模拟扭矩载荷作用的涡轮盘低循环疲劳寿命试验  

Experiment of turbine disc low cycle fatigue life with additional torque

作　　者：李伟[1,2] 董立伟[2] 耿中行[2] 赵福星[2] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191 [2]北京航空工程技术研究中心,北京100076

出　　处：《航空动力学报》2010年第6期1346-1351,共6页Journal of Aerospace Power

摘　　要：提出了在传统涡轮盘低循环疲劳试验件上施加扭矩的试验方案,以某型发动机涡轮盘为对象,组装和调试了某型全尺寸涡轮盘预扭试验件,完成了低循环疲劳试验.加扭涡轮盘低循环疲劳试验结果与涡轮盘在传统不加扭矩方法下的低循环疲劳试验表现出明显差异.试验结果表明,涡轮扭矩对涡轮盘-轴连接销钉孔区域疲劳寿命有重要影响.An experiment technology of turbine disc low cycle fatigue life（LCF） with additional torque was presented.A full-scale turbine disc test model with additional torque for an aero-engine turbine disc was fabricated and debugged,and then was tested for LCF.The test result was different remarkably from the former results on traditional method without torque,and directly validated the conclusion that torque affected LCF of dowel hole connecting disc and shaft.

关 键 词：涡轮盘 低循环疲劳寿命 试验技术 销钉孔 扭矩 

分 类 号：V231.95[航空宇航科学与技术—航空宇航推进理论与工程]