Design of Powerhouse Spiral Case Considering Three-Dimensional Action

by L. Del Rio, EDELCA, Caracas, Venezuela,
R. E. Barrie, EDELCA, Caracas, Venezuela,
C. H. Yeh, EDELCA, Caracas, Venezuela,
V. Vig, EDELCA, Caracas, Venezuela,

Document Type: Proceeding Paper

Part of: Waterpower '91: A New View of Hydro Resources


A commonly used approach of designing semi-spiral cases for Kaplan turbine installation using two-dimensional frames becomes unsuitable for large diameter turbines and/or high heads. The finite element method is applied to analyze the three-dimensional action of the structure. Structural deflections and corresponding moments and forces from all analyses are presented.

Subject Headings: Power plants | Finite element method | Turbines | Stress analysis | Frames | Three-dimensional analysis | Structural deflection | Moment (mechanics)

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