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[1]蒲光荣,单 磊,赵晓慧,等.泵压式多次起动发动机起动过程仿真研究[J].火箭推进,2019,45(05):17-24.
　PU Guangrong,SHAN Lei,ZHAO Xiaohui,et al.Simulation study on start-up processes of a multi-startup turbopump-fed rocket engine[J].Journal of Rocket Propulsion,2019,45(05):17-24.
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泵压式多次起动发动机起动过程仿真研究

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 45 期数: 2019年05期 页码: 17-24 栏目: 研究与设计 出版日期: 2019-10-30
Title:
Simulation study on start-up processes of a multi-startup turbopump-fed rocket engine
文章编号:
1672-9374(2019)05-0017-08
作者:
蒲光荣; 单 磊; 赵晓慧; 陈宏玉
(西安航天动力研究所,陕西 西安 710100)
Author(s):
PU Guangrong;  SHAN Lei;  ZHAO Xiaohui;  CHEN Hongyu
(Xi’an Aerospace Propulsion Institute, Xi’an 710100, China)
关键词:
泵压式;  液体火箭发动机;  多次起动;  起动特性;  仿真分析
Keywords:
turbopump-fed;  liquid rocket engine;  multi-startup;  start-up characteristics;  simulation analysis
分类号:
V430
文献标志码:
A
摘要:
某型上面级液体火箭发动机采用可反复充填的起动箱作为起动系统,实现了泵压式发动机的多次起动,但相比火药起动器炮式起动方式,发动机起动过程更为复杂。为研究发动机起动过程工作特性,应用Modelica语言,基于MWorks平台建立了起动箱多次起动泵压式发动机动态特性仿真模型,对发动机起动过程进行了仿真研究,分析了起动箱压力、起动箱内推进剂消耗量、起动参数设置对起动过程的影响。结果表明:发动机每次起动推进剂消耗量远小于起动箱设计容积; 起动过程参数变化呈现“挤压起动-再充填-稳态工作”三个平台变化的显著特征; 发动机在较大起动箱压力范围内均能够保证正常起动。发动机热试车结果验证了发动机起动时序设置的合理性和起动箱参数设置对起动过程的影响。
Abstract:
By adopting a refillable start-tank as the starting system in a upper stage liquid rocket engine, the multi-startup of the turbopump-fed engine has been realized, but the engine start-up process is more complicated than the gun-type startup mode with powder starter.In order to understand the working characteristics of the multi-startup process, a dynamic simulation model was established to achieve the performance parameters of the multi-startup process, which was based on the MWorks platform using Modelica language.The simulation results include the effect of startup box pressure, propellant consumption of startup box and main starting parameters on the startup process.The propellant consumption of startup box is much less than the design volume of startup box during every startup.During the startup process, the parameter variation shows the remarkable characteristics with three platforms and is “extrusion start-refill-steady state work”.In addition, the engine can start up normally within a wide range of startup box pressure.The results of engine hot firing test verify the rationality of the engine startup sequence setting and the effect of parameter settings on startup process.

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备注/Memo

收稿日期:2018-02-03; 修回日期:2019-01-02基金项目:装备预先研究项目(51320130212)作者简介:蒲光荣(1977—),男,博士,高级工程师,研究领域为液体火箭发动机总体设计

更新日期/Last Update: 2019-10-25