000012426 001__ 12426
000012426 005__ 20160816141444.0
000012426 04107 $$aeng
000012426 046__ $$k2016-05-09
000012426 100__ $$aJamróz, T.
000012426 24500 $$aSTUDY OF LOCALIZED VIBRATIONS OF MISTUNED BLADES OF CENTRIFUGAL COMPRESSOR

000012426 24630 $$n22.$$pEngineering Mechanics 2016
000012426 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Praha
000012426 506__ $$arestricted
000012426 520__ $$2eng$$aPresented paper deals with sensitivity analysis of a mistuning centrifugal compressor. Vibrations of blades of mistuning bladed disk generate local zoning of vibration modes as well as amplitude magnification, which primarily reduces the high cycle fatigue life of engine. The sensitivity analysis uses a criteria for determination of the level of these local mode effects depending on mistuning deviations. The analysis shows that some vibration modes of centrifugal compressor structure which are characterized by significant percentage of blades on the total bladed disk strain energy, have a significantly higher sensitivity to blade mistuning. These vibration modes are characterized with low structural coupling blades such as higher bending modes or modes with high numbers of nodal diameter lines.

000012426 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012426 653__ $$aCentrifugal compressor, mistuning, blade vibration, mode localization.

000012426 7112_ $$aEngineering Mechanics 2016$$cSvratka, CZ$$d2016-05-09 / 2016-05-12$$gEM2016
000012426 720__ $$aJamróz, T.
000012426 8560_ $$ffischerc@itam.cas.cz
000012426 8564_ $$s283849$$uhttps://invenio.itam.cas.cz/record/12426/files/056bo_o_dyn.pdf$$yOriginal version of the author's contribution as presented on CD, id 056, section DYN.
000012426 962__ $$r12369
000012426 980__ $$aPAPER