Citation: | CAI Liang, LIU Yugai. Causes and optimization improvement of a special sealing box end cover fixed parts avulsion[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2024, 60(12): 1-4. DOI: 10.11973/lhjy-wl240256 |
The end cover fixing part of a special sealing box was avulsed at work, which caused the attachment to fall off. By analyzing the tearing mechanism of the fixed part, it was concluded that the reason for the avulsion of the fixed part was the insufficient strength of the fixed part and the unreasonable distribution of the connecting holes. The number of layers of the fixing part material was studied, the compression rate of the glass fiber was improved, the strength of the fixing part material was enhanced, the distribution of the connecting hole of the fixing part was simulated and analyzed, the position of the connecting hole was redistributed, the distribution of the stress between the holes was improved, and the damage degree of the glass fiber caused by the processing connecting hole was reduced. By optimizing the shape of the fixing part, the bonding strength between the fixing part and the end cover was further improved. After experimental verification, the improvement measures of the end cover fixing parts improved the avulsion strength of the fixing parts.
[1] |
王生捷,李建冬,李梅 .发射控制技术[M].北京:北京理工大学出版社,2015.
|
[2] |
张艳,李仙会,庄辛 .导弹贮运发射箱易碎端盖研究进展[J].理化检验(物理分册),2019,55(3):145-150.
|
[3] |
中国玻璃钢工业协会 .玻璃钢简明技术手册[M].北京:化学工业出版社,2004.
|
[4] |
王松超某火箭系统易碎式密封盖研究南京南京理工大学2013王松超 .某火箭系统易碎式密封盖研究[D].南京:南京理工大学,2013.
|