Modeling and experimental validation of the vibration in an unbalance multi-stage rotor

Oscar Javier Araque De Los Ríos, Wilmar Cruz, Nelson Arzola

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva


This work proposes a finite element method model to predict lateral vibration phenomena arising in the multi-stage rotor (seven stages) with unbalance, including damping and gyroscopic effects. The rotor dynamic analysis includes mathematical and experimental determination of the first and second critical speeds of the rotor and the assessment of the effects induced by the different unbalance combinations. The results show that while considering the unbalance effects in the impellers, critical speeds move to lower frequencies compared to normal conditions when the rotor is properly balanced. Finally, the results obtained analytically achieved a good degree of correspondence with experimental validation tests.
Idioma originalInglés
Número de artículo13(3), 2019
Páginas (desde-hasta)5703
Número de páginas5716
PublicaciónJournal of Mechanical Engineering and Sciences
EstadoPublicada - 29 sep 2019

Palabras clave

  • Rotor dynamics
  • critical speed
  • lateral vibration
  • finite element analysis
  • stiffness
  • damping.

Citar esto