:00 |
| 修稿时间： | 2021/7/6 0:00:00 |
Numerical simulation of hydrodynamics of bionic squid in pitching posture |
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| HUANG Xiaoshuang,SUN Wengjie,WANG Jingfeng,KONG Xianghong,LIU Bilin,CHEN Xinjun.Numerical simulation of hydrodynamics of bionic squid in pitching posture[J].Journal of Shanghai Ocean University,2022,31(1):252-260. |
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| Authors: | HUANG Xiaoshuang SUN Wengjie WANG Jingfeng KONG Xianghong LIU Bilin CHEN Xinjun |
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| Institution: | SHAHAI OCEAN UNIVERSITY,College of Marine Sciences Shanghai Ocean University |
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| Abstract: | In the design and research of bionic squid, it is very important to study the hydrodynamic characteristics under the pitching posture, and the completion of pitching motion is the foundation for the realization of its behavior bionics, basic marching motion and function.In order to study the hydrodynamic characteristics of the bionic squid''s flexible tentacles under its pitching posture, the bionic squid was selected as the biomimetic object, and the flexible contact wrist bending model under different pitching angles was established through the biomimetic squid simplified model.According to the 3d model, the hydrodynamic characteristics of biomimetic squid under different pitching posture and different bending degree of contact-arm were analyzed and compared by numerical simulation method.Through analysis: when the biomimetic squid uses flexible wrist to coordinate swimming, it provides a favorable torque for the completion of its pitching posture, which is more conducive to the change of its pitching posture and swimming direction when it swims at high speed.When the bionic squid completes the pitching posture, it can adjust the posture and swimming direction more timely and efficiently by changing the bending degree of the wrist, and it requires less energy consumption.The results lay a foundation for the research on the flexibility and swimming behavior of biomimetic squid. |
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| Keywords: | bionics squid pitching flexible characteristics maneuverability numerical simulation |
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