航空学报 > 2015, Vol. 36 Issue (7): 2207-2213   doi: 10.7527/S1000-6893.2015.0041

基于爆炸激波管的火箭级间段强度考核和分离试验研究

朱广生1, 刘瑞朝2, 周松柏2, 李林2, 王亚军3, 杨小龙3, 李斯戌3, 张延瑞3   

  1. 1. 中国运载火箭技术研究院, 北京 100076;
    2. 总参工程兵科研三所, 洛阳 471023;
    3. 北京宇航系统工程研究所, 北京 100076
  • 收稿日期:2014-08-21 修回日期:2015-02-05 出版日期:2015-07-15 发布日期:2015-03-11
  • 通讯作者: Tel.: 0379-81876753 E-mail: lynn89002@sina.com E-mail:lynn89002@sina.com
  • 作者简介:朱广生 男, 博士, 研究员。主要研究方向: 飞行器设计。 Tel: 010-88531498 E-mail: ZGS_0128@163.com李林 男, 硕士, 副研究员。主要研究方向: 爆炸力学与试验技术。 Tel.: 0379-81876753 E-mail: lynn89002@sina.com

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

ZHU Guangsheng1, LIU Ruichao2, ZHOU Songbai2, LI Lin2, WANG Yajun3, YANG Xiaolong3, LI Sixu3, ZHANG Yanrui3   

  1. 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:2014-08-21 Revised:2015-02-05 Online:2015-07-15 Published:2015-03-11

摘要:

为解决某型号火箭级间分离的相关技术难题、获得最佳的级间分离设计方案,采用了一种新型的试验方法:利用爆炸激波管进行火箭级间段的强度考核和级间分离试验。对试验系统、试验件、试验过程和试验结果等进行了详细论述。试验揭示了级间段内腔非定常压力的变化规律,考核了正式级间段壳体的承压能力,获得了级间分离压力和分离行程曲线等。对试验结果进行了理论分析,并与传统的地面火箭发动机"三合一"试验结果进行了对比。研究表明:利用爆炸激波管进行火箭级间段的强度考核和级间分离试验在理论上是合理的,试验结果与 "三合一"试验吻合较好,为类似试验提供了一种周期短、成本低、可重复性好的新试验手段。

关键词: 爆炸激波管, 火箭, 级间段, 强度考核, 级间分离

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

中图分类号: