FE-analysis Of Stresses In A Francis Turbine
Runner At Derbendikhan Power Station
Author(s)
R. A. Saeed, A. N. Galybin, & V. Popov
Abstract
This paper investigates the hydraulic induced stresses in a complete Francis
runner at Derbendikhan power station by using Finite Element Analysis (FEA).
Computations of water pressure were carried out with appropriate boundary and
specific turbine loadings conditions obtained from CFD analysis. FE-analysis
was carried out to compute stress distribution in the runner blades. This paper
discusses combination of fluid and structure model, furthermore, this paper
also discusses the maximum stress location on the blade of the runner. The
results show that the maximum stresses caused by the hydraulic forces are
situated at the transition between the blades and the crown/band on the trailing
edge. This explains why this region has been identified as a critical area for
fatigue crack initiation in the Francis turbine runner.
Keywords: Francis turbine runner, fatigue cracks, FEM stress analysis.
Keywords
Francis turbine runner, fatigue cracks, FEM stress analysis.
Related Book
Other papers in this volume
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