支持構造を含んだ液化ガス球形タンクの有限要素法による応力解析

概要

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In this paper, the authors report the theoretical analysis on the strength of the spherical tank set on board a Gas Tanker, which has been designed to be filled alternately with pressurized liquified petroleum gas and low temperature liquified petroleum gas. At the calculation of the above tank including tank supporting structures using a computer program NKSAP 1, two models were assumed. The first model includes the spherical tank, saddles and liners, and the second model includes, in addition to the above, the tank supports and tank hold. It is found from the analysis that the stress distribution in the spherical tank can be well estimated by using the former simplified model in place of the latter complicated model within a satisfactory accuracy for practical engineering purpose.
財団法人日本海事協会の論文