|Table of Contents|

Failure analysis and structure improvement of valve body fracture for solenoid valve (PDF)

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

Issue:
2023年03期
Page:
90-95
Research Field:
目次
Publishing date:

Info

Title:
Failure analysis and structure improvement of valve body fracture for solenoid valve
Author(s):
XU Dengwei;  ZHANG Ping;  SHA Chao;  ZHU Jianguo
(Xi'an Aerospace Propulsion Institute, Xi'an 710100, China)
Keywords:
solenoid valve;  soft magnetic alloy;  valve body fracture;  failure;  mechanism analysis
PACS:
V434
DOI:
-
Abstract:
Aiming at the problem of the valve body fracture for solenoid valve under impact loading condition, the stress of solenoid valve body was calculated, and the failure mechanism of the valve body fracture was analyzed. Without changing the size and performance of the solenoid valve, the improvement measures are put forward to increase the structural strength. The simulation results show that the stress of the improved solenoid valve is reduced to 42%. After the improved solenoid valve was tested by the mechanical environment, the whole system test and the flight test, the fracture problems of the valve body were solved thoroughly. When the stress concentration exists in the structure, cracking and fracture are easy to occur in the impact mechanical environment. At the same time, the joint reliability of shell and body has great influence on the structural strength, and the design of solenoid valve should be emphatically considered.

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