Design and hydrodynamic analysis of pectoral fin oscillation propulsion mechanism of bionic manta ray

被引：1
|
作者：
Yun Z. [1 ]
Wen M. [1 ]
Jiang Y. [1 ]
Chen L. [1 ]
Feng L.-F. [1 ]
机构：
[1] College of Mechanical and Electrical Engineering, Central South University, Changsha
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2019年 / 53卷 / 05期
关键词：
Bionic manta ray; Fluent; Numerical simulation; Pectoral fin oscillation propulsion; Performance analysis;
D O I：
10.3785/j.issn.1008-973X.2019.05.007
中图分类号：
学科分类号：
摘要：
A bionic pectoral fin oscillation propulsion mechanism of manta ray and its swing mode were designed to improve the propulsive efficiency of unmanned undersea vehicle (UUV). A crankshaft joint crank rocker mechanism, which achieved mutual decoupling between swing amplitude and jerk factor, was designed to achieve the specific swing mode of the bionic pectoral fin, based on the study of the pectoral fin movement mechanism of manta rays. The motion equation of the bionic pectoral fin was derived and established, and the hydrodynamic performance of unilateral pectoral fin in the swing mode was analyzed by numerical simulation, and the superiority of this swing mode relative to the sine swing mode was verified according to the set propulsion performance evaluation index. The advancement and steering performance of the device was verified by the experiments, and the relationship between the amplitude and frequency of the pectoral fin swing as well as the speed of the device was analyzed. Experimental results showed that the bionic pectoral fin oscillation propulsion mechanism can realize the predetermined movement of UUV, such as advancement and steering, and meet the basic propulsion requirements. © 2019, Zhejiang University Press. All right reserved.
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页码：872 / 879
页数：7
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