Název: Vibrations of blades bunches
Autoři: Půst, Ladislav ; Pešek, Luděk
Typ dokumentu: Příspěvky z konference
Konference/Akce: Engineering Mechanics 2014 /20./, Svratka (CZ), 2014-05-12 / 2014-05-15
Rok: 2014
Jazyk: eng
Abstrakt: Paper describes a mathematical model for analysing the dynamic characteristics of five-blades bunch with different damping connections among individual blades. The connections of blades by means of special rubber elements either with the fixed contact with neighbouring blades or with one-sided slip is presented. Systems with dry friction connections among blades by means of direct contacts or by inserted dry friction elements are described as well. As an example of analysis results, response curves of five-blades-bunch excited on first blade at different dry friction force in the first bending resonance is shown. Elaborated analysis create the basic theoretical background for evaluation of measurement on experimental bladed disk set in the laboratory of Institute of Thermomechanics of ASCR and it is also applied for evaluation of effectiveness of methods for suppression of forced vibration of blades.
Klíčová slova: damping; dry friction; five-blades-bunch; harmonic excitation; response curve
Zdrojový dokument: Engineering mechanics 2014, ISBN 978-80-214-4871-1, ISSN 1805-8248

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0239495

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-177623


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference