Details
| Originalsprache | Deutsch |
|---|---|
| Seiten | 7-14 |
| Seitenumfang | 8 |
| Publikationsstatus | Veröffentlicht - 2012 |
Abstract
Schlagwörter
- Model tests, Natural frequencies, Radial gate, Vibration, Frequency domain analysis, Gravitation, Hydraulic gates, Modal analysis, Ocean engineering, Water levels, Added mass effects, Experimental investigations, Flow induced vibrations, Hydrodynamic pressure, Pressure fluctuation, Radial gates, Canal gates
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2012. 7-14.
Publikation: Konferenzbeitrag › Paper › Forschung › Peer-Review
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TY - CONF
T1 - Experimental investigation of flow-induced radial gate vibrations at lower subansiri dam
AU - Schlurmann, T.
AU - Bung, D.B.
N1 - Cited By :1 Export Date: 1 February 2021
PY - 2012
Y1 - 2012
N2 - A study on flow-induced radial gate vibration is presented. Hydrodynamic pressures and forces are measured on a rigid physical model scaled 1:35 and compared to the natural frequencies obtained by a modal analysis. Natural frequencies are found to be significantly affected by the added-mass effect induced by the water column as well as by the pre-stress due to gravity. Pressure and force time series obtained for different partial opening and water levels are transferred into frequency domain. As a result the pressure fluctuations on the gate are found to be small and no dominant frequencies are detected from the amplitude spectra. Flow-induced vibrations are thus expected to be unlikely for the prototype.
AB - A study on flow-induced radial gate vibration is presented. Hydrodynamic pressures and forces are measured on a rigid physical model scaled 1:35 and compared to the natural frequencies obtained by a modal analysis. Natural frequencies are found to be significantly affected by the added-mass effect induced by the water column as well as by the pre-stress due to gravity. Pressure and force time series obtained for different partial opening and water levels are transferred into frequency domain. As a result the pressure fluctuations on the gate are found to be small and no dominant frequencies are detected from the amplitude spectra. Flow-induced vibrations are thus expected to be unlikely for the prototype.
KW - Model tests
KW - Natural frequencies
KW - Radial gate
KW - Vibration
KW - Frequency domain analysis
KW - Gravitation
KW - Hydraulic gates
KW - Modal analysis
KW - Ocean engineering
KW - Water levels
KW - Added mass effects
KW - Experimental investigations
KW - Flow induced vibrations
KW - Hydrodynamic pressure
KW - Pressure fluctuation
KW - Radial gates
KW - Canal gates
M3 - Paper
SP - 7
EP - 14
ER -