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

Abstract

The invention relates to a laser damage ground simulation test system and method in a high-temperature and low-pressure environment. The system comprises a high-temperature laser damage reaction cavity, a high-power medium-frequency induction heater, a multi-component gas supply subsystem, a vacuum subsystem, a high-power optical fiber coupling laser control subsystem, a material response test subsystem, a water cooling subsystem and an integrated control subsystem, the high-temperature laser damage reaction cavity, the multi-component gas supply subsystem and the vacuum subsystem are adoptedto provide a low-pressure environment for a tested sample, the environment atmosphere can be adjusted, and high temperature is loaded to the tested sample in the high-temperature laser damage reactioncavity in an induced current mode through the high-power medium-frequency induction heater; high-energy laser is provided through the high-power optical fiber coupling laser control subsystem to irradiate the tested sample, the material response test subsystem is used for monitoring the surface temperature and the back temperature of the tested sample and shooting the surface damage degree of thetested sample, and the thermal protection material can be damaged by high-energy laser strike in the high-temperature and low-pressure environment in a ground simulation mode.

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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