A Study on the Design System Based on the Ship Database

概要

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The database of the ship constructed in the past has already been generated in the particular shipyard. However, the application of the database to the design of the new ship is still very difficult since the methodology to extract and to use the knowledge from the database has not been concluded.This paper proposes the methodology to use the database for the design of the new ship based on the multivariate analysis. The database containing more than three hundred ships were established in this paper. First, the category and its related parameters were defined by the user. For example, the category "Hull Form" was treated using the parameters Cb, L/B, L/d, B/D, D/d and so forth. The whole database was partitioned into clusters and relationship between parameters were established in each cluster. Parameters were determined by the formula obtained here. As some parameters were fixed previously, one must make sure that the set of parameters was in the same cluster. If the ship was assured in the same cluster, one can go into the next category such as "Principal Particulars" and so forth. The process was applied repeatedly to give the final set of design parameters.The prototype system was built on the Macintosh Quadra 700 computer. Designs of a high speed liner and a car ferry by this system showed good accordance with existing ships.
社団法人日本船舶海洋工学会の論文