Low energy consumption rapid detection and deicing method based on ultrasonic waves

Abstract

The invention relates to the field of ultrasonic application and deicing methods, in particular to a low energy consumption rapid detection and deicing method based on ultrasonic waves. The low energyconsumption rapid detection and deicing method comprises the steps that firstly, an electrothermal method combined with a rapid temperature technology is used for heating the surface of a structure to be -10 DEG C, so that the bonding strength of covering ice is reduced to hundreds of KPa, then an ultrasonic excitation module is turned on, horizontal shear SH waves and lamb waves generated by theultrasonic waves traveling through an ice-covered region are utilized, and speed difference is generated between the covering ice and a base plate interface to form a shear force to cause the covering ice to fall off; and meanwhile, the ultrasonic excitation module can be applied to remote detection of ultrasonic ice accumulation based on the phased array technology, and ice accumulation on the surface of the structure is monitored by collecting feedback ultrasonic signals. The low energy consumption rapid detection and deicing method based on the ultrasonic waves has the advantages of low energy consumption, good deicing effect and no influence on the aerodynamic shape of the surface of the structure.

Description

technical field [0001] The invention relates to the field of ultrasonic application and deicing methods, in particular to a low-energy fast detection and deicing method based on ultrasonic waves. Background technique [0002] As a common means of transportation in modern society, aircraft is also one of the important military weapons, and has increasingly become an inseparable part of modern society. Aircraft icing is one of the important factors known to threaten the safety of aircraft flight. [0003] When the aircraft passes through the cloud layer, the supercooled water droplets in the cloud layer will freeze after contacting the body, or the air with high humidity will condense directly on the body surface in a low temperature environment to form an ice layer. When the outside temperature is lower than zero, when the aircraft passes through the cloud layer containing supercooled large water droplets, the surface will produce obvious ice coating, covering the aircraft's...

AI Technical Summary

Problems solved by technology

Among them, the electric heater heats the surface of the structure with electricity to melt the ice layer. The disadvantage is that it consumes a lot of energy and is easy to form secondary icing. The airbag deicing method breaks and falls off the ice layer through the expansion and contraction of the airbag. The disadvantage is that it will affect the structure. The aerodynamic shape is only suitable for low-speed aircraft; the anti-icing coating method reduces icing by applying a hydrophobic coating on the surface of the structure, no energy loss, but low durability and poor deicing effect

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