Experimental determination of torque acting on a ship's hull

Authors: S.O. Klimov, A.P. Anosov, N.I. Voskovschuk, V.O. Bessonova

 

Abstract

 

Determination of external forces acting on a ship's hull in conditions of real sea roughness is one of the main problems of the ship's structural mechanics. Direct measurement of external forces acting on the ship's hull is almost impossible. To do this, it is necessary to know the law of water pressure distribution over the surface of the entire submerged part of the hull at any time, which is technically impossible. In practice, external loads are measured indirectly by measuring and analyzing the deformations that arise in ship structures during their action. In the general case, when a ship moves on waves, deformations occur in hull structures caused by the simultaneous action of a number of external forces, and one of the tasks is to separate them into components. For vessels with wide deck openings, hull torsion is one of the main strength issues. The article provides a substantiation of the device and method for measuring the torque acting on the ship's hull, with minimal errors due to the impact of other force effects.

 

Keywords: torsion of the ship's hull, torque measurement, device and method for measuring torque.

 

References  

1.   Kandel F.G., Galahov I.N., Raskin Y.N., Fridlyanskiy A.Z. Prochnost sudov smeshannogo plavaniya [Strength of ships of river-sea navigation]. — L., Sudoctroenie, 1974.

2.   Sposob opredeleniya krutyaschego momenta sudna v usloviyakh volneniya [Method for determination of ship torque in rough conditions]. Patent of invention №2734838 / A.P. Anosov, N.I. Voskovschuk, S.O. Klimov, V.O. Bessonova. — Bull No. 30, 23.10.2020.

 

About authors: 

S.O. Klimov - Far Eastern Federal University, Vladivostok, e-mail: liminid@mail.ru

A.P. Anosov - DSc, professor, Far Eastern Federal University, Vladivostok, e-mail: anosov49@mail.ru

N.I. Voskovschuk - PhD, professor, Far Eastern Federal University, Vladivostok, e-mail: nvoskov@mail ru

V.O. Bessonova - Far Eastern Federal University, Vladivostok, e-mail: bessonchik99@gmail.com

Issue: 62/63 (2021)

For citation: S.O. Klimov, A.P. Anosov, N.I. Voskovschuk, V.O. Bessonova. Experimental determination of torque acting on a ship's hull. Research Bulletin by Russian Maritime Register of Shipping. 2021, No. 62/63, pp. 100-105.

UDC 621.74:624.012

Pp: 100-105