Research on Dynamic Characteristics of Penstock and Expansion Joint Structure in Hydropower Station

Hua Gu; Gen Hua Yan

doi:10.4028/www.scientific.net/AMR.250-253.2881

Paper Titles

Test Study on Water Problems after Barrier Construction in the Jinjiang Estuary
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Experimental Study on Blast Resistant Structure with Composite Protection Layer
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Periodical Urban Morphology Evolution Research of Representative City in Songhua River Basin
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Analysis and Design Recommendations for the Collapse of a Concrete Silo
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Research on Dynamic Characteristics of Penstock and Expansion Joint Structure in Hydropower Station
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Research on Time Series Analysis Based Deformation Prediction Model
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Analysis on Dynamic Response and its Optimized Design of Penstock and Expansion Joint Structure in Hydropower Station
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Study of a New Type SMA Damper
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A New Algorithm for Normal Water Depth of the Ordinary Arched Tunnel
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 250-253Research on Dynamic Characteristics of Penstock...

Research on Dynamic Characteristics of Penstock and Expansion Joint Structure in Hydropower Station

Abstract:

During electricity generation in Hydropower Station, there’s pulsating pressure load on discharge flow, which induces vibration and fatigue damage on expansion joint structure. In this essay, through 3D Finite Element Method we conduct research about natural vibration characteristics of honeycomb duct of steel waterline pipe expansion joint under the condition of fluid-structure interaction, analyzing and researching the characteristics of vibratory modes with fluid-structure interaction on penstock between adjacent domains. By the above effort, we acquire the parameters of vibratory modes on structure, including those like natural frequency and corresponding vibratory modes of structural low level, which provides basis for structural vibration analysis.

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Periodical:

Advanced Materials Research (Volumes 250-253)

Pages:

2881-2887

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.250-253.2881

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Online since:

May 2011

Authors:

Hua Gu, Gen Hua Yan

Keywords:

Expansion Joint, Fluid Structure Interaction (FSI), Guide Cylinder, Natural Frequency, Penstock, Vibratory Modes

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References

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