基于回归模型的SDBD-PA击穿特性试验研究

doi:10.3901/JME.2021.22.369

机械工程学报 ›› 2021, Vol. 57 ›› Issue (22): 369-375.doi: 10.3901/JME.2021.22.369

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基于回归模型的SDBD-PA击穿特性试验研究

张扬辉, 胡兴军, 刘一尘, 李久超, 余天明, 桑涛, 王靖宇

吉林大学汽车仿真与控制国家重点实验室长春 130025

收稿日期:2021-01-13 修回日期:2021-06-28 出版日期:2021-11-20 发布日期:2022-02-28
通讯作者: 余天明(通信作者),女,1977年出生,博士,副教授,硕士研究生导师。主要研究方向为汽车空气动力学及车身先进制造技术。E-mail:yutm@jlu.edu.cn
作者简介:张扬辉,男,1994年出生,博士研究生。主要研究方向为等离子体流动控制。E-mail:1950175242@qq.com;胡兴军,男,1976年出生,博士,教授,博士研究生导师。主要研究方向为汽车空气动力学。E-mail:hxj@jlu.edu.cn;王靖宇,男,1976年出生,博士,副教授,硕士研究生导师。主要研究方向为汽车空气动力学。E-mail:wangjy@jlu.edu.cn
基金资助:
国家自然科学基金资助项目（51875238）。

Experimental Study on Breakdown Characteristics of SDBD-PA Based on Regression Model

ZHANG Yanghui, HU Xingjun, LIU Yichen, LI Jiuchao, YU Tianming, SANG Tao, WANG Jingyu

State Key Laboratory of Automobile Simulation and Control, Jilin University, Changchun 130025

Received:2021-01-13 Revised:2021-06-28 Online:2021-11-20 Published:2022-02-28

摘要/Abstract

摘要： 近年来，表面介质阻挡放电等离子体激励器（Surface dielectric barrier discharge plasma actuator，SDBD-PA）已经成为流动控制领域的研究热点。为研究SDBD-PA的击穿特性，为SDBD-PA相关研究的参数区间选取提供参考，首先采用控制变量法研究各激励器参数对SDBD-PA击穿电压和放电稳定性的影响，然后选取对击穿电压有影响的激励器参数，基于DOE方法进行试验，使用Isight软件建立二次回归模型并分析激励器参数对击穿电压的影响。研究结果表明，对SDBD-PA击穿电压和放电稳定性有影响的参数包括频率f、电极间隙d₁和激励器长度L；拟合所得三元二次回归模型经验证具有良好的精确度，可作为SDBD-PA击穿电压的预测模型；对SDBD-PA击穿电压影响最大的参数是f，其次为L和d₁；f和L对击穿电压的影响为负效应，d₁对击穿电压的影响为正效应；d₁和f之间以及f和L之间的交互作用对击穿电压也有很大影响，d₁和L之间的交互作用对击穿电压的影响非常小。

关键词: 介质阻挡放电, 击穿电压, 回归模型

Abstract: The fluid-structure coupled vibration behavior of flexible structure has been widely applicated in bionic robot, underwater autonomous vehicle, precision instrument, medical Engineering, and so on. Macro fiber composite (MFC) possesses the advantages of being highly flexible and waterproof, with large actuation ability. Thus, MFC actuator is a perfect option for active deformation control of underwater flexible structure. The fluid-structure coupled dynamic model of an MFC-actuated flexible structure is established, both the internally actuation moment provided by the MFC actuators and the hydrodynamic load caused by the surrounding fluid are considered. CFD simulations on the cross section of the flexible structure bonded with MFC actuators are conducted. The flow and pressure distributions around the oscillating structure are visualized, and the hydrodynamic forces applied to the flexible structure are also extracted at different non-dimensional oscillating frequencies. Then, expressions of the real and imaginary parts of the hydrodynamic function for the MFC-actuated flexible structure are obtained, respectively. It is demonstrated that the added mass and damping effects of the surrounding fluid weaken with an increase in the non-dimensional oscillating frequency. Moreover, the real part of the hydrodynamic function for the MFC-actuated beam is larger than that of the uniform beam at the same non-dimensional frequency, so is the imaginary part of the hydrodynamic function at a high oscillating frequency. The vibration responses of the proposed underwater structure are obtained experimentally. Experimental results show that the magnitude-frequency and phase-frequency spectrums of the MFC-actuated flexible structure in experiments match well with those of the established model. Accordingly, the effectiveness of the proposed hydrodynamic function and fluid-structure coupled dynamic model for the MFC-actuated flexible structure is validated.

Key words: dielectric barrier discharge, breakdown voltage, regression model

中图分类号:

O461

张扬辉, 胡兴军, 刘一尘, 李久超, 余天明, 桑涛, 王靖宇. 基于回归模型的SDBD-PA击穿特性试验研究[J]. 机械工程学报, 2021, 57(22): 369-375.

ZHANG Yanghui, HU Xingjun, LIU Yichen, LI Jiuchao, YU Tianming, SANG Tao, WANG Jingyu. Experimental Study on Breakdown Characteristics of SDBD-PA Based on Regression Model[J]. Journal of Mechanical Engineering, 2021, 57(22): 369-375.

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基于回归模型的SDBD-PA击穿特性试验研究

Experimental Study on Breakdown Characteristics of SDBD-PA Based on Regression Model

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