Ground test verification system of subsonic speed cabin level thermal control design

Abstract

The invention provides a ground test verification system of the subsonic speed cabin level thermal control design. The system comprises a test cabin body arranged inside an external flow field channel, wherein a sleeve structure is arranged inside the test cabin body, the sleeve structure is sequentially divided into an air inlet section, a tank lubricator section, an engine body section and a tailpipe section, the air inlet section and the tank lubricator section are blocked, a heating system is adopted for heating the tank lubricator section, the engine body section and the tailpipe sectionseparately, and heat sources for simulating the engine body, the tank lubricator and the tailpipe can be obtained; the system further comprises an air electric heating system connected with the external flow field channel and used for simulating the pneumatic condition at the outer wall of the test cabin body, and a measuring system. The system effectively simulates the pneumatic conditions and the environment inside the cabinet at the outer wall of the test cabin body, meanwhile, the system has the test capability of equipment working heating inside the cabin, high air and ground insistency is achieved, the low-cost advantage is achieved, and verification tests can be performed repeatedly.

Description

technical field [0001] The invention belongs to the overall design technology of aeronautical missiles, and relates to a ground test verification system for subsonic cabin-level thermal control design, which solves the problem of ground test verification of subsonic cabin-level thermal control design schemes. Background technique [0002] Subsonic missiles use a large number of electronic devices and integrated circuits. High-density electronics are housed in the sealed missile bay. As the flight Mach number is getting higher and higher, the flight time is increasing, the functions of missile-borne electronic equipment are constantly developing, the heating power of components is increasing, and the use environment is becoming more and more complex. Facing the problem of overheating, which seriously affects the reliability of the equipment, the thermal control design often needs to verify the correctness and rationality of the design through ground tests. [0003] At prese...

AI Technical Summary

Problems solved by technology

[0003] At present, the ground thermal test run test can truly simulate the two conditions of the engine and accessories working heat and the equipment inside the cabin, but the aerodynamic conditions of the outer wall of the cabin cannot be simulated and verified.

In addition, the working life of the engine is limited, and it is too expensive to repeatedly verify the thermal control design scheme by using the thermal test run test

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