Systems and Methods of Designing Airbag
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United States of America Patent
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Issued Date -
Jun 27, 2013
app pub date -
Dec 21, 2011
filing date -
Dec 21, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Systems and methods for numerically creating corresponding 2-D mesh models for a plurality of airbag fabric panels from a 3-D computerized model of a fully-inflated airbag are disclosed. 3-D computerized model comprises a plurality of nodes and a plurality of shell finite elements. Each shell element is categorized as to which one of a plurality of fabric panels that form the airbag it belongs. Each fabric panel occupies a continuous surface area of the airbag. Shell finite elements of a particular fabric panel are unfolded to a 2-D mesh one fabric panel at a time. The total surface area of a particular fabric panel is compared with the total area of the corresponding 2-D model. Adjust the 2-D mesh model until the areas are within a predetermined tolerance. The final “total-area-matched” 2-D mesh model is further orientated to a fabric material coordinate system of warp and weft for determining manufacturability.
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