Study on 4D Information System for NPP Overhaul Based on 3D Models

Overhaul is an important part in the operation and maintenance of nuclear power plants.As a huge and complicated asset intensive enterprise,the nuclear power plant requires high standards of safety with consideration of irradiation effects,which makes the overhaul management even harder.Studying the features,difficulties and tackling issues of the nuclear power plant overhaul,this paper discusses the necessities,the setting-up and application of 4D information system with detailed examples of domestic application cases and effects.As partial application of PLM system,the 4D information system could provide standard,visual and modular services for overhaul management.