摘要
由我国自行设计、制造的直8桨叶部件经过几年不懈努力,已研制生产成功。它采用LD2高强度铝合金材料挤压成型,为空心薄壁管梁结构。为确定国产桨叶性能和疲劳特性,为国产桨叶疲劳寿命提供依据,保障部队正常使用,我们在相同条件下进行了进口大梁与国产大梁样件的疲劳对比试验,最后与法国宇航提供的原准机数据进行对比分析。本文着重阐述了其疲劳试验方法的研究。该试验采用了共振复合加载技术,采用了调频调幅技术,采用了计算机跟踪采集和数据分析软件技术,取得了较好效果。
The Z8 blade designed by us has been successfully developed and processed through continuously made efforts for several years.The blade beam made of high strenghth LD2 aluminum alloy is a hollow tube with thin shell shaped by extrusion.In order to determine the performance and fatigue characteristics,Provide basis for fatigue life of domestic blade and ensure army using safely,weperform fatigue comparison test for sampolesof import and domestic blades,and comparison analysis with the data of prototype from EC finally.This paper mainly presents the research of fatigue test method.The test employs the technologies of compositley loading,AM&FM and computer tracing sampling and analyzing,and better results have been made.
出处
《直升机技术》
1999年第1期38-42,共5页
Helicopter Technique
关键词
直升机
旋翼
疲劳试验
Helicopter rotor fatique test
