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论文:2022,Vol:40,Issue(2):281-287 |
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引用本文： |
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陈晓, 曹勇, 黄桥高, 潘光. 非正弦升沉运动对扑翼自主推进的影响[J]. 西北工业大学学报 |
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CHEN Xiao, CAO Yong, HUANG Qiaogao, PAN Guang. Nonsinusoidal motion effect on a self-propelled heaving foil[J]. Northwestern polytechnical university |
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| 非正弦升沉运动对扑翼自主推进的影响 |
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| 陈晓1,2, 曹勇1,2, 黄桥高1,2, 潘光1,2 |
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1. 西北工业大学 航海学院, 陕西 西安 710072;
2. 西北工业大学 无人水下运载技术工信部重点实验室, 陕西 西安 710072 |
| 摘要: |
| 为了研究仿生推进机理以及仿生机器人，弥补非自主推进的局限性，采用数值方法耦合求解流体动力与扑翼运动，建立扑翼-流体耦合的自主推进计算模型，K作为波形调节参数使波形由三角波变为正弦波以及方波，数值模拟了2个频率-升沉幅值组合下非正弦升沉运动的自主推进性能，研究在静水中不同运动波形对自主推进速度、自主推进效率以及流场结构的影响。结果表明非正弦波形对自主推进运动影响很大，随着K的增大即越接近方波，速度振荡越剧烈，起动加速越快，前进位移与平均速度越大;随着K的减小，自主推进效率及能量利用率不断增大，研究结果对仿生水下航行器的设计有一定指导意义。 |
| 关键词:
扑翼
非正弦运动
自主推进
仿生推进
数值模拟
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| Nonsinusoidal motion effect on a self-propelled heaving foil |
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| CHEN Xiao1,2, CAO Yong1,2, HUANG Qiaogao1,2, PAN Guang1,2 |
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1. School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China;
2. Key Laboratory of Unmanned, Underwater Vehicle Technology of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| In order to explore the mechanism of bionic propulsion and bionic robots, to make up for the limitations of traditional propulsion with a uniform incoming flow, numerical methods are used to couple fluid dynamics and flapping foil motions, and a flapping-fluid coupling self-propulsion calculation model is established in this paper. K is used as the waveform adjustment parameter to change the waveform from triangle wave to sine wave and square wave. The self-propulsion performances of non-sinusoidal heave motion under two frequency-heaving amplitude combinations are numerically simulated to study the influence of different motion waveforms on self-propulsion velocity, efficiency and flow field structure in still water. The results show that the non-sinusoidal waveform has a great influence on the self-propulsion. With the increase of K, the closer to the square wave, the more violent the speed oscillation, the faster the starting acceleration, the greater the forward displacement and the average speed, as K decreases, self-propulsion efficiency and energy utilization continue to increase. The results of this study have certain guiding significance for the design of bionic underwater vehicles. |
| Key words:
heaving foil
nonsinusoidal motion
self-propulsion
bionic propulsion
numerical simulation
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| 收稿日期: 2021-07-26
修回日期:
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| DOI: 10.1051/jnwpu/20224020281 |
| 基金项目: 国家自然科学基金（51879220，52001260）、国家重点研究发展计划（2016YFC0301300，2020YFB1313201）与中央高校基本科研业务费专项基金（3102019HHZY030019，3102020HHZY030018）资助 |
| 通讯作者: 曹勇(1988-),西北工业大学助理研究员,主要从事仿生航行器设计研究。e-mail:cao_yong@nwpu.edu.cn
Email：cao_yong@nwpu.edu.cn |
| 作者简介: 陈晓(1993-),女,西北工业大学博士研究生,主要从事水动力学及水动力实验研究。
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| 作者相关文章 |
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| 陈晓 在本刊中的所有文章 |
| 曹勇 在本刊中的所有文章 |
| 黄桥高 在本刊中的所有文章 |
| 潘光 在本刊中的所有文章 |
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