主减速器后撑杆失效分析 |
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引用本文: | 王胜霞,陈学军.主减速器后撑杆失效分析[J].直升机技术,2006(3). |
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作者姓名: | 王胜霞 陈学军 |
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作者单位: | 中国直升机设计研究所,中国直升机设计研究所 景德镇,333001,景德镇,333001 |
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摘 要: | 本文采用化学成分分析、力学性能、金相检验、断口分析和能谱分析等方法,对失效的后撑杆进行分析,结果表明,在三件失效件中,1号为正常的疲劳断裂,2号、3号件属于微动磨损引起的疲劳断裂。
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关 键 词: | 后撑杆 微动磨损 疲劳断裂 |
The Failure Analysis of Mgb Rear Rod |
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Authors: | WANG Sheng-xia CHEN Xue-jun |
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Abstract: | In this paper,rear rod bar was analysised by means of chemical composition,mechanical character test,microstructrue examination,fracture microscopic analysis and energy dispersive X-ray spectrum analysis.The result showed that in three failure samples,one belonged to normal fatigue fracture,for the two others,jiggle abrasion was the main reason of the fatigue fracture. |
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Keywords: | rear rod jiggle abrasion fatigue fracture |
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