A graph-based methodology for hybrid rapid design

Abstract

Currently, the complexity of new products and the number of their functions are increasing considerably. In the process of development, prototypes are used more and more for testing every function. These prototypes, like development time table of the product, are subject to constraints of time, cost, and reactivity.

In answer to these constraints, a method is proposed, based on a multicomponent prototype (MCP) approach, called hybrid rapid prototype (HRP). The part is decomposed into several components. Each MCP can be manufactured using a more adaptable process. Moreover, during testing of the various solutions, only one or two components would have to be remanufactured separately. This method is also used for tooling, in small series of products with alternatives.

The main weakness of previous HRP studies is that only build accessibility has been considered. The evolutionarity, the choice of an appropriate process, and the assembly design of different components have not been taken into account.

The main objective of the developed analysis is to propose an available technological assembly between the different components of MCP. The protocol used for the data is STEP AP-224. A list of standard assemblies (notably assembly identity card)-(CIA) is defined. Via fuzzy logic, some entities are associated with a CIA according to evolutionary and manufacturing analysis.

Keywords

hybrid rapid tooling multicomponent prototype hybrid manufacturing evolutionary prototype STEP

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