SHAFT STIFFNESS
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United States of America Patent
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N/A
Issued Date -
Jan 14, 2016
app pub date -
Jun 18, 2015
filing date -
Jul 14, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method to determine shaft stiffness of a rotating shaft, the shaft coupling a turbine to drive the rotation and a load to be driven by the rotation. For a given operational temperature and rotational speed of the shaft, the method including steps to determine polar moments of inertia of the load and the turbine. Determine natural torsional vibration frequency of the shaft. Determine the shaft stiffness by calculation using the inertias and vibration frequency.
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