Time- and cost efficient development processes in the automotive industry are often based on the application of modern IT-supported engineering tools. Computer aided three-dimensional design (3D-CAD) and calculation methods are widespread and well introduced in component development and digital mock-up processes. Especially the early phases are characterised by variant changes, alternating definitions, requirements and iterative actions, which are influenced by legislation boundaries and ergonomic tasks as well as styling requirements, crash and safety standards, customer demands and specific functionalities. An important factor for a successful development states an optimised interaction between the design process and simulation operations based on efficient computer aided methods and strategies. The realisation of parametric-associative model structures and interlinked geometry elements enables an enhancement of geometry representation, with additional functionalities related to design check features, digital mock-uprelevant information or calculations and logical functionalities. The separation of geometry elements and geometry-defining parameters supports the integration of interfaces into design-external processes, as well as the creation of macro-based automated routines directly embedded in the design software. Besides geometry creation, modern design processes include the definition of several additional product characteristics, such as functional layout, materials, process-relevant data (e.g. for production), product structure, and others. Thus, the geometry creation represents an important working area in automotive development. This present publication introduces an integrated centralised approach, which links the entire product development to the geometry data of a virtual product master model, and applies this approach to vehicle-related development processes. During the product definition, the geometry-based master model is able to represent the current state of development and to interact with all of the simultaneously performed processes. The use of parametric-controlled design enables an integration of (internal or external) problemsolving procedures into the design process, with the goal of supporting recurrent operations in the course of development and optimisation cycles. In the case of internal calculation procedures, the mathematical algorithms are embedded in the design software environment, which enables a direct access to the implemented functionalities. External solving algorithms use specific programs and/or simulation procedures for the computation of complex tasks. The transmission of parameter values required for the calculation is performed by bi-directional data transfer between the design software and the simulation programs. The present approach of an integrated master model enables a comprehensive product description based on object-oriented parameters, which are transferred into different attending processes. The extended consideration of numerous working fields in initial automotive development processes, in combination with a detailed parameterisation of a product model itself and its influencing boundary conditions, enables the application of knowledge-oriented methods for the step-by-step creation in automotive engineering, all within a virtual environment. The introduction of advanced parametric associative development methods opens up a wide range of possibilities for further improvement of the entire virtual product development process.


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    Titel :

    Integration of problem-oriented analysis methods into 3D-CAD processes in automotive development


    Weitere Titelangaben:

    Integration Problem-orientierter Analyseverfahren in 3D-CAD-Prozesse bei der Automobilentwicklung


    Beteiligte:
    Hirz, M. (Autor:in) / Harrich, A. (Autor:in) / Rossbacher, P. (Autor:in) / Mayr, J. (Autor:in) / Thum, K. (Autor:in)


    Erscheinungsdatum :

    2011


    Format / Umfang :

    12 Seiten, 2 Bilder, 8 Quellen


    Anmerkungen:

    (nicht paginiert)


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch