000012402 001__ 12402
000012402 005__ 20160816141443.0
000012402 04107 $$aeng
000012402 046__ $$k2016-05-09
000012402 100__ $$aFerfecki, P.
000012402 24500 $$aSTABILITY ANALYSIS OF THE LATERAL OSCILLATIONS OF A FLEXIBLY SUPPORTED VISCOELASTIC JEFFCOTT ROTOR

000012402 24630 $$n22.$$pEngineering Mechanics 2016
000012402 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Praha
000012402 506__ $$arestricted
000012402 520__ $$2eng$$aMaterial damping has a significant influence on vibrations of flexible rotors and can induce their self excited oscillations. The squeeze film dampers inserted in the rotor supports are frequently used to suppress occurrence of these undesirable operating conditions. Modelling the shaft by means of a KelvinVoigt material can arrive at the overestimation of the effect of internal damping on the rotor movement. This was a motivation to develop a procedure based on utilization of the Zener material (standard solid theoretical material) to represent the shaft of a Jeffcott rotor supported by squeeze film dampers. The development and testing of this procedure, the experimental determination of the appropriate material constants, and learning more on the influence of material damping on the stability and vibration attenuation of flexible rotors are the principal contributions of the presented article.

000012402 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012402 653__ $$aJeffcott rotor, Zener material, squeeze film dampers, vibration amplitude and stability.

000012402 7112_ $$aEngineering Mechanics 2016$$cSvratka, CZ$$d2016-05-09 / 2016-05-12$$gEM2016
000012402 720__ $$aFerfecki, P.$$iZapomněl, J.$$iKozánek, J.$$iDekýš, V.
000012402 8560_ $$ffischerc@itam.cas.cz
000012402 8564_ $$s714236$$uhttps://invenio.itam.cas.cz/record/12402/files/032bo_o_dyn.pdf$$yOriginal version of the author's contribution as presented on CD, id 032, section DYN.
000012402 962__ $$r12369
000012402 980__ $$aPAPER