Interaction Forces Between Two Ships During Underway Replenishment. (13th June 2016)

• Record Type: Journal Article
• Authors: Miller, Anna
• Is Part Of: Journal of navigation. Volume 69:Number 6(2016)
• Page Start: 1197
• Page End: 1214
• Publication Date: 2016-06-13
• Subjects: Interaction forces verification, -- UNREP, -- Real conditions suction forces measurement, -- Real time measurement; Navigation -- Periodicals; 623.8905
• DOI: 10.1017/S0373463316000308
• Languages: English
• ISSNs: 0373-4633

Abstract

Abstract : Knowledge of forces and yaw moments which exist between a pair of vessels moving parallel to each other is crucial to the design of their automatic motion control system. Studies involving measurements of forces and moments occurring between a pair of ships were undertaken. The research was carried out on the basis of two real floating training ship models made at 1:24 scale in real conditions on the Silm Lake in Ilawa Kamionka. As a result, suction forces and yaw moments occurring between the pair of vessels calculated according to semi-empirical formula were verified. It was found that the process of overtaking and parallel motion (which is a quasi-stationary motion) could not be modelled in the same way. Nevertheless, the results confirmed the presence of forces and moments with values similar to those in the catch-up and parallel motion phases during the ships' overtaking manoeuvre. Thanks to this confirmation, it was possible to use the results of the analytical calculation for the catch-up phase during design of the ships' parallel motion automatic control system.