機械工学
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Reducing Turbine Vibrations
The Model
Flexible components from the Rotating Machinery library are used. The motor applies a rotational speed that exceeds the critical speed of the turbine.
The external damping is truncated and applied as a spring-damper support.
Simulation Results
The response of the system in the time domain.
The figure shows disc deflections for different external damping levels.
The response of the system in the frequency domain.
The system without external damping starts to heavily vibrate at the critical speed. Adding external damping ensures that the system operates with reduced vibrations at greater than critical speed.
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