基于三维模型的FSRU上建总段吊装工艺仿真技术研究

Research on Simulation of Hoisting Technology of FSRU Superstructure Based on Three-dimensional Model

目前,大部分船体吊装工艺仿真主要依靠PATRAN、ANSYS等通用有限元软件进行,存在大量的重复性建模;有限元网格划分通过手工进行,消耗了大量的设计人员工时,不能快速地对吊装工艺方案进行优化迭代,影响了设计的质量。本文基于统一的三维模型,以“中间产品”完整性为理念,以FSRU船上建总段为研究对象,对船舶总段吊装工艺进行仿真模拟和有限元计算分析,来保证吊装工艺方案的准确性、吊装过程的安全性、快速搭载的可行性,从而大大提高设计效率、舾装预装率,确保中间产品完整性。通过精细制造,缩短建造周期,降低成本。

At present,most of the hull hoisting process simulation mainly depends on general finite element software such as PATRAN and ANSYS,and there is a lot of repetitive modeling.Finite element meshing is done manually and consumes a lot of designer time.The optimization and iteration of the hoisting process scheme cannot be performed quickly,which affects the quality of the design.This research is based on the unified 3D model,with the concept of“intermediate product”integrity,and taking the FSRU ship s superstructure as the research object.The simulation and finite element calculation and analysis of the ship s main section hoisting process are carried out to ensure the accuracy of the hoisting plan,the safety of the hoisting process,and the feasibility of rapid loading.Eventually,the design efficiency,outfitting pre-installation rate and the integrity of intermediate products are greatly improved to achieve the purpose of fine manufacturing,shorten the construction cycle,and reduce costs.