The composite mechanism of damping and elasticity for a fish-like flexible propeller
文献类型：期刊论文
| 作者 | Wang, Xiaofei1,2 ; Zhou, Chao2; Wang, Jian1,2
|
| 刊名 | OCEAN ENGINEERING
 |
| 出版日期 | 2022-12-15 |
| 卷号 | 266页码:9 |
| 关键词 | Passive flexible joint Damping joint Passive propulsion |
| ISSN号 | 0029-8018 |
| DOI | 10.1016/j.oceaneng.2022.112642 |
| 通讯作者 | Zhou, Chao(chao.zhou@ia.ac.cn) |
| 英文摘要 | Fish in nature adjust their swimming modes by regulating muscle stiffness under different ocean conditions. Peduncle stiffness plays a significant role in propulsive performance. However, flexible structures designed with single-mechanism elastic components produce optimal propulsive performance only at specific frequencies. Existing structures were difficult to achieve effective propulsion over a wide range of frequencies. To this end, this article firstly proposed a flexible fish-like propeller based on the composite mechanism of damping and elasticity. Combining with the compliance characteristics of the elastic structure at a specific frequency and damping characteristics that the damping force raised rapidly with frequency, the biological propeller maintained a reasonable phase and flapping amplitude in a wide frequency range, ensuring that the passive flexible tail promoted propulsive performance over a wide frequency range. Secondly, based on the blade element theory, fluid forces exerted on the biological propeller were calculated by drag forces and added mass forces. A hydrodynamic-twisting-damping torque (HTDT) model was established to analyze the motion of the passive flexible joint. Finally, the propulsive performance was tested over a grid of torsional stiffness and dynamic damping viscosity. The results showed that torsional stiffness and dynamic damping viscosity significantly influenced the phase and flapping amplitude of the caudal fin. The experimental results further found the optimized combination with the optimal torsional stiffness and dynamic damping viscosity. This work further offers valuable insights into the development and optimization of the fish-like propeller. |
| WOS关键词 | ROBOTIC FISH ; CAUDAL FIN ; LOCOMOTION ; BODY |
| 资助项目 | National Nature Science Foundation of China ; [62003341] ; [61903362] ; [62033013] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000913245300002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Nature Science Foundation of China |
| 源URL | [http://ir.ia.ac.cn/handle/173211/51404]  |
| 专题 | 复杂系统管理与控制国家重点实验室_水下机器人 |
| 通讯作者 | Zhou, Chao |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Artificial Intelligence, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Automat, State Key Lab Management & Control Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xiaofei,Zhou, Chao,Wang, Jian. The composite mechanism of damping and elasticity for a fish-like flexible propeller[J]. OCEAN ENGINEERING,2022,266:9. |
| APA | Wang, Xiaofei,Zhou, Chao,&Wang, Jian.(2022).The composite mechanism of damping and elasticity for a fish-like flexible propeller.OCEAN ENGINEERING,266,9. |
| MLA | Wang, Xiaofei,et al."The composite mechanism of damping and elasticity for a fish-like flexible propeller".OCEAN ENGINEERING 266(2022):9. |
入库方式： OAI收割
来源：自动化研究所
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