Integrating the Parametric Models

Integrated 3D-Model

The 3D model that can be seen below shows the integration of the three individual models. The house is set on the end of the bridge as the destination to which the bridge leads, while the transverse girders of the bridge were replaced by the composite girder:

Selected Scenario:

For the integration of the parametric models a scenario was created, where parameters of the individual models influence each other as well as the environment influences the overall combined model.

The house is considered to be the destination of the bridge. Therefore,

  • the bridge’s end point defines the point, where the house is built.

In the other way, the size of the house defines the dimensioning of the bridge. If the house is designed as a hotel with 100 rooms, the bridge has to be able to carry the traffic that is generated by it and that goes over the bridge. For example, in addition to cars, there will also be buses and trucks. If the house is designed as a cottage for hikers, the bridge can be smaller, since it only has to carry pedestrians and bicyclists.

If the capacity of the house is abstracted as its expansion in x-direction. This correlation is defined in the following way:

  • the house’s expansion in x defines the bridge’s width.

The composite girder is considered to be a structural component of the bridge. Specifically, the bridge’s transverse girders are replaced by the composite girders. Therefore,

  • the bridge’s width defines the composite girder’s length.

In conclusion, one could also say that indirectly:

  • the house’s capacity defines the composite girder’s lenghts

but also

  • the composite girder’s maximal length limits the house’s capacity.

To connect these constraints to an environmental model one environmental parameter was introduced, describing the required span. It can be considered as an imaginary obstacle like a river or a roadway, which needs to be crossed. This additional constraint was added to the overall system of systems:

  • the required span defines the bridge’s length, which in turn defines the house’s location.

The hierachical model can be seen in the picture below:

hierachical-model

Environmental parametric model: group3_3rd_environment

Bridge parametric model: group3_3rd_bridge

Composite Girder parametric model: group3_3rd_compositegirder

House parametric model:  group3_3rd_house

In the previous step a combined ontology was developed.