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Stimulation research on performance of pressure regulating module in ultrahigh pressure cold gas propulsion system(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2015年02期
Page:
50-55
Research Field:
研究与设计
Publishing date:

Info

Title:
Stimulation research on performance of pressure regulating module in ultrahigh pressure cold gas propulsion system
Author(s):
ZHANG Tao1;  LI Guo-xiu1;  WANG Xu-dong1;  2;  WANG Lu1;  YU Yu-song1;  LIU Xing1
1. School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China；2. Beijing Institute of Control Engineering, Beijing 100190, China
Keywords:
ultrahigh pressurepressure regulating modulesimulation calculationfilling processstart-up processshutdown process
PACS:
V432-34
DOI:
-
Abstract:
By taking ultrahigh pressure cold gas propulsion system as the research background, numerical stimulation research of the pressure regulating module is carried out in this paper. The properties of pressure regulating, and the influence law of throttle hole diameter and inlet pressure on the pressure regulating module in different stages were achieved by establishing the fluid-solid coupling dynamic mathematical model in pressure regulating module, and defining its working process as three stages (filling, start-up and shutdown). The simulation results show that the increase of throttle hole diameter and inlet pressure can boost the pressure in the pressure stabilizing cavity in different stages, but only the time to reach stable state is different, and the change of valve element displacement also shows certain

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