SIA OpenIR  > 海洋机器人卓越创新中心
基于数值计算方法的矢量合成射流激励器推力特性研究
Alternative TitleStudy on the force characteristics of a vectored synthetic jet actuator based on numerical method
耿令波1,2; 衣瑞文1,2; 林扬2; 胡志强2; 王超1,2
Department海洋机器人卓越创新中心
Source Publication船舶力学
ISSN1007-7294
2018
Volume22Issue:5Pages:528-539
Indexed ByEI ; CSCD
EI Accession number20183505747921
CSCD IDCSCD:6246609
Contribution Rank1
Keyword水环境 合成射流 推力矢量 作用机理 推力模型
Abstract

合成射流激励器具有体积小、质量轻、结构简单、对流体外形影响小等优点,非常适合用于水下机器人的驱动及姿态调节。文章设计了一种矢量合成射流激励器,该激励器的出口是柔性的,采用线驱动方式实现出口偏转角度的连续调节,进而实现推力的矢量控制。建立了用于控制激励器出口偏转角度的数学模型,以及激励器作用力的数学模型。采用有限体积法对该矢量合成射流激励器在不同偏转角度下的流场进行了数值计算,流场设定为三维、粘性、非定常和不可压流场,给出了不同偏转角度下激励器在各个方向上的作用力变化曲线。通过对作用力的计算结果进行分析发现,合成射流的推力比相同质量流量下稳态射流的推力提高50%。另外,还发现激励器各方向作用力的合力基本不随偏角发生改变。结合文中建立的激励器作用力数学模型进行分析,可知合成射流的推力增强效应主要是由激励器外部流体的阻滞作用引起的。

Other Abstract

Synthetic jet is a new type of underwater propulsion method with the merit of small size, light weight and high efficiency, all of which makes it a good choice for the propulsion and steering of underwater robots. In this paper, a vectored synthetic jet actuator with a flexible jet nozzle is proposed. The deflection angle of the flexible jet nozzle can be adjusted continuously by the differential actuation of 3 ropes. The actuation model of the flexible jet nozzle and the mathematical model of the propulsion force are established. The 3D, unsteady, viscosity and incompressible flow-field of the vectored jet actuator with different deflection angle is analyzed by using finite volume method. It can be seen that the propulsion efficiency of synthetic jet is 50% higher than the normal steady jet by the analysis of the force results of the numerical computation. It can also be seen that the resultant force of different directions keeps unchanged despite the variation of the deflection angle of the flexible jet nozzle. Combined with the mathematical model established in this paper the conclusion that the high efficiency of the synthetic jet is mainly caused by the resistance of the outflow of the actuator can be drawn.

Language中文
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/21847
Collection海洋机器人卓越创新中心
Corresponding Author胡志强
Affiliation1.中国科学院大学;
2.机器人学国家重点实验室中国科学院沈阳自动化研究所
Recommended Citation
GB/T 7714
耿令波,衣瑞文,林扬,等. 基于数值计算方法的矢量合成射流激励器推力特性研究[J]. 船舶力学,2018,22(5):528-539.
APA 耿令波,衣瑞文,林扬,胡志强,&王超.(2018).基于数值计算方法的矢量合成射流激励器推力特性研究.船舶力学,22(5),528-539.
MLA 耿令波,et al."基于数值计算方法的矢量合成射流激励器推力特性研究".船舶力学 22.5(2018):528-539.
Files in This Item: Download All
File Name/Size DocType Version Access License
基于数值计算方法的矢量合成射流激励器推力(4592KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[耿令波]'s Articles
[衣瑞文]'s Articles
[林扬]'s Articles
Baidu academic
Similar articles in Baidu academic
[耿令波]'s Articles
[衣瑞文]'s Articles
[林扬]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[耿令波]'s Articles
[衣瑞文]'s Articles
[林扬]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 基于数值计算方法的矢量合成射流激励器推力特性研究.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.