Influence of material creep on rotor dynamics
Technical Report
·
OSTI ID:6032767
A simplified model of a single whirling mode was used to show that slow rotor creep has a slight destabilizing effect on forward whirls when the rotor rotates supercritically and that the amplitude of the forced synchronous whirl can grow without limit under steady rotation at certain subcritical rotation rates. An elastic rotor system is described. A standard three-element viscoelastic model and a power-law creep model were studied. Results for the two creep models are compared. The long-time effects of creep may be interpreted as causing a wandering unbalance.
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge (USA)
- DOE Contract Number:
- AC05-76OR01779
- OSTI ID:
- 6032767
- Report Number(s):
- UVA-ER-966-85/U; ON: DE85008545
- Country of Publication:
- United States
- Language:
- English
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