Table 10. Whirling speed (RPM) due to diameter and stiffness variations (example 3), (n=*60/2)

From

The Effect of the Shaft Diameter and Torsional Stiffness on the Whirling Speed of the Ship Propeller Shafting System

Jabbar Firouzi, Hassan Ghassemi

Journal of Mechanical Design and Vibration. 2017, 5(1), 37-42 doi:10.12691/jmdv-5-1-5