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A rotating platform for helicopter rotor anti-icing/de-icing tests in an ice wind tunnel

A technology of helicopter rotors and rotating platforms, applied in the field of rotating platforms, can solve the problems of few test platforms and limited space in ice wind tunnels, and achieve the effects of simple and flexible structure, easy processing, and simple structure

Inactive Publication Date: 2019-09-06
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The test is generally carried out in an ice wind tunnel. The existing ice wind tunnel equipment test section in my country has limited space, and there are few ice wind tunnel test platforms suitable for rotating rotors.

Method used

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  • A rotating platform for helicopter rotor anti-icing/de-icing tests in an ice wind tunnel
  • A rotating platform for helicopter rotor anti-icing/de-icing tests in an ice wind tunnel
  • A rotating platform for helicopter rotor anti-icing/de-icing tests in an ice wind tunnel

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Embodiment Construction

[0037] The description of this illustrative embodiment should be taken in conjunction with the accompanying drawings, which should be considered a part of this complete specification. In the drawings, the shapes or thicknesses of the embodiments may be exaggerated and marked for simplification or convenience. Furthermore, parts of each structure in the drawings will be described separately. It should be noted that elements not shown in the drawings or described in words are forms known to those of ordinary skill in the art.

[0038] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that are used in the embodiments. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.

[0039] When describing th...

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Abstract

The invention discloses a rotation platform for a helicopter rotor anti-icing / de-icing test in an ice wind tunnel. The rotation platform comprises a rotor unit, a rotation unit and a bearing unit, wherein the rotor unit comprises an adjustable attack angle coupling, a stationary shaft and a rotor test piece fixing rack for connecting the adjustable attack angle coupling and the stationary shaft; and adjustment holes capable of adjusting the attack angle of the rotor test piece fixing rack are formed in the adjustable attack angle coupling. In the invention, the structure is simple and flexible; and through corresponding connection between the adjustment holes at different positions on the adjustable attack angle coupling and fixing holes in the rotor test piece fixing rack, the angle adjustment with an interval of 10 degrees can be realized for each rotor test piece fixing rack, and the attack angle range of the rotor unit is flexibly adjusted. Moreover, after refitting the rotor test piece, the parameters such as surface and icing condition of the inside and surface can be measured. Meanwhile, the energy consumption is low, and the feasibility is high.

Description

technical field [0001] The invention relates to a rotating platform used for anti-icing / deicing tests of helicopter rotors in an ice wind tunnel, belonging to the technical field of anti-icing and deicing tests. Background technique [0002] When helicopters operate at high altitudes, they will encounter supercooled water droplets in the cold air, forming ice accumulation on the surface of the rotor. When the ice accumulation is severe, the aircraft will lose control and crash. In order to solve this problem, the existing anti-icing and de-icing methods mainly adopt electrothermal de-icing. In this method, the electric heating wire is pre-buried inside the rotor skin, and it needs to be determined by experiment during the test flight. [0003] The test is generally carried out in an ice wind tunnel. The existing ice wind tunnel equipment test section in my country has limited space, and there are few ice wind tunnel test platforms suitable for rotating rotors. [0004] In v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64F5/60
Inventor 陈龙张以都吴琼
Owner BEIHANG UNIV
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