Essential variations in water flow combined with corrosion affect most small Francis Water Turbines installed by small communities across Papua New Guinea. The authors evaluate the effects of harmonically excited vibrations under variable flow conditions and propose design optimization of shafts. The stiffness depreciation of shafts under erosion is also considered and its effects are evaluated by Finite Element Methods.
Product Design and Development
Failure of Francis Water Turbines due to Flow Variations in Papua New Guinea
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