scholarly journals Numerical Simulations of Fatigue Crack Growth in a Steam Turbine Rotor Blade Groove

2019 ◽  
Vol 17 ◽  
pp. 780-787
Author(s):  
Jiří Kuželka ◽  
Martin Nesládek ◽  
Maxim Lutovinov ◽  
Josef Jurenka ◽  
Milan Růžička ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Numerical Simulations ◽  
Steam Turbine ◽  
Crack Growth ◽  
Rotor Blade ◽  
Turbine Rotor ◽  
Turbine Rotor Blade ◽  
Steam Turbine Rotor

Tip-Timing Steam Turbine Rotor Blade Simulator

2018 ◽  
Vol 6 (4) ◽  
pp. 317-323 ◽  
Author(s):  
L. Piechowski ◽  
R. Rzadkowsk ◽  
P. Troka ◽  
P. Piechowski ◽  
L. Kubitz ◽  
...  
Keyword(s):  
Steam Turbine ◽  
Rotor Blade ◽  
Turbine Rotor ◽  
Turbine Rotor Blade ◽  
Steam Turbine Rotor

Optimization of Root Section for Ultra-long Steam Turbine Rotor Blade

2018 ◽  
Vol 27 (2) ◽  
pp. 95-102 ◽  
Author(s):  
Jindřich Hála ◽  
Martin Luxa ◽  
David Šimurda ◽  
Marek Bobčík ◽  
Ondřej Novák ◽  
...  
Keyword(s):  
Steam Turbine ◽  
Rotor Blade ◽  
Turbine Rotor ◽  
Root Section ◽  
Turbine Rotor Blade ◽  
Steam Turbine Rotor

The Fatigue and Fracture Analysis of Steam Turbine Rotor Shafts Containing Defects

2019 ◽  
Vol 795 ◽  
pp. 254-261
Author(s):  
Shang Wang ◽  
Wei Qiang Wang ◽  
Ming Da Song ◽  
Hao Zhang
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Steam Turbine ◽  
Fatigue Crack Propagation ◽  
Low Cycle Fatigue ◽  
Turbine Rotor ◽  
Initial Surface ◽  
Cycle Fatigue ◽  
Steam Turbine Rotor ◽  
Fatigue Crack Propagation Life

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.

Sign in / Sign up

Export Citation Format

Share Document