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Study of Implementation Method Based on STEP Ship Structure Application Protocol (AP218)

Author: TanFei
Tutor: HanDuanFeng
School: Harbin Engineering University
Course: Design and manufacture of ships and marine structures
Keywords: TRIBON STEP AP218 Neutral file Preprocessor
CLC: U662.9
Type: Master's thesis
Year: 2010
Downloads: 41
Quote: 1
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Abstract


The content of this paper is based on the ship STEP agreement AP218 TRIBON of hull module data neutral file conversion. Shipbuilding industry at this stage to use a variety of software systems, the exchange of data between each other is very difficult, the traditional point-to-point data exchange and sharing mode application, there are a large number of technical defects in the actual production. The fundamental way to solve this problem is to develop a neutral file storage format independent of any CAX system, and difficult to overcome the defects, as a geometric model exchange standards IGES STEP development of standards came into being. The TRIBON system is one of the world's advanced shipbuilding software, the Tribon system development support STEP application protocol interface has broad application prospects. In this context, the STEP AP218 standard implementation methodology based on TRIBON system. The object of this paper is to Tribon system hull modules and in connection with the ship STEP AP218 to turn from the STEP standard, the structure of the ship Agreement AP218, Tribon system hull module data structure and data exchange forward algorithm several aspects discussed the final completion of the design of the STEP neutral file conversion preprocessor. First, the analysis of the STEP standard. Including: STEP standard methodology and structure, to achieve a the ship application protocol AP218 range of applications, the model structure. Determine the data exchange implementation: the implementation of the neutral text encoding of the file structure of the (physical). Completed the EXPRESS model information modeling. Lay a solid theoretical foundation for the follow-up study of the STEP standard. Secondly, according to the expression of the STEP neutral file to extract parts of system-TRIBON hull module information. Analysis based on secondary development of a variety of TRIBON system COM-Object method as this pre-data extraction method used by the interface. Again, for hull of the TRIBON system module data structures and STEP neutral file data structure design data conversion forward algorithm. Forward algorithm implementation is an important module of the preprocessor program. Finally, the design of the STEP neutral file conversion the preprocessor to complete a practical project a to piecewise flat panel rack system the STEP neutral file conversion, ST-Developer in STEP neutral file into the generated 3D model visualization and analysis of the quality of the data exchange.

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CLC: > Transportation > Waterway transport > Marine Engineering > Ship design > The application of computer
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