Theoretical Study of Euler's Formula and Loss Elimination Effect on Rope Windings of Winch Drum

Rope and rope drum are important parts of winding machine and should be improved to enhance security issues. Theoretical analysis of drum dynamic force during the course of spooling into drums in multi-layer winding is introduced. By study and deduction of Euler’s formula, a more accurate method is introduced to study the multi-layer winding drum force. Analytical model of rope is studied to illustrate the loss elimination effect. Course of the rope load relieving is explained. And then the analytical equations for calculation and pragmatic numerical estimation of rope tensional coefficient are revealed.