| Project/Area Number |
02555093
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
船舶抵抗・運動性能・計画
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| Research Institution | University of Tokyo |
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Principal Investigator |
KOYAMA Takeo University of Tokyo, Faculty of Engineering, Professor, 工学部, 教授 (10010696)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Iwao University of Tokyo, Faculty of Engineering, Research Assistant, 工学部, 助手 (70010890)
YAMATO Hiroyuki University of Tokyo, Faculty of Engineering, Associate Professor, 工学部, 助教授 (50220421)
NOMOTO Toshiharu University of Tokyo, Faculty of Engineering, Professor, 工学部, 教授 (80011170)
宮田 秀明 東京大学, 工学部, 助教授 (70111474)
梶谷 尚 東京大学, 工学部, 教授 (80010693)
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| Project Period (FY) |
1990 – 1991
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| Project Status |
Completed (Fiscal Year 1991)
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| Budget Amount *help |
¥13,400,000 (Direct Cost: ¥13,400,000)
Fiscal Year 1991: ¥5,500,000 (Direct Cost: ¥5,500,000)
Fiscal Year 1990: ¥7,900,000 (Direct Cost: ¥7,900,000)
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| Keywords | Process Planning / CAD / CAM / CIM / Ship Design / Ship Structure / Expert System / Product Modelling / 構造モデリング / 船体設計 / Relationship Model / オブジェクト指向 / Smalltalkー80 |
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| Research Abstract |
The research on the process planning systems for the non-mass production products had been conducted from the 2nd to 3rd fiscal year or Heisei.
The central interest of the study was to develop the process Planning expert system for the ship building. The key technology for the system development were data base structure and the production methodology in the production system.
As for the data base, the Entity and Relationship model was used, to represent the parts and connections between parts respectively. The structure and the substructures can be represented by the Entity and Relationship very clearly : and the process iras expressed in terms of the series of the Relationship.
As for the production method. the Role and Floor method was used' The Role distinguishes the position or parts very concisely such as horizontal or Yertical flat plate or stiffeners. The Floor represents the number of the Floor to which the parts belongs. The rules are expressed in terms of if. ., then. . . ' using the Role and Floor.
The prototype process planning expert system was made on the Smalltalk-80 environment and applied to the simplified midship structure of the double hull ship. The system Tas, proven to provide an appropriate process planning as a result.
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