海洋铺管力学模型的改进及有限元求解  

Improvement of the Marine Pipelines' Mechanical Model and Its FEM Solution

作　　者：史政[1] 严仁军[1] 陈晓飞[1] 李志锋[1] 刘新立[1] 

机构地区：[1]武汉理工大学交通学院,武汉430063

出　　处：《船海工程》2009年第6期95-98,共4页Ship & Ocean Engineering

摘　　要：针对海洋管道在铺设过程中,因管道变形很大直接影响海洋管道的安全使用问题,结合传统海洋管道受力分析,指出了水作用力处理方法的不当之处,给出计算水作用力的公式,并基于此公式对有限元对管道力学模型相关条件进行合理假设,对传统方法和改进方法分别进行实例计算,认为改进的模型更加合理。Aiming at the problem of large deformation of marine pipelines in laying process which affects its safety directly, the traditional method of the force of water was analyzed to set forth a modified mechanical model of the marine pipelines. Some reasonable assumptions were made for the FE analysis according to this modified model. Numerical resuits from the traditional formula and modified method were compared, showing that the latter is more reasonable.

关 键 词：海洋管道 受力分析 水作用力 有限元 

分 类 号：U661.4[交通运输工程—船舶及航道工程]