SLD icing detection method based on ice shape growth and icing detector

Abstract

The invention discloses an SLD icing detection method based on ice shape growth and an icing detector. The method is carried out according to the following steps: S1 carrying out simulation to obtainsimulation icing time required for icing the maximum annular wall (2) of the windward side of a spherical probe (1) to a preset thickness; S2 collecting the actual icing thickness on the maximum annular wall (2) of the windward side of the spherical probe (1) in flight within the simulated icing time; and S3 comparison operation processing: comparing and operating the preset thickness and the actual thickness, and outputting an operation result. The icing detector has the advantages of being simple in structure, convenient to machine, low in cost and high in detection precision.

Description

technical field

[0001] The invention belongs to the technical field of aircraft icing detection, and relates to an SLD icing detection method based on ice shape growth and an icing detector. Background technique

[0002] In the field of aircraft icing detection, icing detection is performed by installing an icing detector on the side of the nose of the aircraft. In icing detection, water droplets with an average droplet diameter (Median Volumetric Diameter, MVD) less than 50 μm are usually called normal water droplets, and water droplets greater than or equal to 50 μm are called large water droplets. The Supercooled Large Droplet (SLD) in the large water droplet has a larger mass than the normal water droplet, so it is easy to flow and freeze on the surface of the aircraft, which increases the probability of icing on the non-protected parts of the aircraft, thereby increasing the flight risk.

[0003] The publication number is CN102336272A, which discloses an icing detector...

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