理化检验：物理分册2012，Vol.48Issue(12)：841-844,4.
滑油散热器进油管嘴裂纹分析
Analysis on Cracking of Oil-in Mouthpiece of Oil Radiator
郑安阳 1李雪 2张兵 3赵立华1
作者信息
- 1. 北京科技大学冶金与生态工程学院,北京100083
- 2. 豫新航空环控设备有限公司,新乡453049
- 3. 北京航空材料研究院,北京100095
- 折叠
摘要
Abstract
An oil radiator in the main retarder of a helicopter cracked at the welded joint between the oil-in mouthpiece and the cover of the radiator during service. In order to find out the failure mode and failure cause, micro and macro observation as well as metallographic examination were carried out. The results show that crack of the oil-in mouthpiece of the oil radiator is high cycle fatigue crack, and the cracking of the oil-in mouthpiece is mainly due to the improper design of the structure. The cracking of the oil-in mouthpiece could be avoided by reducing the length of the oil in mouthpiece and increasing the thickness of the radiator cover.关键词
滑油散热器/进油管嘴/高周疲劳裂纹/结构设计Key words
oil radiator/oil-in mouthpiece/high cycle fatigue crack/structure design分类
航空航天引用本文复制引用
郑安阳,李雪,张兵,赵立华..滑油散热器进油管嘴裂纹分析[J].理化检验：物理分册,2012,48(12):841-844,4.
