An integrated approach for the design of multi-product assembly systems

A Structural Framework for Assembly Modeling and Recognition

“…Model acquisition usually takes an expert who has to edit the necessary information. Furthermore, except for a contribution by Stadzisz and Henrioud [121], which we will discuss later, no ideas how to generalize structural assembly models were reported. Thus, assembly recognition based on structural models would imply considerable modeling effort, if more than just a few assemblies should be recognized.…”

“…Stadzisz and Henrioud [121] gather liaison graphs of a family of products and derive web grammars. They claim their approach to be generic and present an exemplary grammar which describes different products.…”

“…They were used for workpiece or machine tool design [19,95] or for modeling in assembly sequence planning [121]. But syntax-based contributions to reasoning in assembly make use of rather complex formalisms like shape or graph grammars and simple grammatical approaches were not yet reported.…”

“…Stadzisz and Henrioud [121] point out that liaison graphs are similar for whole families of products. They introduce graph grammars to generate liaison graphs automatically and use Petri nets to represent generic assembly plans.…”

An ontology for the definition and validation of assembly processes for evolvable assembly systems

“…This has been reinforced with work by Stadzisz and Henrioud [6] and Vos [7]. Vos has used a set of classes to structure assembly processes this is at a higher level of abstraction.…”