Original scientific paper
https://doi.org/10.21278/brod67307
CALCULATION ON THE UPRIGHTING PROCESS OF A CAPSIZED SHIP
De-wei Pan
; Transportation Equipments and Ocean Engineering College Dalian Maritime University
Cheng-xin Lin
; Transportation Equipments and Ocean Engineering College Dalian Maritime University
Zhi-jie Liu
; Transportation Equipments and Ocean Engineering College Dalian Maritime University
De-ping Sun
; Marine Engineering College, Dalian Maritime University
Abstract
The processes of marine salvage require firstly the uprighting of the capsized ship, essentially bringing the deck to point up. Analysis and computation are the keys for the success in the application of the design schemes. Up to date, there are few researches on calculation methods for uprighting process of capsized ships at China and abroad. Researches about the effect of flooding quantity and the variation of the longitudinal strength during the uprighting process of capsized and damaged ships are even rarer. In this paper, hydromechanical equations to describe the effect of flooding are established and a calculation method for the longitudinal strength is introduced with reference to the hydrostatic theory for ships. Three typical uprighting processes are summarized according to the methods of treatment of damaged compartment. The stability of the inverted ship is calculated and analyzed using the General Hydrostatics software(GHS). Reserve buoyancy, shear forces, bending moments and torques are calculated in nine positions along the ship.
Keywords
hydrostatic; capsize; damaged ship; uprighting
Hrčak ID:
162672
URI
Publication date:
30.9.2016.
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