James Troy: Engineering Swept Volumes

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    Engineering Swept Volumes


Creation Year:



    6 in x 6 in x 20 in



Artist Statement:

    Swept-volume solids are 30 models that represent the space objects occupy or sweep out while moving. We’ve been working with complex swept volumes at Boeing for several years and often produce models with visually interesting shapes. This display is a collection of some of those models.

    The purpose of this display is to show engineering-related swept volumes created by three different types of applications. The geometry for each model was generated by the voxel-based software we developed for use in design analysis, which is based on the methods discussed in the haptics interaction paper we presented at SIGGRAPH 99. The physical 30 models were printed on a Z Corp model 406 color 3D printer.

    The first model is a representation of human-figure reach analysis motion for a new aircraft seating design project. The motion was created by keyframing positions of a human model performing several tasks, including reaching under the seat. The tessellated model was generated by the swept-volume module of the Voxmap PointShell (VPS) software toolkit.

    The second model is of the extend/retract motion of the main landing gear of a large commercial aircraft. It is shown here without wheels for better visibility of internal linkages. The motion was created in CATIA and exported to our FlyThru visualization software for swept-volume model creation using VPS.

    The motion paths for the third model were created by manipulating objects in a physically based virtual environment using a haptics force-feedback device. The collection of swept volumes shows the extraction paths of hydraulic system components through an access port. Like the other two models, the tessellated solids were created by the swept-volume generation functions of the VPS toolkit.

Affiliation Where Artwork Was Created:

    The Boeing Company