Original Date: 02/10/2003
Revision Date: 01/18/2007
Best Practice : Three-dimensional Pipe Modeling and Integration
Three-dimensional modeling of piping and its integration into boat systems construction have proven to be accurate and cost effective tools for Bender Shipbuilding and Repair Company, Inc.
Bender Shipbuilding and Repair Company, Inc. found that three-dimensional modeling of piping and its integration into ship systems produces the same advantages as three-dimensional modeling of wiring, equipment, machinery, foundations, and structural members. It is an effective tool that produces accurate and reliable spatial arrangement information.
Bender’s prior process of using two-dimensional drawings to define arrangement information had significant limitations. Without a substantial amount of ship inspection to validate information, prefabricating of piping assemblies was risky. In some instances, particularly for small piping, no attempt was made to arrange the piping in advance. Pipe fitting in the field was the normal, yet costly, approach.
Three-dimensional modeling of piping produces accurate arrangement information through production drawings reduced from the model. The model contains features in three-dimension where the relationship to other parts can be seen. Clicking on the material in the view can pull up its pedigree and any links to other technical or logistics information. This stored information can be easily reduced to produce spool drawings containing any necessary information for procurement, assembly, test, and installation. During the proposal stage, models may also be used in preparing diagrams, identifying materials, and preparing preliminary cost estimates.
Three-dimensional modeling is a powerful tool with great flexibility. Compared to previous practices, full utilization of the three-dimensional model capabilities saves time by: Avoiding costs associated with inaccurate, incomplete, unreliable, and inaccessible information
Preparing production drawings, bills of material, proposal documentation, and creation of documentation for follow-on boats
Coordinating division of responsibilities for ventilation systems
Determining stability (weight and moment analysis)
Evaluating concerns and proposed design changes before creating production drawings
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