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。
In the design and research of bionic squid, it is very important to study the hydrodynamic characteristics in the pitching posture, and the completion of pitching motion is the foundation for the realization of its behavior bionics, basic swimming motion and function.In order to study the hydrodynamic characteristics of the bionic squid’s flexible tentacles in its pitching posture, the bionic squid was selected as the biomimetic object, and the flexible tentacle bending model at different pitching angles was established through the biomimetic squid simplified model.According to the 3 D model, the hydrodynamic characteristics of biomimetic squid in different pitching postures and different bending degrees of tentacle were analyzed and compared by numerical simulation method.Through analysis: when the biomimetic squid uses flexible tentacle to coordinate swimming, it provides a favorable moment 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 tentacle, and it requires less energy consumption.The results may lay a foundation for the research on the flexibility and swimming behavior of biomimetic squid.
作者
黄小双
孙翁杰
王静峰
孔祥洪
刘必林
陈新军
HUANG Xiaoshuang;SUN Wengjie;WANG Jingfeng;KONG Xianghong;LIU Bilin;CHENXinjun(College ofMarine Sciences,Shanghai Ocean University,Shanghai 201306,China;College of Information Technology,Shanghai Ocean University,Shanghai 201306,China;College of Engineering Science and Technology,Shanghai Ocean University,Shanghai 201306,China;National Engineering Research Center for Ocean in Fisheries,Shanghai 201306,China;Key Laboratory ofSustainable Development ofOceanic Fisheries Resources,Ministry ofEducation,Shanghai 201306,China;Key Laboratory ofOceanic Fisheries Exploration,Ministry ofAgriculture and Rural Affairs,Shanghai 201306,China)
出处
《上海海洋大学学报》
CAS
CSCD
北大核心
2022年第1期252-260,共9页
Journal of Shanghai Ocean University
基金
国家重点研发计划(2019YFD0901404)
国家自然科学基金(41876141)
上海市科技创新行动计划(10DZ1207500)
2020年地方院校能力建设项目(20050501800)。
关键词
仿生
鱿鱼
俯仰游动
软体特征
机动性
数值模拟
bionics
squid
pitching
flexible characteristics
maneuverability
numerical simulation
