Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Stability increase of aerodynamically unstable rotors using intentional mistuning
Year:2008
Research Areas
  • Naval engineering
Information
Abstract
A new simple asymptotic mistuning model, which constitutes an extension of the well known fundamental mistuning model for groups of modes belonging to a modal family exhibiting a large variation of the tuned vibration characteristics, is used to analyze the effect of mistuning on the stability properties of aerodynamically unstable rotors. The model assumes that both the aerodynamics and the structural dynamics of the assembly are linear, and retains the first-order terms of a fully consistent asymptotic expansion of the tuned system where the small parameter is the blade mistuning. The simplicity of the model allows the optimization of the blade mistuning pattern to achieve maximum rotor stability. The results of the application of this technique to realistic welded-in-pair and interlock low-pressure-turbine rotors are also presented.
International
Si
JCR
Si
Title
JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME
ISBN
0889-504X
Impact factor JCR
0,509
Impact info
Volume
130
10.1115/1.2720503
Journal number
0
From page
1
To page
10
Month
ENERO
Ranking
Participants
  • Autor: Roque Corral (ITP)
  • Autor: Carlos Martel Escobar (UPM)
  • Autor: José Miguel Llorens (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
  • Departamento: Fundamentos Matemáticos de la Tecnología Aeronáutica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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