基于动力学和水力动力学分析的牛鼻的胸推进参数的等效规律
Yiwei Hao1,2,3, Wenze Zhang2, Ao Liu2
1School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China.
The Journal of experimental biology
|November 4, 2025
概括
牛鼻通过振幅频率调制来调整胸的速度来控制游泳速度. 这项研究揭示了它们高效的推进机制,为生物灵感机器人提供了洞察力.
科学领域:
- * * 海洋生物学 海洋生物学
- * 生物力学 生物力学
- * 机器人技术 机器人技术
背景情况:
- * 鱼体通过速度调节表现出高的游泳效率.
- *以前的研究暗示了牛鼻射线动力学和速度之间的联系,但确切的关系尚不清楚.
研究的目的:
- * 为了阐明乳房的运动和牛鼻 (Rhinoptera javanica) 的推进性能之间的动态关系.
- * 为了解它们独特的推进机制建立一个框架.
- *为生物灵感的水下机器人控制提供理论基础.
主要方法:
- * 胸运动的综合动力学分析与水力动力学实验.
- *分析了翅膀速度,振幅频率调制和斯特鲁哈尔数 (St).
- * 开发并测试了一种生物灵感的机器人,模仿了八角形翅膀运动.
主要成果:
- *翅膀速度与游泳速度呈现线性相关性,由振幅频率调制驱动.
- * 斯特鲁哈尔数随着速度的增加而下降,通常在最佳的0.2-0.4范围内.
- *胸在向上和向下冲动时产生了类似的推力,遵循单模模式.
- *发现了一个参数等价定律:恒定频率-振幅乘积 (fA) 产生了一致的平均推力.
- * 推力与fA正相关,证实通过翅膀速度调节速度.
结论:
- * 牛鼻可以通过翅膀的速度和协调的动力调节来动态调节游泳速度.
- *这种推进策略在各种条件下确保了高效率.
- *这些发现提升了对射线运动的理解,并为生物灵感水下机器人的设计提供了信息.
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