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Simulation of Rotor System Vibrations Using Experimentally Verified Super Elements

[+] Author Affiliations
Sergei Semenov, Mikhail Nikhamkin, Nikolai Sazhenkov, Grigorii Mekhonoshin

Perm National Research Polytechnic University, Perm, Russia

Irina Semenova

VSB-TUO, Prague, Czech Republic

Paper No. IMECE2016-66950, pp. V009T12A016; 8 pages
doi:10.1115/IMECE2016-66950
From:
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids; NDE, Diagnosis, and Prognosis
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5063-3
  • Copyright © 2016 by ASME

abstract

A numerical technique based on finite element model reduced by using experimentally verified superelements is presented in the paper. This method can be used for modelling of rotor systems with elements which can produce nonaxisymmetrical vibration modes (fan, flexible disks and etc.) in operating frequency range thus forcing to calculate 3D models without cycle symmetry. Testing of proposed mathematical modeling method is produced using special rotor test rig. The procedure of superelements creation and verification is provided. Critical speeds of test rotor system were determined numerically and experimentally. Comparative analysis of results is provided.

Copyright © 2016 by ASME

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