System and method for predicting ice accretion on surface of aircraft through rolling forecast within short time

Abstract

The invention discloses a system and a method for predicting ice accretion on the surface of an aircraft through rolling forecast within a short time. The system comprises a simulated aircraft aerofoil, a sensor system, a data acquisition system and a computer system, wherein the simulated aircraft aerofoil is arranged on an aircraft surface ice accretion monitoring site on the ground; the sensor system is arranged on the simulated aircraft aerofoil and the aircraft surface ice accretion monitoring site; and a sensor is connected with the computer system through the data acquisition system. By the method and the system for predicting the ice accretion of the aircraft on the ground within a short time, meteorological data, ice accretion data and other factors are used as input of a mathematical model capable of predicting the ice accretion on the surface of the aircraft on the ground, the ice accretion thickness in the future several hours is acquired by a rolling forecast algorithm of a support vector machine capable of optimizing parameters by a genetic algorithm, the ice accretion on the surface of the aircraft on the ground can be monitored and warned in real time, and abundant time can be provided for scheduling the ice accretion in an airport. In addition, the method has the advantages of accurate prediction information, high practicability and the like.

Description

technical field [0001] The invention belongs to the technical field of civil aviation airport facilities, and in particular relates to a short-term forecast system and forecast method for aircraft surface ice area using rolling forecast. Background technique [0002] The safe and punctual operation of flights is closely related to meteorological conditions. Icing is one of the important meteorological conditions affecting the normal operation of flights. The ice accumulation on the surface of the aircraft not only destroys the flow field around the aircraft, but also changes the lift resistance and stall angle of attack during takeoff, and severe ice accumulation can also lead to flight accidents. The "11.21" air crash in Baotou in 2004 was caused by the frost on the surface of the wing before takeoff. In icing weather conditions, the aircraft must be deiced before taking off. The deicing process involves the detection of ice accumulation on the surface of the aircraft an...

AI Technical Summary

Problems solved by technology

However, the numerical calculation method of icing mainly considers the freezing of supercooled water droplets in the atmosphere, while the phenomenon of water vapor solidification is not considered, such as the phenomenon of frost accumulation at night

Therefore, the system and method of short-term ice forecasting on the surface of aircraft on the ground have not been reported so far.

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