Research on Influence Factors of Tug Cable’s Breaking Force in Narrow Channel

Abstract

Tug cable directly bears ship’s towage force. It is necessary to study influence factors of tug cable’s breaking force in narrow channel for towage safety. In the present paper, influence factors of tug cable’s breaking force are analyzed by using dimension analysis method. The research results show that tug cable’s breaking force is closely related with dynamic coefficient, Newton number, and Mach number. Half experience and half theory formula of tug cable’s breaking force can be obtained by regression analysis experiment data.