High-voltage transmission slip ring device for plasma flow control of propeller

Abstract

The invention relates to a high-voltage transmission slip ring device for plasma flow control of a propeller, and belongs to the technical field of plasma flow control. The high-voltage transmission slip ring device comprises a propeller hub, a synchronous rotating slip ring and two carbon brush brackets, wherein carbon brushes on the two carbon brush brackets are connected with a high-voltage output end and an earth terminal of an excitation power supply respectively; an insulating sleeve is arranged on each carbon brush bracket, so that the carbon brushes are insulated from an external experiment platform; and meanwhile, the carbon brushes slide along the axial directions of the sleeves and can be adjusted. The synchronous rotating slip ring is provided with two electrode rings, which are a high-voltage electrode ring and an earth electrode ring respectively; two sides of each electrode ring are provided with insulating gaskets; and insulating inner rings are arranged at the inner sides of the electrode rings to be assembled with the electrode rings. The electrode rings are connected with a plasma exciter of a paddle through high-voltage leads; and notches are formed in the insulating inner rings, so that each electrode ring can be communicated with two leads. The high-voltage transmission slip ring device is compact in structure, simple in processing of parts, convenient to dismantle and assemble, high in reliability, good in dynamic balance and convenient to maintain.

Description

technical field [0001] The invention relates to a high-pressure conveying slip ring device, in particular to a high-pressure conveying slip ring propeller hub integrated device for propeller plasma flow control, which is applied to a propeller plasma flow control experimental platform and belongs to the technical field of plasma flow control. Background technique [0002] At present, Surface Dielectric Barrier Discharge (SDBD) is an important research direction of plasma flow control technology, mainly in the field of two-dimensional flow. Pneumatic separation has the effect of increasing lift and reducing drag. At the same time, the required experimental equipment has been equipped and perfect experimental conditions have been established. However, at present, the research on SDBD plasma flow control of propeller three-dimensional flow field is still in the stage of numerical simulation. The schematic diagram of blade and SDBD actuator is shown in figure 1 As shown, it is ...

AI Technical Summary

Problems solved by technology

In terms of high-voltage transmission, the output ends of the existing high-voltage slip ring rotor electrodes are mostly rigid bolts or metal plates, which are located on the end face of one side of the slip ring, and are difficult to assemble and fix with the propeller hub

At the same time, the radius of the electrode on the high-voltage slip ring is larger than that of the insulating layer, and the protruding parts of the two electrodes form an air capacitor. When high-frequency high-voltage electricity is connected, it is easy to break down the air and generate an arc.

Images