Airplane component strength test high-temperature thermal environment simulation device and method thereof

Abstract

The invention belongs to the technical field of airplane component strength test, and particularly relates to an airplane component strength test high-temperature thermal environment simulation device, which comprises: a high-temperature thermal environment box, an inert gas inlet communicated with the internal space of the high-temperature thermal environment box and an inert gas outlet communicated with the internal space of the high-temperature thermal environment box are arranged on the high-temperature thermal environment box; an airflow diffusion nozzle which is arranged in the inert gas inlet; a micro-positive pressure relief valve which is arranged at the inert gas outlet; and a graphite heating element which is arranged in the internal space of the high-temperature thermal environment box so as to carry out radiation heating on the aircraft parts located in the internal space of the high-temperature thermal environment box. In addition, the invention relates to an aircraft component strength test high-temperature thermal environment simulation method which is implemented based on the aircraft component strength test high-temperature thermal environment simulation device.

Description

technical field [0001] The application belongs to the technical field of strength testing of aircraft components, and in particular relates to a high-temperature thermal environment simulation device and a method thereof for strength testing of aircraft components. Background technique [0002] When a hypersonic vehicle passes through the atmosphere, the surface is subjected to severe aerodynamic thermal loads. When performing strength tests on its related components, it needs to be heated to simulate this high-temperature thermal environment. [0003] Graphite has stable chemical properties and strong plasticity, and is easy to process into various shapes. It can provide a heat flux as high as 5.6MW / m2. In some aircraft component strength tests, graphite heating elements are designed for radiant heating to simulate the high temperature heat of aircraft components. environment. [0004] In a high-temperature environment, graphite is easily oxidized, causing its cross-sectio...

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Problems solved by technology

[0005] 1) It is difficult to ensure effective vacuum in the vacuum tank, the reliability is poor, and the operating cost is high;

[0006] 2) Low pressure in the vacuum tank, in this environment, the graphite heating element is prone to discharge

[0007] The above-mentioned defects of the existing scheme make it difficult to realize the effective simulation of the high-temperature thermal environment in which the aircraft components are located during the strength test of the aircraft components, fail to obtain accurate test data, and cannot provide effective data for the design and improvement of aircraft components support

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