摘要
在某型航空发动机叶片疲劳试验件数量严重不足的情况下,提出一种新的航空发动机叶片疲劳试验方法-逐级载荷加载法。该方法先以一个相对较低的振动水平对叶片进行激励,然后逐级加大叶片的激励水平,直至叶片出现疲劳破坏,最后获取该叶片的疲劳极限。应用该方法对某型发动机第5级轴流压气叶片进行疲劳试验,有效地获取该叶片的疲劳极限。
Due to the serious shortage of specimens for fatigue test of aero-engine blades,a new fatigue test method for aero-engine blades,called step-by-step loading method,is proposed.Firstly,the blade is excited with a relatively low vibration.Then,excitation level on the blade increases step by step until the blade fails.Thereby,the fatigue limit of the blade is obtained.Practical application in the fatigue test of the5th-stage axial compressor’s blades shows that this method is efficient for obtaining the fatigue limit of the blades.
作者
杨伟新
李彦
王平
YANG Wei-xin;LI Yan;WANG Ping(AECC Hunan Aviation Powerplant Research Institute, Key Laboratory of Aero-engine Vibration Technology and Aeronautical Science, Zhuzhou 412002, Hunan China)
出处
《噪声与振动控制》
CSCD
2017年第5期214-218,共5页
Noise and Vibration Control
作者简介
杨伟新(1988-),江西省临川市人,硕士研究生,工程师,研究方向为航空发动机振动、噪声测试。E-mail: ywxdlu@sina.com