Abstract
An analytical/numerical stability analysis of a turbine rotor system with Alford effects was carried out. A six-degree-of-freedom model of a rotor system supported at both ends by bearings was developed. A classical Euler-Bernoulli beam finite element with support springs and dampers was employed for structural modeling. The results show that the Alford forces can indeed cause structural instability and that external damping can stabilize such a rotor system.
Original language | English |
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Pages (from-to) | 777-790 |
Number of pages | 14 |
Journal | Journal of Sound and Vibration |
Volume | 258 |
Issue number | 4 |
DOIs | |
State | Published - Dec 2002 |