The Olkiluoto site at Eurajoki serves as an example case. The ROCK- CAD system has been utilized in modelling spatial distribution of rock types and fracturing structures in TVO's site characterization. The specially developed features are the application of the boundary representation modelling method, parametric object generation language and the discipline approach.
The ROCK- CAD system provides, among other things, varying graphical vertical and horizontal intersections and perspective illustrations. It comprises also rich functionality for the particular geological modelling scheme. The system is based on the solid modelling technique. It has been utilized in the Finnish site characterization programme for spent nuclear fuel waste disposal during the 1980s and 1990s.
#NETS NOT ATTACHED TO PARTS PCAD 2006 SOFTWARE#
Application software named ROCK- CAD suitable for geological bedrock modelling has been developed with support from Teollisuuden Voima Oy (TVO). The study discusses surface and solid modelling methods, their use and interfacing with geodata. International Nuclear Information System (INIS) ROCK- CAD - computer aided geological modelling system The proposed research addresses actual needs and presents a new way to acquire CAD models in the mechanical conceptual design phase. A case demonstrates that FSMARS can successfully botain multiple potential CAD models that conform to the desired function. Finally, a prototype system, called Functional Semantic-based CAD Model Annotation and Retrieval System(FSMARS), is implemented. Thirdly, a CAD model retrieval algorithm that supports multi-function extended retrieval is proposed to explore more potential creative design knowledge in the semantic level. On the basis of AAG, the functional semantics of CAD models are annotated semi-automatically by matching CAD models that contain the partial features of which functional semantics have been annotated manually, thereby constructing CAD Model Repository that supports model retrieval based on functional semantics. In this method, the geometry and topology data are extracted from STEP models. Secondly, an approach to represent CAD models as attributed adjacency graphs(AAG) is proposed. Firstly, the CAD model functional semantic ontology is constructed to formally represent the functional semantics of CAD models and describe the mechanical conceptual design space comprehensively and consistently. Therefore, a functional semantic-based CAD model annotation and retrieval method is proposed to support mechanical conceptual design and design reuse, inspire designer creativity through existing CAD models, shorten design cycle, and reduce costs. However, relevant research is still not fully discussed. Annotation and retrieval system of CAD models based on functional semanticsĬAD model retrieval based on functional semantics is more significant than content-based 3D model retrieval during the mechanical conceptual design phase.
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