C型LNG船鞍座区域温度应力分析  

Thermal Analysis of Saddle Structure of Type C LNG Carrier

作　　者：蒋军[1] 徐丹 陈裴 JIANG Jun;XU Dan;CHEN Pei(Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Merchant Ship Design and Research Institute,Shanghai 201203,China)

机构地区：[1]上海交通大学,上海200240 [2]上海船舶研究设计院,上海201203

出　　处：《船舶设计通讯》2020年第1期45-50,共6页Journal of Ship Design

摘　　要：液化天然气(LNG)船在货舱区会形成一个温度梯度变化的温度场,导致相应结构产生温度应力。鞍座是LNG船的关键承载结构,用于支撑C型LNG液货罐。以某3 000 m3LNG运输船为例,计算分析温度应力对货舱区,尤其是鞍座结构的影响,研究结果表明,温度应力对C型LNG船鞍座强度有显著影响,在设计鞍座结构时不能忽略。A complex temperature distribution and thermal stress appear in the cargo hold of type C LNG carrier.The saddle structure is the most important structure which supports the LNG tank.The effect of thermal stress was calculated and analyzed on the cargo hold structure of a 3000 m 3 LNG carrier’s,especially on the saddle structure.According to the research result,it was found that the thermal stress should not be ignored when the strength of the saddle structure was evaluated.

关 键 词：C型LNG船 温度场 温度应力 鞍座 

分 类 号：U4415[建筑科学—桥梁与隧道工程]