瓶鼻海豚 (Tursiops truncatus) 飞滑行方式的动力学和能量学

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Ding Zhang¹, Yifan Wang¹, Joaquin Gabaldon²

¹Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.

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|June 22, 2023

概括

海豚使用飞和滑翔 (FG) 的游泳方式来节省能源. 这项研究模拟了FG步态,显示与连续游泳相比,FG步态降低了27%的运输成本.

科学领域:

生物力学生物力学
动物的运动动物的运动
海洋哺乳动物生理学

背景情况:

在各种环境中观察到间歇性运动 (飞翔和滑翔).
在海豚中,飞滑行 (FG) 的能量效益尚未得到充分研究.
玻璃鼻海豚 (Tursiops truncatus) 具有复杂的游泳步态.

研究的目的:

开发一种基于物理的模型,用于玻璃鼻海豚的FG步态.
分析与FG步行相关的能源运输成本 (COT) 和机械运输成本 (MECOT).
与连续游泳相比,量化FG步态的效率优势.

主要方法:

估计的滑翔阻力系数使用生物标记数据从三个海豚 (84小时).
提取了532个滑翔事件,并参数化了783个FG事件进行分析.
利用基于模型的动态分析来调查FG步态的好处.

主要成果:

在大约2.2-2.7 m/s的速度时,FG步态是首选的.
平均FG功率系数为0.45,滑翔时间为5秒.
与连续动相比,FG步行减少了COT18.9%和MECOT27.1%,相比之下,连续动减少了COT18.9%和MECOT27.1%.

结论:

漂浮和滑动步态显著提高了瓶鼻海豚的水平游泳效率.
这项研究为海豚的步态动态和能量策略提供了新的见解.
FG步态代表了海洋哺乳动物运动的有效节能机制.

关键词:

生物传感器传感器爆发和沿海地区.数据驱动的数据驱动.动态建模动态建模断断续续的移动方式.游泳生物力学游泳生物力学

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