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Erschienen in:
2009 | OriginalPaper | Buchkapitel
A New Methodology for Designing Minimum-Weight Dual-Material Truss Structures with Curved Support Boundaries
verfasst von : Peter Dewhurst, Ning Fang, Sriruk Srithongchai
Erschienen in: Computational Structural Engineering
Verlag: Springer Netherlands
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The design of light-weight structures is a subject of central importance in the development of numerous civil and mechanical engineering products, such as bridges, roofs, and aerospace constructions. Based on matrix operators, a new methodology is established in the present study to design minimum-weight dual-material truss layout structures with curved support boundaries that represent broader engineering applications. To validate the new methodology, logarithmic spirals on a circular support boundary are investigated to determine the radii of curvature along the boundary points. A torsion structure case study is explored to compare deflections with calculated results obtained from the optimality criteria. The solutions are very close to theoretical values.