The invention relates to the technical field of flow lift enhancement and drag reduction of aircrafts, and particularly discloses a fluid thrust vector exciter which comprises a machine body, a bistable diaphragm, an excitation piece and two Tesla one-way valves, the machine body is provided with a cavity with an opening, and the cavity is provided with a fluid inlet and a fluid outlet; the bistable diaphragm is fixedly sealed at the opening of the cavity; the excitation piece is a piezoelectric composite fiber membrane, is attached to the bistable membrane, and drives the bistable membrane to realize modal transformation under the action of alternating voltage, so that the volume of fluid in the cavity is changed; the two Tesla one-way valves are respectively communicated with the fluid inlet and the fluid outlet; the fluid thrust vector exciter has the advantages of being light, thin and compact in structure, free of mechanical connecting rod moving parts and the like, can be flexibly arranged in the rear edge of the wing, changes local lifting resistance of the wing, forms pitching or rolling torque, forms fluid thrust vector control, can also play a role of the gas compressor and can be used for blowing and sucking gas in a boundary layer.
本发明涉及飞行器流动增升减阻技术领域,具体公开了一种流体推力矢量激励器,包括机体、双稳态膜片、激励片、和两个特斯拉单向阀,所述机体具有开口的腔室,并且该腔室具有流体进口和流体出口;所述双稳态膜片固定密封于腔室的开口;所述激励片是压电复合纤维膜片,并贴伏于所述双稳态膜片,受交变电压作用,驱动双稳态膜片实现模态转变,实现对腔室内流体容积的改变;两个所述特斯拉单向阀分别连通于流体进口和流体出口;本发明具有结构轻薄、紧凑,无机械连杆运动部件等特点,可灵活布置在机翼后缘内部,改变机翼局部升阻力,形成俯仰或滚转力矩,形成流体推力矢量控制,也能够起到“压气机”的作用,能够用于边界层吹气及吸气。
Fluid thrust vector exciter
一种流体推力矢量激励器
2022-01-21
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
NTRS | 1965
|Online Contents | 1998