关于海底S型管道铺设形态分析仿真研究  

Research on Configuration of S-Laying Pipeline

作　　者：昝英飞 韩端锋[1] 袁利毫[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《计算机仿真》2016年第2期308-312,共5页Computer Simulation

基　　金：国家科技重大专项(2011ZX05027-002);国家留学基金委(留金发[2014]3026)

摘　　要：S型管道铺设形态分析一直是进行海底管道铺设的首要问题,由于管道各部分的受力不同影响了管道各部分形态,从而导致准确计算管道形态具有很大的难度。基于S型管道的形态特点将管道划分为五个部分,提出多分段形态模型数值方法,根据各部分的受力特点建立微分方程,利用管道的几何与力学连续性边界条件通过牛顿迭代法求解管道形态。通过将计算结果与商业软件Orcaflex进行对比,以保证所采用分析方法的准确性。然后考虑了管道嵌入土壤的形态情况,针对管道参数对S型管道形态的影响进行了仿真分析,仿真结果表明管道壁厚与管道直径的变化对S型管道的形态有重要的影响,而且管道嵌入土壤的形态也随着参数的变化具有显著差别。采用多分段形态模型数值方法进行的S型铺管的形态与仿真,对实际的S型铺管作业的管道构形具有很好的指导作用。Configuration of S-laying Pipeline analysis is the most important problem in pipeline laying operation.Becauce different forces affect various parts of the pipeline,it is very difficult to accurately calculate the configuration of the pipeline. Based on the morphological characteristics,the S-laying pipeline was divided into five parts,and a multi-segment pipeline configuration numerical model was proposed in the paper. Differential equations were established based on the characteristics of each part of the force analysis,and the Newton-Raphson method was used to solve the configuration of S-laying pipeline with geometric and mechanical continuity of pipeline. The results were compared with commercial software Orcaflex to ensure the accuracy of the analysis method used. The model was used to conduct the analysis of effects of pipeline parameters,and the configuration of pipeline embedded in the soil was taken into account. The results show that the pipeline wall thickness and the pipeline diameter are the critical factors influence on the pipeline configuration,and the pipe embedment is changed with the change of the parameters. It is good a guidance for the pipe configuration of the S-laying operations using multi-segment pipeline configuration numerical model methods.

关 键 词：S型铺管 管道形态 管土作用 数值分析 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]