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doi:10.1016/S0954-1810(99)00002-3 
Copyright © 1999 Elsevier Science Ltd. All rights reserved.
Graph theory representations of engineering systems and their embedded knowledge
Received 10 July 1998;
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Abstract
The discrete mathematical representations of graph theory, augmented by theorems of matroid theory, were found to have elements and structures isomorphic with those of many different engineering systems. The properties of the mathematical elements of those graphs and the relations between them are then equivalent to knowledge about the engineering system, and are hence termed “embedded knowledge”. The use of this embedded knowledge is illustrated by several examples: a structural truss, a gear wheel system, a mass-spring-dashpot system and a mechanism. Using various graph representations and the theorems and algorithms embedded within them, provides a fruitful source of representations which can form a basis upon which to extend formal theories of reformulation.
Author Keywords: Graph theory; Embedded knowledge; Isomorphic structures; Knowledge representation
Article Outline
- 1. Introduction
- 2. Representations
- 3. Graphs as representation of engineering systems
- 4. Checking the validity and analysis of a truss
- 5. Checking the validity, and analysis of, a planetary gear system
- 5.1. The representation of the planetary system
- 5.2. Checking the validity of the planetary gear system
- 5.3. Analysis of the velocities in the planetary systems
- 6. Application to other engineering systems
- 7. Reasoning by analogy based on the embedded knowledge
- 8. Concluding remarks
- Acknowledgements
- References
