Abstract: Computer aided design (CAD) mainly focuses on drawing function for engineers in this time and hasn't enough field knowledge to improve design efficiency. A new concept of knowledge-based engineering (KBE) is presented. Its key technologies (knowledge representation, reasoning and acquirement), such as frame-rule representation and reasoning, case-based reasoning and neural network reasoning, are studied. This system structure has two advantages: ① Multi-methods of knowledge representation are integrated and can express knowledge of many fields. ② Knowledge acquirement is introduced into engineering design system and improves its learning ability and adaptability. Integrated with this system, general CAD systems can be improved into computer-aided design from computer-aided drawing. Having researched the process of designing mold base, a knowledge-based system is developed for mold base design who can apparently improve design efficiency in practice.
Key words:
Knowledge-based engineering Knowledge representation Knowledge acquirement Mold base design
* Selected from Proceedings of 2000 the First
International Conference on Mechanical Engineering. revised
manuscript October 18, 2001
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