Abstract: In order to extend the applications of Dual synthetic jet(DSJ)in thrust vectoring control of unmanned aerial vehicle,it is required to optimize the DSJ actuator structure and improve its vectoring performance. By analyzing the characteristics of DSJ,a method for calculating the jet vectoring angle at a dimensionless distance normalized by the jet stroke was established . Then the influence mechanism of DSJ actuator dimensionless parameters on the jet vectoring angle was analyzed using a single factor experiment. The significant effect order of each parameter is obtained on the jet vectoring angle: exit width > exit length > exits spacing > exit depth > chamber height through range analysis. Thus it can be helpful for the structure parameters design of a DSJ actuator.

Key words: Dual synthetic jet；Jet thrust vectoring；Evaluating indicator；Jet vectoring angle

摘要： 为了拓展合成双射流作动器在无人机推力矢量控制方面的应用,需要对合成双射流作动器结构进行优化,提高其矢量性能。通过分析合成双射流的特性,引入了以射流冲程为基础的无量纲距离,建立了射流矢量角的计算方法,并以此为评价指标,采用单因素试验法分析了合成双射流作动器无量纲结构参数对射流矢量角的影响机制和规律。利用极差分析法获得了各参数对射流矢量角影响的显著程度:出口宽度＞出口长度＞出口间距＞出口深度＞腔体高度,提出了作动器结构参数设计的原则。

关键词: 合成双射流；射流推力矢量；评价指标；射流矢量角