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| 1 | Motion Control and Motion Coordination of Bionic Robotic Fish: A Review显示文摘 | Junzhi Yu Ming Wang Huifang Dong Yanlu Zhang Zhengxing Wu | 2018 | Journal of Bionic Engineering2018,15,4: | 19 |
| 2 | 仿生机器鱼自主游动的数值计算方法与机理显示文摘基于计算流体力学(CFD)方法建立了鱼体-流体耦合的三自由度(3-DoF)自主游动计算模型,对仿生金枪鱼模型从静止开始到稳定巡游的过程进行了模拟.计算结果表明:在巡游阶段前进速度的周期平均值非零,而侧向速度和艏摇角速度的周期平均值为零.鱼体前部始终产生阻力,鱼体后部在巡游阶段能够产生少量的推力,而尾鳍始终产生较大的推力.鱼体表面压力分布表明在尾鳍前缘的左右两侧,周期性地交替出现高压和低压区是尾鳍产生较大推力的原因.在加速阶段尾鳍的脱落涡强度大,一个周期脱落的两个涡相互挤压在一起;在巡游阶段鱼体产生的涡和尾鳍产生的涡融合在一起脱落到尾流中,形成反卡门涡街,使得尾鳍有效地吸收鱼体产生的涡中的能量,减少功率消耗. | 冯亿坤 苏玉民 宿原原 刘焕兴 | 2019 | 华中科技大学学报(自然科学版)2019,47,12: | 12 |
| 3 | Dynamic Modeling of a Non-Uniform Flexible Tail for a Robotic Fish显示文摘 | Phi Luan Nguyen Van Phu Do Byung Ryong Lee | 2013 | Journal of Bionic Engineering2013,10,2: | 9 |
| 4 | Dynamic Modeling and Experiment of a Fish Robot with a Flexible Tail Fin显示文摘 | Phi Luan Nguyen Van Phu Do Byung Ryong Lee | 2013 | Journal of Bionic Engineering2013,10,1: | 8 |
| 5 | Thrust and Swimming Speed Analysis of Fish Robot with Non-uniform Flexible Tail显示文摘 | Phi Luan Nguyen Byung Ryong Lee Kyoung Kwan Ahn | 2016 | Journal of Bionic Engineering2016,13,1: | 4 |
| 6 | Impact of Caudal Fin Shape on Thrust Production of a Thunniform Swimmer显示文摘Tuna,known for high endurance cruising,have already inspired several underwater robots and swimming studies.This study uses a biomimetic robotic tuna to investigate how different caudal fin planform geometries affect the thrust production and flow structures during Body and/or Caudal Fin(BCF)swimming.The robot was tethered to a circulating water tunnel,and swimming was simulated by moving water at a constant speed relative to the stationary robot.Three differently shaped caudal fins were tested,one rectangular,one elliptical,and one swept.Area,aspect ratio,and rigidity were kept constant between the three fins to ensure that the effect of caudal fin shape could be isolated.The fins were tested at three freestream velocities and four Strouhal numbers(St)so that comparisons between the fins could be made for a variety of swimming scenarios.The swept fin,which is the tested caudal fin most similar to one found on a fusiform swimmer,had the greatest thrust potential at high St,followed by the elliptical fin.The rectangular fin generally produced the least thrust.It was shown that in addition to producing the most thrust,the swept fin also best stabilized the leading edge vortex that developed during the second half of the stroke. | Alexander Matta Hodjat Pendar Francine Battaglia Javid Bayandor | 2020 | Journal of Bionic Engineering2020,17,2: | 2 |
| 7 | The effects of caudal fin deformation on the hydrodynamics of thunniform swimming under self-propulsion显示文摘To investigate the effects of the caudal fin deformation on the hydrodynamic performance of the self-propelled thunniform swimming,we perform fluid-body interaction simulations for a tuna-like swimmer with thunniform kinematics.The 3-D vortices are visualized to reveal the role of the leading-edge vortex(LEV)in the thrust generation.By comparing the swimming velocity of the swimmer with different caudal fin flexure amplitudes fa,it is shown that the acceleration in the starting stage of the swimmer increases with the increase of fa,but its cruising velocity decreases.The results indicate that the caudal fin deformation is beneficial to the fast start but not to the fast cruising of the swimmer.During the entire swimming process,the undulation amplitudes of the lateral velocity and the yawing angular velocity decrease as fa increases.It is found that the formation of an attached LEV on the caudal fin is responsible for generating the low-pressure region on the surface of the caudal fin,which contributes to the thrust.Furthermore,the caudal fin deformation can delay the LEV shedding from the caudal fin,extending the duration of the low pressure on the caudal fin,which will cause the caudal fin to generate a drag-type force over a time period in one swimming cycle and reduce the cruising speed of the swimmer. | Yi-kun Feng Yu-min Su Huan-xing Liu Yuan-yuan Su | 2020 | Journal of Hydrodynamics2020,32,6: | 1 |
| 8 | 基于CFD的仿生水动力学数值计算方法及其验证显示文摘鱼类经过长期的进化与自然选择,有着优异的水中游动能力,鱼类借助尾鳍能够进行快速高效的定向游动和快速启动/机动,借助胸鳍能够进行前进、后退和灵活的转向。本文基于计算流体力学(CFD)方法,给出适用于求解鱼类尾鳍/胸鳍的刚性运动以及身体躯干的柔性运动的网格划分策略,对仿生尾鳍、仿生胸鳍和仿生鱼在均匀来流中的水动力性能以及仿生鱼在静水中的自主游动进行数值计算。结果表明:基于CFD方法,采用结构与非结构混合的网格划分策略,应用动网格方法能够对仿生鱼的各类鳍及身体躯干的刚性或柔性运动进行有效的模拟,通过与实验结果进行对比,验证了对水动力性能求解的有效性。数值计算方法和验证算例对仿生水动力学的研究具有一定的理论参考意义。 | 冯亿坤 苏玉民 徐小军 刘焕兴 王兆立 | 2024 | 船舶力学2024,28,2: | 0 |
| 9 | 尾鳍柔性变形对仿生机器鱼自主游动性能影响的研究显示文摘基于计算流体力学方法,数值模拟仿生机器鱼3自由度自主游动,比较刚性尾鳍和柔性变形尾鳍的推力、鱼体游动功率消耗和尾鳍前缘处的涡结构。计算结果表明,在相同运动参数下,柔性尾鳍能使机器鱼在加速阶段游得更快,而刚性尾鳍使机器鱼在巡游阶段游得更快;尾鳍柔性变形能降低巡游阶段机器鱼的侧向速度和首摇角速度的波动幅值,有利于航向稳定。游动速度对柔性尾鳍的推力有明显的负面影响,而对刚性尾鳍的推力影响不大。刚性尾鳍适用于机器鱼在较小的尾鳍侧向平移幅值下巡游,而柔性尾鳍适用于机器鱼在较大的侧向平移幅值下巡游。尾鳍的柔性变形会延迟前缘涡的产生和脱落,导致尾鳍在一个游动周期中的某个时间段形成阻力,不利于机器鱼高速巡游。 | 冯亿坤 苏玉民 刘焕兴 王兆立 徐小军 | 2022 | 中国造船2022,63,5: | 0 |