STEP-BASED MODELLING OF SHIP PRODUCT DEFINITION DATA

This paper describes the system architecture and the underlying concepts of a modelling system for ship steel structures. The system was designed to enhance the transfer of data from 'traditional' type CAD systems to analysis system like those used for Finite Element analysis. It uses a neutral representation of the product model (according to the upcoming ISO standard STEP) in its database and for external communication with other systems. The central element of the implementation is a mapping of the STEP EXPRESS data modelling language to the C and C++ programming languages. Due to the inherent high level of information abstraction in the product model it is possible to include new advanced functions in the system. The advantages of the STEP standard draft are discussed as well as the experience gained in applying it to topics of shipbuilding. Interfaces to existing systems such as the STEERBEAR HULL system have been implemented. They demonstrate how the tools for mapping EXPRESS to existing programming languages simplify the creation of the required complex interface and translator programs.

• Supplemental Notes:
  • IFIP TC5/WG 5.6; 7th Intl Conf on Computer Applications in the Automation of Shipyard Operation and Ship Design; 10-13 Sept 1991; Rio de Janeiro, Brazil. Procs. Pubs by Elsevier, The Netherlands, ISBN 0 444 8972 8 3. Session F, p 365 [12 p, 18 ref, 9 fig]
• Authors:
  • Koch, T
• Publication Date: 1991

Language

• English

Subject/Index Terms

• TRT Terms: Computer aided design; Naval architecture; Vehicle design
• Uncontrolled Terms: Ship design
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00705301
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM