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[1]徐登伟,张萍,沙超,等.电磁阀阀体断裂故障分析及结构改进[J].火箭推进,2023,49(03):90-95.
　XU Dengwei,ZHANG Ping,SHA Chao,et al.Failure analysis and structure improvement of valve body fracture for solenoid valve[J].Journal of Rocket Propulsion,2023,49(03):90-95.
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电磁阀阀体断裂故障分析及结构改进

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 49 期数: 2023年03期 页码: 90-95 栏目: 目次 出版日期: 2023-06-25
Title:
Failure analysis and structure improvement of valve body fracture for solenoid valve
文章编号:
1672-9374(2023)03-0090-06
作者:
徐登伟; 张萍; 沙超; 朱建国
(西安航天动力研究所,陕西 西安 710100)
Author(s):
XU Dengwei;  ZHANG Ping;  SHA Chao;  ZHU Jianguo
(Xi'an Aerospace Propulsion Institute, Xi'an 710100, China)
关键词:
电磁阀; 软磁合金; 阀体断裂; 故障; 机理分析
Keywords:
solenoid valve;  soft magnetic alloy;  valve body fracture;  failure;  mechanism analysis
分类号:
V434
文献标志码:
A
摘要:
针对某型电磁阀力学冲击后阀体断裂的问题,计算了阀体的结构强度,分析了故障原因和断裂机理。在不改变电磁阀外形尺寸和性能的前提下,提出了增加结构强度的改进措施,仿真计算结果表明改进后阀体断裂部位应力降低至原来的42%,电磁阀经过力学环境试验、整机试车及飞行试验考核,阀体断裂问题得到彻底解决。研究结果表明,当阀体结构存在应力集中时,在高量级冲击条件下极易出现开裂、断裂等问题,同时外壳与阀体的连接可靠性对阀体结构强度影响较大,电磁阀设计时应重点考虑。
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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备注/Memo

收稿日期:2022-08-12; 修回日期:2022-09-16
基金项目:国家自然科学基金项目(u1737205)
作者简介:徐登伟(1985—),男,硕士,高级工程师,研究领域为液体火箭发动机阀门设计。

更新日期/Last Update: 1900-01-01