Modular Replacement Virtual Construction Analysis of Single Point Mooring Locking Device Rear Bracket
A modular replacement scheme was proposed to improve welding quality,structural reliability,and on-site con-struction efficiency in response to welding cracks caused by repeated welding repairs on the locking mechanism and local structure of FPSO single point mooring system.A modular replacement method was adopted to evaluate the welding deformation during the base replacement process of a single point locking mechanism through thermal elastoplastic numerical simulation.The welding se-quence and groove design were optimized to control the deformation and residual stress during the welding process.At the same time,module boundary design and special requirements for different module types were considered to adapt to the diversity of complex structures in FPSO mooring mating structures.The simulation results showed that modular replacement effectively con-trols welding deformation and ensures the assembly accuracy of modular replacement of the rear bracket.The optimized solution minimizes welding deformation and ensures that the installation plane error is within a controllable range.The modular replace-ment solution is an effective way to solve the problem of welding cracks in the rear bracket and local structure of FPSO single point locking mechanism,providing reference for subsequent online or dry-dock repairs.
single point mooring locking mechanismmodular replacementweldingvirtual construction
万方数据
维普
