Remedy for Misalignment of Bilobe Tank Heads in Liquefied Petroleum Gas Carrier

被引：0

作者：

Senjanovic, Ivo ^{[1
]}

Parunov, Josko ^{[1
]}

Rudan, Smiljko ^{[1
]}

机构：

[1] Univ Zagreb, Fac Mech Engn & Naval Architecture, Zagreb 41000, Croatia

来源：

BRODOGRADNJA | 2009年 / 60卷 / 03期

关键词：

LPG carrier; bilobe tank; misalignment; reinforcement; strength analysis; FEM;

D O I：

暂无

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

The article describes the remedy for a misalignment of Y-joint in hemispherical and torispherical heads of the bilobe cargo tank on a Liquefied Petroleum Gas Carrier The misalignment is the result of connecting relatively thin shells and production difficulties. The measured rather large shell eccentricity in the Y-joint causes bending moment, which cannot be withstood by shells designed as membrane, and therefore it has to be controlled. The remedy of misalignment is achieved by reinforcement of the Y-joint with inside and outside bars and knees. In this way stress concentration determined by the FEM analysis is reduced within the allowable stress given for secondary stress level.

引用

页码：290 / 297

页数：8