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Functional Representation: Creating a Framework for Design Support

Fredrik Andersson (Institutionen för maskin- och fordonskonstruktion)
8th ISPE International Conference on Concurrent Engineering: Research and Application (2001)
[Konferensbidrag, refereegranskat]

This paper discuss functional representation in general, such as classification of concepts, benefits etc., and functional modelling both static, and dynamic characteristics in particular. It will show how functions takes a product view on design intent; whether being an active function referring to the action of the product (dynamic), passive functions referring to the realisation of the product (static ? non-transforming) or esteem/interactive functions (Akiyama, 1991; Warell 1999) referring to functions intended to give sensory satisfaction to product users. The concept of purpose is introduced to clarify the reason for the product; purpose being the design intention from a socio-technical view (Rosenman et. al., 1998), or from a relational view, such as manufacturing, assembly, service etc. This paper shows how the intended behaviour is linked from purpose, function and physical perspective, using state-transition diagrams to capture the external state transitions (effect attributes) and function structures to capture the internal state transitions (structural attributes), where each function structure represent a transition between external states. This approach simplifies the way of representing complex systems in a functional manner by separating the internal and external representation of state attributes.



Denna post skapades 2006-09-19.
CPL Pubid: 9744

 

Institutioner (Chalmers)

Institutionen för maskin- och fordonskonstruktion (1900-2003)

Ämnesområden

Teknisk mekanik

Chalmers infrastruktur

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Functional Representation for Design Support: A Design Theory Perspective