構造物の安定性に関する知識整理と安定判断システム

抄録

This paper reports on an elementary approach to AI (Artificial Inteligence) in structual en- gineering from the following view points ; (1) knowledge acquisition on stability of plane truss structures, (2) a knowledge-based expert system to judge the structual stability. Structural engineers can recognize, as a visual image, truss structures as a chain of members and connected nodes. Therefore, in this paper, the representation of structual information can be considered as a concept of network. The knowledge representation is based on production rules. Reasoning stable structures in this system is interpreted as searching a network judging from knowledge bases. In this system, unstable modes are also analyzed by numerical method, and can be displayed on CRT. This system is implemented on a personal computer running under a MS-DOS operating system. The programing language for judgement is Prolog, which has a powerful pattern matching capability. The ptograming language for numerical analysis is Fortran.