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Excitation of rotating disk by stationary permanent magnets
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SYSNO ASEP 0359569 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Excitation of rotating disk by stationary permanent magnets Tvůrce(i) Půst, Ladislav (UT-L) RID
Pešek, Luděk (UT-L) RIDZdroj.dok. Engineering Mechanics 2011. - Prague : Institute of Thermomechanics AS CR, v. v. i., 2011 / Fuis V. - ISBN 978-80-87012-33-8 Rozsah stran s. 503-506 Poč.str. 4 s. Akce Engineering Mechanics 2011 /17./ Datum konání 09.05.2011-12.05.2011 Místo konání Svratka Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova rotating disk ; traveling backwards waves ; constant force excitation ; resonance suppression Vědní obor RIV BI - Akustika a kmity CEP GA101/09/1166 GA ČR - Grantová agentura ČR CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000313492700119 Anotace Abstract: Flexural vibrations of rotating disk contain forward and backward traveling waves can be excited at certain speed of rotating disk also by a standing constant single point force or by multiple points standing forces, realized e.g. by permanent magnets fixed in non-rotating space. Presented paper is contribution to the theoretical background of a new experimental excitation technique elaborated in Institute of Thermomechanics for investigation of a bladed turbine disk model with imperfection by addition several damping heads on ends of blades. Mathematical model of imperfect rotating disk was derived by using data gained experimentally and by FE computed for three lowest split modes of vibrations. It was shown how either the whole spectrum of modes of vibrations can be recorded or some resonance of selected mode can be suppressed on emphasized by means of appropriate number and positions of permanent magnets. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2012
Počet záznamů: 1