Study on Natural Vibration Characteristic of Spiral Casing Structure in Hydraulic Turbine Based on Acoustic-Structural Coupled Theory

Ze Li; Zhi Lin Liang; Li Xiang Zhang

doi:10.4028/www.scientific.net/AMM.256-259.2533

Paper Titles

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Experimental and Numerical Study of Hydrodynamic Cavitation of Orifice Plates with Multiple Triangular Holes
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Study on Three-Dimensional Visual Simulation for Inter-Basin Water Transfer Project
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Calculation and Analysis of Water Quality Improvement Caused by Water Diversion in Nanjing Qinhuai River
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Study on Natural Vibration Characteristic of Spiral Casing Structure in Hydraulic Turbine Based on Acoustic-Structural Coupled Theory
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Experiment of Settling Effect of Ecuador's Coca Codo Sinclair Hydropower Station Settling Basin
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Numerical Simulation of Flow over Aerators on the Chute with an Anti-Arc Section by Turbulence Flow Model
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Numerical Simulation of Maximum Scour Depth of the Riverbed above a Subway Tunnel Crossing the Tidal River
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Visual Simulation of Flood Discharge for Reservoir Spillway
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 256-259Study on Natural Vibration Characteristic of...

Study on Natural Vibration Characteristic of Spiral Casing Structure in Hydraulic Turbine Based on Acoustic-Structural Coupled Theory

Abstract:

Based on the strong interaction method that combines FEM with acoustic theory, the finite element dynamic equations of spiral casing structure are built, which provides the basis for analyzing self-olsillatin characteristics of spiral casing structure. The self-olsillatin characteristics of structure are calculated with the method. The natural vibration frequencies, and mode shapes are obtained.