鳐鱼胸鳍模式的运动学建模与仿真  

Kinematics Modeling and Simulation of Pectoral Locomotion in Batoid Fish

作　　者：杨少波[1] 韩小云[1] 邱静[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《国防科技大学学报》2009年第1期104-108,共5页Journal of National University of Defense Technology

基　　金：国家自然科学基金资助项目(50405006);国防科技大学博士研究生创新资助项目(B060302)

摘　　要：由于流场环境中的鱼类动力学建模困难,目前胸鳍模式研究进展受到制约。随着计算机的高速发展和数值计算的进步,将有限元建模应用于水动力学研究,近年来也成为热点。而利用有限元建模,必须进行对象的运动学建模。本文提出了鱼类胸鳍模式的运动学模型,通过物理特征和运动参数探讨了运动波形,简化了鳐鱼胸鳍模式的运动方程,利用运动方程作为模型的运动边界条件,对牛鼻鲼的有限元模型进行仿真,探讨了牛鼻鲼的运动规律,验证了运动学模型的有效性。Due to the difficulty of dynamics modeling in fish surrounding by the fluid, little progress has been made in the design of the current pectoral locomotion. With the rapid development of the high performance computers and numerical methods, finite element modeling applied to explore the hydrodynamics of the fish has become a hot topic recently. The kinematics modeling is usually the first step in sovling the problem. Therefore, the kinematics modeling of pectoral locomotion in fish is proposed. The pectoral locomotion is simulated with the physical character and kinematic parameter, and the kinematie formula of the pectoral locomotion in batoid fish is simplified. Along with the boundary condition of the above kinematic formula, the finite element modeling in Cownose Ray is finally simulated in order to study the kinematics. The simulation modeling, compared with the observation results, is proved to be valid.

关 键 词：胸鳍模式 运动学 仿真 有限元 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]