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Download - Autosim Autosim

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THE AUTOSIM PROJECT<br />

Fig. 4.5.2.1: Simulation Data and Process Management (courtesy of MSC<br />

Software)<br />

Fig.4.5.2.1 shows a sample process map of a generic crash simulation<br />

process with both simulation data objects (green circles) and simulation<br />

process actions (blue boxes). SDM should manage the simulation data, and<br />

also offer the possibility of managing the simulation processes. This is<br />

particularly important for increasing confidence in simulation data, as it<br />

makes simulation processes repeatable and, thus, results easier to<br />

compare. It should be noted that, especially in early design phases,<br />

appropriate CAD data may not be available yet. For this reason any SDM<br />

system must be flexible enough that input data for building simulation<br />

models can come from different sources, not necessarily from PDM<br />

systems only, but of course desired in the future.<br />

To enable a total procedure to become faster, an integrated software<br />

environment is needed. For example, the physical layout needs to be done<br />

rapidly either using CAE or (semi-)analytically or with symbolic CAE when<br />

only some basic data is available (Fig.4.5.2.2).<br />

Very often in a typical new vehicle, in order to encourage design work using<br />

CAE during early development phases, parametric vehicle-concept models<br />

are desirable because they allow conceptual, geometric modifications to be<br />

evaluated rapidly at a time when no CAD data is yet available. Such tools<br />

should allow concept modification cycles (i.e. variation of parametric vehicle<br />

concepts) on data available either from predecessor models or from scratch<br />

(Fig 4.5.2.2).<br />

SIXTH FRAMEWORK PROGRAMME PRIORITY [6.2] [SUSTAINABLE SURFACE TRANSPORT]<br />

012497 AUTOSIM<br />

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