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Description
| - Systém monitoringu volných částí je široce rozšířený v primárním chladícím systému jaderných elektráren. Jeho jednou součástí by měl být odhad hmotnosti a energie volných částí. Tento systém je založen na meření vibrací vyvolaných nárazem. Vhodnými indikátory jsou kontaktní doba, působící síly a spektrum vyvolaných vibrací. V tomto článku jsou tyto indikátory analyzovány s využitím experimentálních dat získaných v laboratorních podmínkách. Impaktujícími objekty byly ocelové koule různých hmotností a rozměrů. Objektem nárazů byla ocelová deska. Signály byly snímány piezo-akcelerometry a byly analyzovány v časové, frekvenční a časo-frekvenční oblasti. Situace byla řešena analyticky a simulačně s využitím MKP a obě metody pak byly porovnány s experimenty. (cs)
- Loose Part Monitoring System is wide spread in the primary coolant system in nuclear power plants. One part of this system should be the mass and energy estimation of detected loose parts. This system is based on the measurement of the vibrations excited by the impact. Very useful indicators are contact time, forces and spectrum of vibrations. In this paper, these indicators are analyzed with use of experimental data obtained under laboratory conditions. The impact objects were steel spheres of various mass, impact velocities and angles. The target object was a steel desk. Signals were measured by piezoelectric accelerometers and were analyzed in time, frequency and in time-frequency domain. The situation was solved analytically and simultaneously by FEM and both methods were compared with experiments.
- Loose Part Monitoring System is wide spread in the primary coolant system in nuclear power plants. One part of this system should be the mass and energy estimation of detected loose parts. This system is based on the measurement of the vibrations excited by the impact. Very useful indicators are contact time, forces and spectrum of vibrations. In this paper, these indicators are analyzed with use of experimental data obtained under laboratory conditions. The impact objects were steel spheres of various mass, impact velocities and angles. The target object was a steel desk. Signals were measured by piezoelectric accelerometers and were analyzed in time, frequency and in time-frequency domain. The situation was solved analytically and simultaneously by FEM and both methods were compared with experiments. (en)
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Title
| - Analytical and experimental loose part impact mass and energy evaluation
- Analytical and experimental loose part impact mass and energy evaluation (en)
- Analytické a experimentální vyhodnocení hmotnosti a energie volných částí (cs)
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skos:prefLabel
| - Analytical and experimental loose part impact mass and energy evaluation
- Analytical and experimental loose part impact mass and energy evaluation (en)
- Analytické a experimentální vyhodnocení hmotnosti a energie volných částí (cs)
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skos:notation
| - RIV/49777513:23520/08:00500571!RIV09-MSM-23520___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/49777513:23520/08:00500571
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - mass and energy estimation; Hertz theory; frequency analysis; loose part monitoring (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...v/mistoKonaniAkce
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http://linked.open...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - Proceedings of 9th International Carpathian Control Conference ICCC'2008
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Janeček, Eduard
- Liška, Jindřich
- Kodet, Pavel
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http://linked.open...vavai/riv/typAkce
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http://linked.open.../riv/zahajeniAkce
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number of pages
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http://purl.org/ne...btex#hasPublisher
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https://schema.org/isbn
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http://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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