喷射成形7055铝合金耳片接头的应用验证研究  

Study on Application of Spray Formed 7055 Aluminum Alloy in the Lug Joint

作　　者：徐茂[1] 彭海锋 唐义号[1] 项文科 XU Mao;PENG Haifeng;TANG Yihao;XIANG Wenke(China Helicopter Research and Development Institute,Jingdezhen 333001,China)

机构地区：[1]中国直升机设计研究所

出　　处：《直升机技术》2019年第2期42-46,共5页Helicopter Technique

摘　　要：选取了某型机典型主承力构件耳片接头,使用喷射成形7055-T7352铝合金锻件的力学性能,采用Patran/Nastran软件进行有限元分析,分别计算了耳片接头在12种常用工况下的应力,并与当前构件使用的高强铝合金7050-T7451预拉伸板的疲劳寿命进行对比与讨论。结果表明:在这12种工况下的耳片接头,喷射成形7055-T7352铝合金锻件的应用效果比高强铝合金7050-T7451预拉伸板的更好。In this paper, one typical helicopter components-- lug joint has been studied, with the mechanical properties of spray formed 7055 - T7352 aluminum alloy forging, by the Patran/Nastran software, under twelve load cases, the misesstress have been analyzed, and the difference between the forging of 7055 - T7352 and the plate of 7050 - T7451, which was widely used in the helicopter structure, has also been discussed. The results suggested that: under this twelve load cases, the application of the lug joint with spray formed 7055 - T7352 aluminum alloy forging was great better than the plate of 7050-T7451.

关 键 词：喷射成形 7055铝合金 耳片接头 疲劳寿命 

分 类 号：V252[一般工业技术—材料科学与工程]