Miniature wing surface electric heating deicing system icing wind tunnel test device

Abstract

The invention discloses a miniature wing surface electric heating deicing system icing wind tunnel test device. A miniature wing sample, fastening nuts and self-locking pads are cooperatively arranged between the two side walls of an icing wind tunnel through a connecting rod and a hollow connecting rod, a rocking arm, a Z-shaped pointer, and a handle are arranged at the outer side of the icing wind tunnel at the side of the connecting rod, a corner scale is marked on the outer wall surface of the side wall of the icing wind tunnel, and the upwind angle of the miniature wing sample can be conveniently adjusted at the beginning of the test and in the process of the test according to the test requirement. The connecting rod and the hollow connecting rod are provided with the fastening nuts, the relative position of the miniature wing sample in the icing wind tunnel can be adjusted through the fastening nuts, the self-locking pads are arranged on the connecting rod and between the fastening nuts and the side walls of the icing winding tunnel, and the relative position of the miniature wing sample can be fixed after the nuts are fastened. The connection manners of the components can guarantee the axis of the rocking arm and the indicating section of the Z-shaped pointer to be parallel to the string of the miniature wing sample, so that the indicating angle of the Z-shaped pointer, namely, the upwind angle of the miniature wing sample can be guaranteed, and the accuracy of the angle readings can be guaranteed.

Description

technical field [0001] The invention relates to an ice wind tunnel test device, in particular to an ice wind tunnel test device for a small airfoil electric heating deicing system. Background technique [0002] The aircraft's electric heating deicing system is an aircraft anti-icing / deicing system that converts electrical energy into heat energy, uses thermal energy to melt the ice layer, breaks the adhesion between the ice layer and the skin, and performs deicing with the help of aerodynamic force. With the development of aircraft power systems, researchers have paid more and more attention to the application of electric heating and deicing systems on aircraft. [0003] In the existing published technical literature, foreign researchers' research on electric heating deicing mainly focuses on the heat transfer characteristics, mechanical properties of the ice layer and the formation of ice ridges during the deicing process. From the 1970s to the 1990s, researchers carried o...

AI Technical Summary

Problems solved by technology

Due to the small airfoil electric heating deicing test process, the exact initial windward angle of the small airfoil needs to be set according to the specific requirements of the test, and the rotating multi-cylindrical measuring instrument ice wind tunnel test device cannot determine the initial windward angle of the sample at the beginning of the test. Angle, and can not be connected with the small airfoil sample, can not be used in small airfoil electric heating deicing system ice wind tunnel test

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