Advertisement

Journal of Marine Science and Technology

, Volume 1, Issue 3, pp 138–148 | Cite as

Development of a hull form definition tool with a related knowledge-based advisory system

  • Glenn D. Aguilar
  • Hiroyuki Yamamoto
  • Takeo Koyama
Original articles
  • 55 Downloads

Abstract

The development of a parametric hull form design system utilizing combined knowledge-based and objectoriented methodologies, approaches, and techniques is the major purpose of this research. One objective was the development of a powerful, intuitive, and parameter-based hull definition system with a related hull definition advisory system that would provide useful and necessary advice to the user. Object and knowledge modeling activities were conducted during the analysis and design stage to facilitate the implementation of a hull design program and advisory system. The hull design system includes the generation of a geometric model from a process of aggregating simple user-selected shapes representing different boundaries. Design involves the capability to vary simple parameters such as entrance angles, length-breadth ratios, and radii to define local and general surface geometries. Hydrostatic calculations are included for analysis; results are referred to an advisory system for evaluation and the determination of the acceptability of parameters and analysis results. The advisory system includes a knowledge bases consisting of hull form databases, results of the statistical analysis of data, design parameter constraints, and expert knowledge acquired from designers, reference materials, and technical reports. Use of the design tool with the advisory system results in the rapid generation of hull forms and associated design evaluations. Flexibility in decision making results from the separation of the design system from the advisory system. The independence of the two systems allows for a wide range of user experience with experts using the design tool with minimal reference to the advisory system. On the other hand, the expertise and knowledge stored in the advisory system is fully available to inexperienced designers and users.

Key words

hull form design knowledge-based system knowledge modeling 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Aguilar GD, Koyama T, Yamato H (1993) An approach to knowledge acquisition for hull form design: First report: generic database for hull form representation. Proceedings of Spring Meeting of the Japan Society of Naval Architects. Tokyo, pp 173:401–407Google Scholar
  2. 2.
    Aguilar GD (1995) A knowledge-based system for the preliminary design of hull forms. PhD dissertation, University of TokyoGoogle Scholar
  3. 3.
    Calisal SM, McGreer D (1991) An expert system for fishing vessel design. Proceedings of the 4th International Marine Systems Design Conference, Kobe, May 26–30, 1991Google Scholar
  4. 4.
    Stearns HP, Payne G, Smith (1991) Designing a knowledge-based ship design system. Proceedings of the 4th International Marine Systems Design Conference, Kobe, May 26–30, 1991Google Scholar
  5. 5.
    Welsh M, Buxton IL, Hills W (1990) The application of an expert system to ship concept design investigations. Trans RINA 133:123–132Google Scholar
  6. 6.
    Tansley DSW, Hayball CC (1993) Knowledge-based systems analysis and design: A KADS developer's handbook. Prentice Hall, London, pp 1–10Google Scholar
  7. 7.
    Wielinga BJ, Schreiber ATh, Breuker JA (1992) KADS: A modelling approach to knowledge engineering. Know Acq 4:5–53CrossRefGoogle Scholar
  8. 8.
    Schreiber AT, Wielinga BJ, Breuker JA (eds) (1992) KADS: A principled approach to knowledge-based system development. Academic LondonGoogle Scholar
  9. 9.
    Duursma C (1993) Task model definition and task analysis process. KADS-II/M5/VUB/RR/004/1.1c, VUB AI Laboratory Free University Of BrusselsGoogle Scholar
  10. 10.
    Breuker J, Wielinga B, Van Someren M et al (1987) Model drive knowledge acquisition: interpretation models, ESPRIT P1098, Deliverable D1 (Task A1), University of Amsterdam & STL LtdGoogle Scholar
  11. 11.
    TGS Systems (1991) Prograph CPX Manual, Picforius, Halifax, pp 1–105Google Scholar
  12. 12.
    Aguilar GD, Koyama T, Yamato H (1993) An approach to knowledge acquisition for the hull form design of fishing crafts, 2nd Report: Object-oriented methodology for the rapid development of procedural tools and interactive elicitation for hull selection. Proceedings of Spring Meeting of the Japan Society of Naval Architects. Tokyo, pp 174:755–765Google Scholar
  13. 13.
    Olof Traung J (ed) (1967) Fishing boats of the world. Fishing News Books. London.Google Scholar

Copyright information

© SNAJ 1996

Authors and Affiliations

  • Glenn D. Aguilar
    • 1
  • Hiroyuki Yamamoto
    • 2
  • Takeo Koyama
    • 2
  1. 1.Research into Artifacts, Center for EngineeringUniversity of TokyoTokyoJapan
  2. 2.Department of Naval Architecture and Ocean EngineeringUniversity of TokyoTokyoJapan

Personalised recommendations