An active heat dissipation test system and method for aircraft control rudder tip leading edge

Abstract

The invention relates to an active type thermal transmission test system and method of a sharp leading edge of an aircraft control rudder, in particular to the active type thermal transmission test system and method of the sharp leading edge of the aircraft control rudder in accordance with Na-K alloy working substances, and belongs to the technical field of thermal protection of the aircraft control rudder. The active type thermal transmission test system comprises a heater, a temperature measuring system, a temperature control system, air-cooled temperature reduction equipment and a power source. Through the adoption of the active type thermal transmission test system and method of the sharp leading edge of the aircraft control rudder disclosed by the invention, active type thermal transmission performance examination and test of the sharp leading edge of the aircraft control rudder based on the Na-K alloy working substances is successfully developed; the problem of the continuous and stable loading of a product with a special aerodynamic configuration under the condition of a long-time high temperature high thermal flow is solved; the active type thermal transmission test systemand method can be popularized to active type thermal transmission product performance examination and test of products of all kinds of working substances and various configurations; and the active type thermal transmission test system and method have good generality.

Description

technical field [0001] The present invention relates to an aircraft control rudder tipping leading edge active heat dredging test system and method, in particular to an aircraft control rudder tipping leading edge active heat dredging test system and method for sodium-potassium alloy working fluid, which belongs to the aircraft control rudder thermal protection technology field. Background technique [0002] When an aircraft with hypersonic flight, high maneuvering orbit change and quick response capabilities flies at high speed or re-enters the atmosphere near space for a long time, the aerothermal environment experienced by local areas such as rudders, wing leading edges and nose cones is more severe than other locations. In particular, the air rudder located on the outer surface of the aircraft is an important part to adjust the flight attitude and flight trajectory, and its aerodynamic shape and structural safety must be guaranteed during long-term flight. The concept o...

AI Technical Summary

Problems solved by technology

As for the sodium-potassium alloy working medium with active heat dissipation function, it absorbs heat from the heating section and changes from a liquid state to a gaseous state, and flows to the heat dissipation section under the impetus of saturated vapor pressure, and then turns back to a liquid state through radiation heat dissipation or convective cooling. The single cycle time is far longer than the test time of the shock tunnel, which cannot meet the special aerodynamic shape of the leading edge of the control rudder tip and the particularity of the long-term test

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