The fatigue and fracture analysis of steam turbine rotor shafts containing defects

被引：1
|
作者：
Wang S. [1 ,2 ,3 ]
Wang W.Q. [1 ,2 ,3 ]
Song M.D. [2 ,4 ]
Zhang H. [2 ,4 ]
机构：
[1] School of Mechanical Engineering, Shandong University, Jinan
[2] Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Jinan
[3] Research Center of Safety Guarantee and Assessment to Special Equipment, Shandong University, Jinan
[4] Shandong Special Equipment Inspection and Research Academy Corporation, Jinan
来源：
Key Engineering Materials | 2019年 / 795卷
关键词：
Defect; Steam turbine rotor shafts; Stress analysis; The fatigue crack propagation life;
D O I：
10.4028/www.scientific.net/KEM.795.254
中图分类号：
学科分类号：
摘要：
In this study, the assessment and calculation methods for the crack propagation life of steam turbine rotor shafts containing defects are presented. The analytic methods for estimating the average stress and the alternating stress amplitude of the steam turbine rotor shafts are introduced. The defects on/in the rotor shafts were regularized by the method of fracture mechanics, and the high cycle fatigue crack propagation life and low cycle fatigue crack propagation life of the rotor shafts are estimated from Paris formula. Taking the 60MW turbine rotor shafts containing an initial surface defect and an initial internal defect as the examples respectively, the crack propagation life of them were calculated. The results indicated that the assessment method for the crack propagation life can preliminarily be both used to estimate the safety-operating life and to analyze the fracture reason of a steam turbine rotor shaft containing defects. This paper can provide reference for periodic maintenance and safety evaluation of turbine rotor shafts. © 2019 Trans Tech Publications Ltd, Switzerland.
引用
收藏
页码：254 / 261
页数：7
相关论文
共 50 条
  • [41] Numerical analysis of tip leakage flow in steam turbine rotor cascades
    Cao, Lihua
    Zhang, Dongxue
    Hu, Pengfei
    Li, Yong
    Cao, L. (clh320@163.com), 1600, Chinese Mechanical Engineering Society (50): : 172 - 177
  • [42] Calculation and analysis of thermal stress for high pressure rotor of steam turbine
    Jin, Jun
    Zhou, Qin
    Xie, Yonghui
    PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE ON INFORMATION SCIENCES, MACHINERY, MATERIALS AND ENERGY (ICISMME 2015), 2015, 126 : 277 - 280
  • [43] Analysis of Flow Pattern in Rotor Tip Seal Clearance of Steam Turbine
    Cao, Li-Hua
    Li, Pan
    Si, He-Yong
    Hu, Peng-Fei
    Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics, 2020, 41 (02): : 299 - 306
  • [44] TURBINE ROTOR VIBRATIONS EXCITED BY STEAM FORCES (STEAM WHIRL)
    POLLMANN, E
    TERMUEHLEN, H
    MECHANICAL ENGINEERING, 1976, 98 (02) : 85 - 86
  • [45] Low-cycle fatigue life estimation of steam turbine rotor steels at high temperature
    Lv, Fangming
    Wang, Kun
    Huang, Shuhong
    JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN, 2014, 49 (01): : 19 - 26
  • [46] Study on material structure evolution of steam turbine rotor under thermal cycling fatigue load
    Su, Jun
    Wang, Xuan
    Liu, Lixin
    INTERNATIONAL JOURNAL OF ENGINEERING SYSTEMS MODELLING AND SIMULATION, 2021, 12 (01) : 54 - 60
  • [47] Evaluation of corrosion fatigue crack propagation behavior at low pressure steam turbine rotor grooves
    Morita, Akira
    Kagawa, Hiroyuki
    Kubo, Shiro
    Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, 2003, 69 (02): : 427 - 433
  • [48] Fatigue Crack Growth Threshold Determination for Welded Joint Constituents of a Steam Turbine LP Rotor
    M-H. H. Shen
    S. R. Akanda
    X. Liu
    P. Wang
    Experimental Techniques, 2016, 40 : 1215 - 1220
  • [49] High Temperature Low Cycle Fatigue Characteristics of Steam Turbine Rotor Steel 10%Cr
    Cui L.
    Kangwenquan
    Zou F.
    Weiwenlan
    Li Z.
    Wang P.
    Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research, 2021, 35 (05): : 371 - 380
  • [50] Low Cycle Fatigue Life Prediction of Steam Turbine Rotor based on a New CDM Model
    Sun, Yongjian
    Hu, Lisheng
    2014 33RD CHINESE CONTROL CONFERENCE (CCC), 2014, : 6814 - 6819
12345