Optimal remodelling of truss structures (simulation by virtual distortions)

Przemysław Kołakowski; Jan Holnicki-Szulc

Przemysław Kołakowski Institute of Fundamental Technological Research Polish Academy of Sciences
Jan Holnicki-Szulc Institute of Fundamental Technological Research Polish Academy of Sciences

Abstract

Optimal remodelling for least-weight trusses under single as well as multi-load state and limits imposed on local strains is considered. The so called Virtual Distortion Method is applied to simulate proces of structural remodelling through fictitious "virtual distortions" . In effect, applying knowledge of strains induced by virtual distortions modelling material redistribution, analytical formulas for sensitivity analysis and remodelling simulation process can be obtained. Various algorithms for the VDM-based structural remodelling have been proposed and tested on examples of elastic and elasto-plastic trusses.

Keywords

References

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