caa a22 4500 445362472 CHVBK 20180317142919.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10010-011-0146-3 doi (NATIONALLICENCE)springer-10.1007/s10010-011-0146-3 Werner U. Industry, Drive Technologies, Large Drives, Products R&D, Siemens AG, Vogelweiherstraße 1-15, 90441, Nuremberg, Germany aut Elastic multiple-mass model for rotordynamic analysis of flexible electrical rotors [Elektronische Daten] [U. Werner] Elastisches Mehrmassenmodell zur rotordynamischen Analyse von flexiblen Elektrorotoren The paper presents an elastic multiple-mass model for rotordynamic analysis of flexible electrical rotors supported in sleeve bearings, considering mechanical unbalances and electromagnetic forces. This model has been especially developed for flexible electrical rotors, which operate near below or near above the first critical bending speed of the rotor. Using this simplified model, a static rotor active part eccentricity can be simulated and the orbital movement of the rotor can be calculated. Additionally, the influence of different balancing concepts—elastic balancing versus rigid balancing—on the shaft vibrations is analyzed. To verify the model, a finite element analysis was performed, which indicates a satisfactory match. On the one hand, the aim of the paper is to derive an elastic multiple-mass model for rotordynamic analysis of flexible electrical rotors for special boundary conditions. On the other hand, the aim is to show the mathematical coherences—based on a simplified model—between the rotordynamics, the oil film characteristics of the sleeve bearings, the elasticity of the rotor structure, the electromagnetics and the balancing concept. Springer-Verlag, 2011 Forschung im Ingenieurwesen Springer-Verlag 75/4(2011-12-01), 209-229 0015-7899 75:4<209 2011 75 10010 https://doi.org/10.1007/s10010-011-0146-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10010-011-0146-3 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Werner U. Industry, Drive Technologies, Large Drives, Products R&D, Siemens AG, Vogelweiherstraße 1-15, 90441, Nuremberg, Germany aut NATIONALLICENCE 773 0- Forschung im Ingenieurwesen Springer-Verlag 75/4(2011-12-01), 209-229 0015-7899 75:4<209 2011 75 10010 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer