单脉冲等离子体合成射流对飞行器控制特性研究  

Aircraft Control Characteristics Control Performance Investigation of Single Pulse Plasma Synthetic Jet

作　　者：王春岩 黄护林[1] 徐晗 陈田田 胡锡精[2] Wang Chunyan;Huang Hulin;Xu Han;Chen Tiantian;Hu Xijing(Laboratory of Aerospace Entry,Descent and Landing Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China;Beijing Institute of Control and Electric Technology,Beijing 100038,China)

机构地区：[1]南京航空航天大学航天进入减速与着陆技术实验室,江苏南京211106 [2]北京控制与电子技术研究所,北京100038

出　　处：《航空科学技术》2024年第12期28-39,共12页Aeronautical Science & Technology

基　　金：航空科学基金(2023Z037052002)。

摘　　要：等离子体合成射流(PSJ)激励器通过电弧放电产生的高速射流可以有效提升飞行器的控制效率和精度,克服传统飞行控制技术存在的响应时间长、脱靶量大和效率低等问题。本文基于唯象模型,对PSJ激励器的单脉冲射流性能进行研究。研究发现,增大沉积能量可以有效提升射流的流动性能,使射流的峰值速度、持续时间和冲量明显提升。飞行高度的升高会对射流的流动性能产生消极影响,当飞行高度由0提升至20km时,射流的峰值速度减小约20%,但是射流持续时间基本不变。飞行速度的增大会降低射流的峰值速度,但延长了射流的持续时间,使单脉冲射流产生的冲量显著提高。PSJ控制下的飞行器偏转速率均高于传统气动表面,虽然飞行高度的升高导致其在20km处所达到的偏转速率仅为0处的4%,但是对应的有效性参数高达12.66。本文的研究成果对实现飞行器的高效姿态控制有一定的参考意义。The high-speed plasma jet generated by arc discharge in plasma synthetic jet(PSJ)actuator can effectively improve the control efficiency and accuracy of aircraft.It can optimize the problems of long response time,large miss distance and low efficiency in traditional flight control technology.In this paper,the single pulse jet performance of PSJ actuator has been studied based on the phenomenological model.It is found that increasing the deposition energy can effectively improve the flow characteristics of the jet,and the peak velocity,duration and impulse of the jet are significantly improved.The increase of flight altitude will have a negative impact on the flow characteristics of the jet.When the flight altitude increases from 0 to 20km,the peak velocity of the jet decreases by about 20%,but the duration of the jet remains basically unchanged.The increase of the flight speed will reduce the peak velocity of the jet and prolong the duration of the jet,so that the impulse generated by the single pulse jet is significantly increased.The deflection rate of the aircraft under PSJ control is always higher than that of the traditional aerodynamic surface.Although the increase in flight altitude causes the pitch rate at 20km to be only about 4%of that at 0,the effectiveness parameter is as high as 12.66.The study results provide references for realizing high effective attitude control of aircraft.

关 键 词：飞行器 姿态控制 等离子体合成射流 飞行高度 偏转速率 

分 类 号：V237[航空宇航科学与技术—航空宇航推进理论与工程]