论文标题
爆发和海岸游泳者通过调整独特的内在周期来优化步态
Burst-and-coast swimmers optimize gait by adapting unique intrinsic cycle
论文作者
论文摘要
本文通过考虑以不同速度游泳的爆发和沿海的状态来解决间歇性游泳的物理机制。爆发和沿岸的状态由一个连续两个阶段的循环组成：由鱼肌肉驱动的活性起伏阶段，然后是一个被动滑行阶段。使用FISH运动学和力学的完整描述，进行了从低速到高速方案的水槽中，其游离步态的观察结果被迫在水流中被迫进行。我们首先表明，Fish通过修改爆发比率的同时维持循环常数的持续时间来调节独特的固有循环，以维持所需的速度。其次，我们使用数值模拟显示所选的运动学对应于测试的游泳速度范围内的优化步态。
This paper addresses the physical mechanism of intermittent swimming by considering the burst-and-coast regime of fish swimming at different speeds. The burst-and-coast regime consists of a cycle with two successive phases: a phase of active undulation powered by the fish muscles followed by a passive gliding phase. Observations of real fish whose swimming gait is forced in a water flume from low to high speed regimes are performed, using a full description of the fish kinematics and mechanics. We first show that fish modulate a unique intrinsic cycle to sustain the demanded speed by modifying the bursting to coasting ratio while maintaining the duration of the cycle constant. Secondly, we show using numerical simulations that the chosen kinematics correspond to optimized gaits over the range of swimming speeds tested.
