某3 000 DWT LNG燃料動(dòng)力散貨船燃料儲(chǔ)罐基座及其支承結(jié)構(gòu)強(qiáng)度分析

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摘    要：3000DWT LNG燃料動(dòng)力散貨船的燃料儲(chǔ)罐基座及其支承結(jié)構(gòu)強(qiáng)度，是保證LNG燃料儲(chǔ)罐裝置安全的基礎(chǔ)。本文采用板梁組合模型對(duì)其結(jié)構(gòu)建立有限元模型，根據(jù)規(guī)范的載荷要求對(duì)其進(jìn)行數(shù)值計(jì)算分析。計(jì)算結(jié)果表明，其最大的von Mises應(yīng)力在許用應(yīng)力范圍內(nèi)，滿足規(guī)范要求。

關(guān)鍵詞：LNG燃料儲(chǔ)罐基座；局部強(qiáng)度分析；數(shù)值計(jì)算分析；許用應(yīng)力

中圖分類(lèi)號(hào)：U674.98                               文獻(xiàn)標(biāo)識(shí)碼：A

Strength Analysis of LNG Fuel Storage Tank Foundation and Its Reinforcement Structure of 3 000 DWT LNG Fuel Bulk Carrier

SU Luoqing1，  CHEN Zhenghao1，  ZHENG Jiayan2，  LU Longwen1

（ 1.Guangzhou Marine Engineering Corporation， Guangzhou 510250;  2. CSSC Huangpu Wenchong Shipbuilding Co.， Ltd.， Guangzhou 511464 ）

Abstract： The strength of LNG fuel storage tank foundation and its reinforcement structure of 3000 DWT LNG single fuel bulk carrier is the basis to ensure the safety of LNG fuel storage tank device， and the local strength analysis of relevant structures needs to be carried out according to CCS rules. By creating the finite element model of its related structures by plate beam composite model，the numerical computation and analysis are carried out according to the load requirements of the rule. And the calculation results show that its maximum von Mises stress is within the allowable stress range， that is， the strength of LNG fuel tank base and hull support structure fulfils the requirements of the codes.

Key words： LNG fuel storage tank foundation; local strength analysis; numerical computation and analysis; allowable stress

1     前言

大力推動(dòng)建造新能源動(dòng)力船舶項(xiàng)目和對(duì)傳統(tǒng)的的柴油動(dòng)力船舶進(jìn)行LNG動(dòng)力改造，是廣東省政府發(fā)展珠江綠色航運(yùn)的重要舉措。（剩余4023字）