On internal damping of rotating beams

Morris Morduchow
naca-tn-1996
Dec 1949


For a beam rotating about a transverse axis and harmonically vibrating in a direction normal to its plane of rotation, it is assumed that an internal damping force exists inversely proportional to the vibration frequency and directly proportional to the time rate of change of the elastic load.

An Adobe Acrobat (PDF) file of the entire report:
http://naca.central.cranfield.ac.uk/reports/1949/naca-tn-1996.pdf