Theory of the Ship and Construction Mechanics
Article: received: 22.06.2020; reviewed: 07.09.2020; accepted: 22.09.2020; financing: Far Eastern Federal University.
DOI: http://www.dx.doi.org/10.24866/2227-6858/2020-4-1

Kovrov A., Novikov V.

ANDREY KOVROV, Engineer-technologist, kovrov.andrey@mail.ru
Far East Shipyard Zvezda
Bolshoi Kamen, Russia
VALERY NOVIKOV, Candidate of Engineering Sciences, Associate Professor, 
ScopusID: 5641710410, leka1551@rambler.ru (corresponding author)
Polytechnic Institute, Far Eastern Federal University
Vladivostok, Russia

Calculation Analysis of Pressure on the Tanker Hull during the Impacts with an Ice Floe

Abstract: At present paper the examples of ice-class vessels damages and the results of dynamic loads calculation applied to the hull of a tanker ship with Ice3 class and floe ice with different edge contours are presented.

The dependences of contact pressures on the bow part of the vessel, floe ice destruction depth, contact time and area for different speed were obtained with the structural mechanics of the ship methods.

Modelling results show a significant increasing the contact pressure intensity of an ice floe with a corner edge on to the vessel hull with the increasing the tanker speed. The 3D numerical model was used for dynamics pressure assessment on the middle part of the vessel.

A comparison of contact pressure calculated values with the regulated values for bow and middle parts of the vessel was carried out. The obtained results show the necessity to take into account the exceedance of regulated loads to the bow part of the vessel in actual speed range during the ice navigation conditions.

Keywords: ice floe impact, contact pressure, impact time, load intensity

Contribution of the authors: the authors contributed equally to this article.
The authors declare no conflicts of interests.

See the reference in English at the end of the article