|Table of Contents|

Reliability assessment of a certain insensitive igniter based on startup time-sequence of rocket engine(PDF)

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

Issue:
2015年03期
Page:
87-92
Research Field:
测控与试验
Publishing date:

Info

Title:
Reliability assessment of a certain insensitive igniter based on startup time-sequence of rocket engine
Author(s):
YUAN Jie;  PAN Liang
Beijing Aerospace Propulsion Institute, Beijing 100076, China
Keywords:
insensitive igniter;  reliability assessment;  normal distribution
PACS:
V434-34
DOI:
-
Abstract:
To evaluate reliability of the insensitive igniter used in upper stage expander-cycle engine of a new generation launch vehicle, according to high-intensity combustion time data obtained in igniter acceptance test and start-accelerating performance data got during the trial test of expander-cycle engine, the hypothesis testing method was used to prove that pressure-building time S and high-intensity combustion time r are both distributed as normal distribution, and the difference between S and r is also distributed as normal distribution. With stress-strength interference theory, the igniter reliability from calculation based on engine trial test time-sequence is 0.999 970. According to analysis and calculation in this paper, it is considered that the ignition ability of the accepted igniter is reliable, which

References:

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Last Update: 1900-01-01