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Analyses of response characteristics and piston impact deformation in process of pyro-valve start-up(PDF)

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

Issue:
2012年03期
Page:
49-53
Research Field:
研究与设计
Publishing date:

Info

Title:
Analyses of response characteristics and piston impact deformation in process of pyro-valve start-up
Author(s):
YOU Yu-rong;  DU Da-hua;  YUAN Hong-bin;  WANG Chun-min
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
pyro-valveresponse characteristispiston impact deformationsimulation analysis
PACS:
V432-34
DOI:
-
Abstract:
The dynamic response characteristics of high pressure normally-closed pyro-valve on space vehicles were simulated. The results were verified properly by test. Based on simulation results, the piston impact deformation was analyzed. The explicit nonlinear dynamic analysis for the behaviour of piston impacting on the valve body was carried out with Abaqus software. The influence of the initiator, material characteristis and valve outlet pressure conditions on piston impact deformation was investigated. The results indicate that the valve outlet pressure condition is a key factor that inf- luences the valve performance and makes the impact deformation aggravated; and with outlet pressure increasing, the piston impact deformation decreases rapidly and the pyro-valve reliability is degraded.

References:

[1]SHMUEL Ben-Shmuel, GOLDSTEIN Selma, Pyrovalve simulation and evaluation, AIAA97-3103[R]. USA: AIAA, 1997.
[2]吴成, 于国辉. 电爆活门活塞体驱动过程的研究[J]. 弹箭与制导学报, 2005, 25(2): 151－153.
[3]夏晓宇, 黄敏超. 聚能火工装置工作过程数值模拟[J]. 火箭推进, 2010, 36(1): 50－53.
[4]曾攀. 有限元分析及其应用[M]. 北京: 清华大学出版社, 2004.
[5]石亦平, 周玉容. ABAQUS有限元分析实例详解[M]. 北京: 机械工业出版社, 2006.

Memo

Memo:
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Last Update: 1900-01-01