Aircraft ground thermal simulation test apparatus capable of rapidly cooling

Abstract

The invention discloses an aircraft ground thermal simulation test apparatus capable of rapidly cooling. The aircraft ground thermal simulation test apparatus comprises an air compressing system (A), a water / liquid nitrogen supply system (B), a first test piece heating-cooling test platform (C), a second test piece heating-cooling test platform (D), and a data acquisition and control system (E). The aircraft ground thermal simulation test apparatus can effectively integrate the heating and cooling systems of an aircraft, test piece position can be exchanged between a heating end and a cooling end on the heating-cooling test platform through a linear slide rail, after the test piece reaches a predetermined temperature, the test piece moves along the track and triggers a stroke switch so that a cooling working medium is released, rapid starting for cooling is realized, heating and cooling simulation test processes can be effectively connected; urgent demand for exploitation of novel high-speed aircrafts and guarantee of flight safety can be satisfied, and a ground thermal simulation test method can be improved.

Description

technical field [0001] The invention belongs to the technical field of high-speed aircraft thermal simulation, and relates to an aircraft ground thermal simulation test device capable of rapid cooling. Background technique [0002] The increase in the flight speed of high-speed aircraft (especially hypersonic aircraft) deteriorates the thermal environment faced by the aircraft, which will generate severe aerodynamic heating during flight, and the surface temperature of the body will rise to over 1000°C under the action of aerodynamic heating , and due to the deceleration of the aircraft and other factors during the flight, the high-temperature surface may experience a rapid cooling process. The rapid cooling of the high-temperature surface will cause excessive thermal stress, seal failure, structural deformation and damage, and seriously affect the safety and normal flight of the aircraft. For some components and materials, it is necessary to simulate their rapid cooling pr...

AI Technical Summary

Problems solved by technology

[0004] However, most of the thermal simulation test devices at home and abroad are for aerodynamic heating process simulation. For example, infrared radiation heaters or graphite heaters are used as heat sources to simulate aerodynamic heating heat flow and test the specific performance of materials and components under the action of aerodynamic heat, which cannot meet the cooling requirements. The test requirements for process simulation, and there are few reports of similar cooling simulation devices in the literature

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