Test simulation device and method for fire heating environment of rocket launching site

Abstract

The invention provides a test simulation device and method for fire heating environments of a rocket launching site. The test simulation device comprises a heater (1), a mixing stabilizing chamber (2), a decelerating stabilizing chamber (3), a test nozzle (4) and a model support (5). The gas flow generated by the heater flows into the mixing pressure stabilizing chamber, a normal temperature gas is radially injected into the upstream of the mixing stabilizing chamber (2) and mixed with the gas flow generated by the heater (1), the mixed airflow enters a deceleration stabilization chamber (3),decelerates the airflow through the deceleration stabilization chamber (3) and eliminates the airflow pulsation and enters a test nozzle (4), and the airflow ejected from the test nozzle (4) simulatesthe fire heating environment of a rocket launching site; the model support (5) is placed at the outlet of the test nozzle (4), and the test model (6) is freely placed in the model support (5).

Description

technical field [0001] The invention relates to a ground test device and method for simulating the heating environment of a carrier rocket when a fire is caused by a launch failure at a launch site, and is used to verify and evaluate whether a fire at a rocket launch site may cause burning, melting, or rupture of important or high-risk components carried and so on. Background technique [0002] The launch of a carrier rocket is a very dangerous thing, and there have been major launch accidents in all major aerospace countries around the world. The failure of the rocket launch may cause damage to the satellite spacecraft and other equipment carried by the rocket or fail to enter the predetermined orbit, or cause devastating damage to the rocket launch site and other facilities within a few kilometers around the rocket landing point. The Falcon 9 medium-sized launch vehicle of the famous American Space Exploration Technologies Corporation failed in September 2016 and exploded...

AI Technical Summary

Problems solved by technology

The fire simulation tests of the launch sites of the United States and Russia are all under-evaluated. They have not reached the highest temperature when the launch failure caused the fire, and they have not realized the low-temperature heating environment of the fire site for a long time (about 1 hour). There are certain potential safety hazards.

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