F216 THE INFLUENCE OF CRACK MODELS ON THE TORSIONAL SHEAR STRESS OF TURBOSET ROTOR(Steam Turbine-5)

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概要

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• Based on the mode III stress intensity factor, three kinds of crack and their influence on rotor's torsional shear stress are studied in this paper. By deducing and calculating the stress intensity factor K_<IIIA> both for the transverse straight crack model and the transverse semi-elliptical crack model, and for the transverse straight crack model and the slant crack model, relationships between K_<IIIA> and a/R for these models are obtained. Then, W_e (the relative difference concerning torsional shear stress of the transverse straight crack model and the transverse semi-elliptical crack model) and W_<sl> (the relative difference concerning torsional shear stress of the transverse straight crack model and the slant crack model) are defined. In addition, the relationship between a/R and (a/c)_<cr> and the relationship between W_<sl cr> and θ_<cr> are obtained. They are very useful for engineering applications when simplicity is needed.

• 一般社団法人日本機械学会の論文
• 2009-11-16

著者

• Fang Hao

  School Of Power And Mechanical Engineering Wuhan University

• XIE Danmei

  School of Power and Mechanical Engineering, Wuhan University

• ZHANG Hengliang

  School of Power and Mechanical Engineering, Wuhan University

• LI Wangfan

  School of Power and Mechanical Engineering, Wuhan University

• CAI Sun

  School of Power and Mechanical Engineering, Wuhan University

• LI Yiliang

  Guangdong Electric Power Design Institute

• Cai Sun

  School Of Power And Mechanical Engineering Wuhan University

• Li Wangfan

  School Of Power And Mechanical Engineering Wuhan University

• Xie Danmei

  School Of Power And Mechanical Engineering Wuhan University

• Zhang Hengliang

  School Of Power And Mechanical Engineering Wuhan University

関連論文

• F216 THE INFLUENCE OF CRACK MODELS ON THE TORSIONAL SHEAR STRESS OF TURBOSET ROTOR(Steam Turbine-5)

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