The fatigue of impellers and blades

被引：68
作者：
Zhang, Ming [1 ,2 ,3 ]
Liu, Yan [1 ,3 ]
Wang, Weiqiang [1 ,3 ]
Wang, Pengfei [1 ,3 ]
Li, Jianfeng [1 ,4 ]
机构：
[1] Shandong Univ, Sch Mech Engn, 17923 Jingshi Rd, Jinan 250061, Peoples R China
[2] Qilu Univ Technol, Sch Mech & Automot Engn, 3501 Daxue Rd, Jinan 250353, Peoples R China
[3] Engn & Technol Res Ctr Special Equipment Safety S, 17923 Jingshi Rd, Jinan 250061, Peoples R China
[4] Minist Educ, Key Lab High Efficiency & Clean Mech Manufacture, 17923 Jingshi Rd, Jinan 250061, Peoples R China
来源：
ENGINEERING FAILURE ANALYSIS | 2016年 / 62卷
关键词：
Impellers and blades; Fatigue failure; Fatigue load; Crack growth simulation; Fatigue test; CRACK GROWTH SIMULATION; LAST STAGE BLADE; FAILURE ANALYSIS; TURBINE BLADE; FRETTING FATIGUE; 1ST STAGE; VIBRATION LOCALIZATION; MISTUNED ASSEMBLIES; COMPRESSOR BLADES; CYCLIC SYMMETRY;
D O I：
10.1016/j.engfailanal.2016.02.001
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Impellers and blades are the key components of turbomachines, and fatigue is the main failure mode of impellers and blades. The status and progress of fatigue research on impellers and blades were systematically introduced through reviewing fatigue failures, numerical simulations of fatigue, and fatigue tests of impellers and blades in several typical turbomachines. High cycle fatigue caused by vibration was the main failure mechanism, and fatigue cracks usually initiated from the location of stress concentration. The resonance caused by the aerodynamic load was the main cause of fatigue failure of impellers and blades in a steady operating condition. The coupling of the meshless method and the finite element method and the combined fatigue test of actual impellers and blades are the developmental direction and research focus of the future. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：208 / 231
页数：24
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