Multi-nozzle rocket dynamic jet test system

Abstract

Multi-nozzle rocket dynamic jet test system, including: simulated rocket body, test platform and water spray equipment for reducing noise and protecting the test platform; the outer dimensions of the simulated rocket body and the test platform are designed in proportion to the actual structural size or For linear scaling, the total spray flow of the water spray equipment is k of the actual total spray flow 2 The speed of water spray is consistent with the actual product. The simulated arrow body is fixed on the test platform through the test tool, and gas is generated during the test. The gas pushes the simulated arrow body along the test tool to achieve height changes; The sensor on the test platform collects the temperature, pressure, heat flow and noise during the test; the k is the ratio of the outer dimension of the simulated arrow body and the test platform to the actual structure size.

Description

technical field [0001] The invention relates to a multi-nozzle rocket dynamic jet test system. Background technique [0002] The thermal environment of the launch force of the launch vehicle determines the safety of the launch vehicle. It is also the basis for the design of the comprehensive protection system of the rocket system and its sub-systems, and it is also the basis for the application of new technologies in the launch engineering of the launch vehicle. [0003] The jet flow test system is a special test system specially used to study the thermal environment of the rocket's take-off force before the launch of the launch vehicle. In order to simplify the operational risk, in most cases, the test is carried out in a static way (simulating the rocket body relative to the launch system to carry out the test in a fixed position). [0004] However, the static jet flow test system also has certain limitations: in order to obtain the gas flow field distribution, noise fiel...

AI Technical Summary

Problems solved by technology

[0004] However, the static jet flow test system also has certain limitations: In order to obtain the gas flow field distribution, noise field distribution, water spray noise reduction effect and take-off force thermal environment at different rocket body heights, it is necessary to process gantry columns of different heights, And prepare a large number of simulated engines

Therefore, in order to find out the actual launch environment, it is necessary to organize and carry out a large number of jet tests, which requires a large cost and is not conducive to the development of research.

Images