This paper describes the analysis of major failure of 28 MW horizontal hydro turbine shaft. The analysis of load carrying capacity of critical radius and fractography analysis are presented. Special emphasize is on metallurgical failure analysis of in-service crack initiation. The analysis of stresses is obtained by the finite element method and the developed model and load conditions are described. Finite element analysis is performed for case of normal service and start-up regime. Based on the failure analysis and numerical calculations, it could be concluded that the seal box design led to constant flow of river water in zone of critical radius which resulted as occurrence of corrosion fatigue cracks and major failure of turbine shaft. Suggestions for problem solution for the turbine shaft are also presented.
TY - JOUR
AU - Momčilović, Dejan
AU - Odanović, Zoran
AU - Mitrović, Radivoje
AU - Atanasovska, Ivana
AU - Vuherer, Tomaž
PY - 2012
UR - http://rims.institutims.rs/handle/123456789/195
AB - This paper describes the analysis of major failure of 28 MW horizontal hydro turbine shaft. The analysis of load carrying capacity of critical radius and fractography analysis are presented. Special emphasize is on metallurgical failure analysis of in-service crack initiation. The analysis of stresses is obtained by the finite element method and the developed model and load conditions are described. Finite element analysis is performed for case of normal service and start-up regime. Based on the failure analysis and numerical calculations, it could be concluded that the seal box design led to constant flow of river water in zone of critical radius which resulted as occurrence of corrosion fatigue cracks and major failure of turbine shaft. Suggestions for problem solution for the turbine shaft are also presented.
PB - Pergamon-Elsevier Science Ltd, Oxford
T2 - Engineering Failure Analysis
T1 - Failure analysis of hydraulic turbine shaft
EP - 66
SP - 54
VL - 20
DO - 10.1016/j.engfailanal.2011.10.006
ER -
@article{
author = "Momčilović, Dejan and Odanović, Zoran and Mitrović, Radivoje and Atanasovska, Ivana and Vuherer, Tomaž",
year = "2012",
abstract = "This paper describes the analysis of major failure of 28 MW horizontal hydro turbine shaft. The analysis of load carrying capacity of critical radius and fractography analysis are presented. Special emphasize is on metallurgical failure analysis of in-service crack initiation. The analysis of stresses is obtained by the finite element method and the developed model and load conditions are described. Finite element analysis is performed for case of normal service and start-up regime. Based on the failure analysis and numerical calculations, it could be concluded that the seal box design led to constant flow of river water in zone of critical radius which resulted as occurrence of corrosion fatigue cracks and major failure of turbine shaft. Suggestions for problem solution for the turbine shaft are also presented.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Failure analysis of hydraulic turbine shaft",
pages = "66-54",
volume = "20",
doi = "10.1016/j.engfailanal.2011.10.006"
}
Momčilović, D., Odanović, Z., Mitrović, R., Atanasovska, I.,& Vuherer, T.. (2012). Failure analysis of hydraulic turbine shaft. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 20, 54-66.
https://doi.org/10.1016/j.engfailanal.2011.10.006
Momčilović D, Odanović Z, Mitrović R, Atanasovska I, Vuherer T. Failure analysis of hydraulic turbine shaft. in Engineering Failure Analysis. 2012;20:54-66.
doi:10.1016/j.engfailanal.2011.10.006 .
