Hydrodynamic load impact on vibrations of fuel element clusters in water-moderated water-cooled power reactor (VVER) fuel assemblies
| Autor: | V. V. Perevezentsev, V. I. Solonin |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Engineering
Spectral power distribution business.industry Mechanical Engineering Water cooled Flow (psychology) Mechanical engineering Mechanics Industrial and Manufacturing Engineering Line (electrical engineering) Vortex Vibration Physics::Chemical Physics VVER Safety Risk Reliability and Quality business Casing Physics::Atmospheric and Oceanic Physics |
| Zdroj: | Journal of Machinery Manufacture and Reliability. 38:388-392 |
| ISSN: | 1934-9394 1052-6188 |
| DOI: | 10.3103/s1052618809040165 |
| Popis: | For the first time, the hydrodynamic loads on fuel element clusters are specified by measuring pressure pulsations in the gap between external line of the fuel elements and the internal surface of the hexahedral casing in VVER-440 fuel elements in the initial hydrodynamic part close to the lower support grid and in the region of steady flow. It is shown that the formation conditions of vortex flow structure at the fuel assembly input influence substantially the hydrodynamic load levels and spectral distribution and the corresponding vibration response of the fuel element clusters in the heat carrier longitudinal flow. The findings may be used to analyze vibration processes in the fuel assemblies of water-cooled nuclear reactors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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