000015542 001__ 15542
000015542 005__ 20161115135322.0
000015542 04107 $$aeng
000015542 046__ $$k2013-06-12
000015542 100__ $$aSegui, B.
000015542 24500 $$aUncertainties in Multi-Stage Rotors Modeled By the Polynomial Chaos Expansion

000015542 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015542 260__ $$bNational Technical University of Athens, 2013
000015542 506__ $$arestricted
000015542 520__ $$2eng$$aIn this work the effects of uncertainties in turbomachinery rotors is assessed using the Polynomial Chaos Expansion. The multistage cyclic symmetry approach is used to reduce the size of the problem and the uncertainties are modeled as variations in the material properties of the blades. A numerical example consisting in an assembly of two bladed disc is presented. Results obtained by polynomial chaos are validated by comparisons with MonteCarlo simulations. As a consequence of the included uncertainties changes in nature of modes are observed.

000015542 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015542 653__ $$astochastic modal analysis, bladed discs, multistage cyclic symmetry, Polynomial Chaos Expansion.

000015542 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015542 720__ $$aSegui, B.$$iFaverjon, B.$$iJacquet-Richardet, G.
000015542 8560_ $$ffischerc@itam.cas.cz
000015542 8564_ $$s126663$$uhttps://invenio.itam.cas.cz/record/15542/files/1044.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 27 UNCERTAINTY QUANTIFICATION IN COMPUTATIONAL DYNAMICS
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000015542 962__ $$r15525
000015542 980__ $$aPAPER