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Failure investigation of a Kaplan turbine blade

Author
Zhang, M.; Valentin, D.; Valero, M.; Egusquiza, M.; Egusquiza, E.
Type of activity
Journal article
Journal
Engineering failure analysis
Date of publication
2019-03-01
Volume
97
First page
690
Last page
700
DOI
10.1016/j.engfailanal.2019.01.056
Repository
http://hdl.handle.net/2117/133632 Open in new window
URL
https://www.sciencedirect.com/science/article/abs/pii/S1350630718309191 Open in new window
Abstract
In this paper, an uncommon failure of a Kaplan turbine blade has been analyzed. After the monitoring system detected a sudden increase in vibration levels, the turbine was inspected. The inspection showed that a large crack occurred on one blade starting from the leading-edge side root hole. Moreover, the tip of the blade was also found broken. A comprehensive analysis of the crack surfaces, broken parts and the vibration data revealed a fatigue problem probably caused by rubbing between the bla...
Citation
Zhang, M. [et al.]. Failure investigation of a Kaplan turbine blade. "Engineering failure analysis", 1 Març 2019, vol. 97, p. 690-700.
Keywords
Failure of a Kaplan turbine blade, Turbine Kaplan
Group of research
CDIF - Center for Industrial Diagnostics
FLUIDS - Fluids Engineering

Participants