Laser damage ground simulation test system and method under high temperature and low pressure environment

Abstract

The invention relates to a laser damage ground simulation test system and method under high temperature and low pressure environment. The system includes: high temperature laser damage reaction chamber, high power intermediate frequency induction heater, multi-component gas supply subsystem, vacuum subsystem, high power optical fiber Coupling the laser control subsystem, the material response test subsystem, the water cooling subsystem and the integrated control subsystem, the present invention uses a high temperature laser damage reaction chamber, a multi-component gas supply subsystem and a vacuum subsystem to provide a low pressure environment for the sample to be tested, and The ambient atmosphere can be adjusted, and the high-power medium-frequency induction heater is used to load the high-temperature laser damage reaction chamber with high temperature on the sample to be tested in the form of induced current, and the high-power fiber-coupled laser control subsystem provides high-energy laser to irradiate the sample to be tested. And use the material response test subsystem to monitor the temperature of the surface and back of the tested sample, and take pictures of the damage degree of the tested sample surface, which can simulate the high-energy laser hitting and damaging the thermal protection material in the high-temperature and low-pressure environment on the ground.

Description

technical field [0001] The invention relates to the technical field of ground simulation testing, in particular to a ground simulation testing system and method for laser damage in a high temperature and low pressure environment. Background technique [0002] Hypersonic aircraft refers to aircraft with a flight speed greater than Mach 5. After more than 60 years of development, hypersonic aircraft has formed three main development directions: hypersonic cruise, re-entry gliding, and space-to-ground round-trip. Multiple flight tests. Due to the hypersonic flight capability, the emergence of hypersonic aircraft poses a huge challenge to the existing air defense system. The existing air defense and anti-missile system is based on traditional weapon systems such as aircraft and ballistic missiles. For hypersonic targets, although early warning can be provided, the fire control system cannot effectively track and guide them. It also cannot meet the needs of intercepting hyperso...

AI Technical Summary

Problems solved by technology

Unfortunately, so far, there is no test device capable of simulating high-energy laser strikes on aircraft surface thermal protection materials in high-temperature (temperature above 1000-2500°C) and low-pressure environments (10-10000Pa) during hypersonic flight. , it is impossible to realize the characterization and evaluation of laser strike damage to thermal protection materials under flight conditions

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