Abstract
SUMMARY By expanding some concepts behind the Edinburgh Designer System (EDS), the paper proposes a function-behaviour-structure-based representation scheme for mechanical systems and assemblies (MSAs) that possibly supports both conceptual design and design for manufacturing. A machine structure might be viewed as being composed of two basic elements: components and connectors. Components are concrete elements such as a step shaft or a gear. Connectors are abstract elements corresponding to fastening, joining, constraint, or other functions and behaviours which are placed between two components. At the different design stages, a connector could be a form feature, a physical component or even a sub-assembly. Functional and behavioural descriptions are embedded in the structural model as predicate logic. This ‘integrated design object model’ provides an insight into machine design. One of the applications of such a representation is to offer designers on-line help for evaluating product assemblability by a...
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