Experimental research of strength check and stage separation for a rocket's stage section based on a blast simulator

ZHU Guangsheng; LIU Ruichao; ZHOU Songbai; LI Lin; WANG Yajun; YANG Xiaolong; LI Sixu; ZHANG Yanrui

doi:10.7527/S1000-6893.2015.0041

ACTA AERONAUTICAET ASTRONAUTICA SINICA >

2015 , Vol. 36 >Issue 7: 2207 - 2213

DOI: https://doi.org/10.7527/S1000-6893.2015.0041

Fluid Mechanics and Flight Mechanics

Experimental research of strength check and stage separation for a rocket's stage section based on a blast simulator

ZHU Guangsheng ,
LIU Ruichao ,
ZHOU Songbai ,
LI Lin ,
WANG Yajun ,
YANG Xiaolong ,
LI Sixu ,
ZHANG Yanrui

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1. China Academy of Launch Vehicle Technology, Beijing 100076, China;
2. The Third Engineer Scientific Research Institute of the Headquarters of the General Staff, Luoyang 471023, China;
3. Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China

Received date: 2014-08-21

Revised date: 2015-02-05

Online published: 2015-03-11

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Abstract

In order to solve the related technical problems of one rocket's stage separation and get the best design scheme of the separation, a new experimental method has been adopted, which is that the experiment of strength check and stage separation for the rocket's stage section is conducted by a blast simulator. The experiment system, experiment specimen, experiment procedures and experiment results are discussed in detail. The unsteady characteristic of the pressure in the stage section is presented and the load-bearing capacity of the stage section is qualified, meanwhile the stage separation pressure and the separation displacement of the section are obtained. Theoretical analyses for the experiment results are carried out and the comparisons with results of traditional rocket engine ground experiment (named as "three-in-one experiment") are made. Studies show that using the blast simulator to carry out the experiments of the strength qualification and stage separation for the rocket's stage section is reasonable in theory, and the experiment results have a good agreement with those of "three-in-one experiment" tally; for the similar experiment, a new, short period, low cost and good repeatability experiment method is presented.

Key words： blast simulator; rocket; stage section; strength check; stage separation

Cite this article

ZHU Guangsheng , LIU Ruichao , ZHOU Songbai , LI Lin , WANG Yajun , YANG Xiaolong , LI Sixu , ZHANG Yanrui . Experimental research of strength check and stage separation for a rocket's stage section based on a blast simulator[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015 , 36(7) : 2207 -2213 . DOI: 10.7527/S1000-6893.2015.0041

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