000008865 001__ 8865
000008865 005__ 20141204083527.0
000008865 04107 $$aeng
000008865 046__ $$k12/05/2014
000008865 100__ $$aPůst, L.
000008865 24500 $$aVIBRATIONS OF BLADES BUNCHES

000008865 24630 $$n20.$$pEngineering Mechanics 2014
000008865 260__ $$bBrno University of Technology- Institute of Solid Mechanics, Mechatronics and Biomechanics
000008865 506__ $$arestricted
000008865 520__ $$2eng$$aPaper 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-bladesbunch 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.

000008865 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000008865 653__ $$aDamping, Dry friction, Five-blades-bunch, Harmonic excitation, Response curve.

000008865 7112_ $$aEngineering Mechanics 2014$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2014
000008865 720__ $$aPůst, L.$$iPešek, L.
000008865 8560_ $$ffischerc@itam.cas.cz
000008865 8564_ $$s625692$$uhttps://invenio.itam.cas.cz/record/8865/files/117-Pust-CD.pdf$$yOriginal version of the author's contribution as presented on CD, paper No. 117.
000008865 962__ $$r70
000008865 980__ $$aPAPER