Flow-Excited Turbine Rotor Instability

Abstract

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The problem of steam whirl is one of the technological limits that now prohibit the development of power-generating turbomachinery substantially above GW. Due to steam flow, self-excited vibrations develop at high loads in the form of stable limit cycles that, at even higher loads, deteriorate to chaotic vibration of high amplitude.

Keywords

• Rotor Dynamics
• Steam whirl
• Turbomachinery
• Rotor stability
• Nonlinear systems
• Limit cycles.