高晶晶,陆楠,夏小春,刘克刚,梅宇飞,张新健,张艳,杜翠玲.某型航空钮子开关铆钉断裂失效分析及环境适应性提升[J].装备环境工程,2021,18(11):91-96. GAO Jing-jing,LU Nan,XIA Xiao-chun,LIU Ke-gang,MEI Yu-fei,ZHANG Xin-jian,ZHANG Yan,DU Cui-ling.Fracture Failure Analysis and Environmental Adaptability Improvement of Rivet for a Certain Type of Aeronautical Toggle Switch[J].Equipment Environmental Engineering,2021,18(11):91-96.
某型航空钮子开关铆钉断裂失效分析及环境适应性提升
Fracture Failure Analysis and Environmental Adaptability Improvement of Rivet for a Certain Type of Aeronautical Toggle Switch
投稿时间:2021-03-11  修订日期:2021-05-10
DOI:10.7643/issn.1672-9242.2021.11.013
中文关键词:  铆钉  湿热试验    应力腐蚀断裂  环境适应性中图分类号:V229+.1  TJ04 文献标识码:A 文章编号:1672-9242(2021)11-0091-06
英文关键词:rivet  humidity-heat test  ammonia  stress corrosion fracture  environmental adaptability
基金项目:
作者单位
高晶晶 上海航空电器有限公司,上海 201101 
陆楠 空装驻上海地区第三军事代表室,上海 201101 
夏小春 空装驻上海地区第三军事代表室,上海 201101 
刘克刚 上海航空电器有限公司,上海 201101 
梅宇飞 上海航空电器有限公司,上海 201101 
张新健 上海航空电器有限公司,上海 201101 
张艳 上海航空电器有限公司,上海 201101 
杜翠玲 上海航空电器有限公司,上海 201101 
AuthorInstitution
GAO Jing-jing Avic Shanghai Aviation Electric Co., Ltd., Shanghai 201101, China 
LU Nan Air Force Equipment’s NO.3 Military Representative Office in Shanghai, Shanghai 201101, China 
XIA Xiao-chun Air Force Equipment’s NO.3 Military Representative Office in Shanghai, Shanghai 201101, China 
LIU Ke-gang Avic Shanghai Aviation Electric Co., Ltd., Shanghai 201101, China 
MEI Yu-fei Avic Shanghai Aviation Electric Co., Ltd., Shanghai 201101, China 
ZHANG Xin-jian Avic Shanghai Aviation Electric Co., Ltd., Shanghai 201101, China 
ZHANG Yan Avic Shanghai Aviation Electric Co., Ltd., Shanghai 201101, China 
DU Cui-ling Avic Shanghai Aviation Electric Co., Ltd., Shanghai 201101, China 
摘要点击次数:
全文下载次数:
中文摘要:
      目的 解决某型航空钮子开关中H62黄铜铆钉在湿热试验后出现的断裂问题,保证钮子开关适应自然和诱导环境的能力,从而提高整机的环境适应性及可靠性。方法 采用ANSYS有限元仿真分析、扫描电子显微分析及光谱分析等方法,从整个开关系统入手,对断裂铆钉的受力状态、材质、显微组织及壳体的析出离子进行了深入分析,探明了铆钉的失效原因及机理,并提出了从零部件到产品级的对策。结果 铆钉的断裂为典型的解理断裂,断口覆盖了大量的腐蚀产物,开关壳体释放的NH4+导致铆钉产生了应力腐蚀断裂。结论 黄铜铆钉的断裂失效是由于开关下壳体在湿热环境的诱导下释放出氨气,氨气浸入到长时间受拉应力的铆钉中产生了应力腐蚀。因此,在铆钉科研试制时即需评估其在钮子开关系统中的环境适应性。
英文摘要:
      This paper aims to solve the fracture failure problem of H62 brass rivet for a certain type of aeronautical toggle switch in humidity-heat test, guarantee the toggle switch’s ability to adapt to natural and induced environment, so as to improve the environmental adaptability and reliability of the whole machine. During the research, we adopt ANSYS Finite Element Analysis,Scanning Electron Microscope Analysis, Spectral Analysis and other methods. Starting from the whole switch system, we perform in-depth analysis of the forced state, material, microstructure and ions precipitated from the housing of the fractured rivet, ascertain the failure reason and mechanism of the rivet, and propose countermeasures from parts to product level. The fracture of rivet is a typical cleavage fracture, and the fracture is covered with a great amount of corrosion product, and the release of NH4+ from the switch housing leads to stress corrosion fracture of rivet. Conclusion could be drawn that the fracture failure of brass rivet is due to the release of ammonia gas from lower switch housing induced by the damp and hot environment, and the ammonia gas immerses into the rivet subjected to tensile stress for a long time, resulting in stress corrosion. Therefore the environmental adaptability of rivet in toggle switch system is supposed to be preferentially evaluated during scientific research and trial production.
查看全文  查看/发表评论  下载PDF阅读器
关闭

关于我们 | 联系我们 | 投诉建议 | 隐私保护 | 用户协议

您是第11513573位访问者    渝ICP备15012534号-5

版权所有:《装备环境工程》编辑部 2014 All Rights Reserved

邮编:400039     电话:023-68792835    Email: zbhjgc@163.com

视频号 公众号