engleski

Inexact Iterated FDM for cable-nets

Inexact Iterated FDM is an extension of the force density algorithm, originally used for form finding and internal force evaluation of tensile structures. The method is an improved version of an iterative algorithm operating on the force densities in order to attain target lengths and forces of cable-net bars. Improvements are aimed to be made in two segments. First, acceleration of the computation by relaxing the accuracy of the procedure in each iteration step maintaining it high enough not to compromise the convergence. Second, greater flexibility by introducing unstrained length constraint in addition to force and length constraints from initial set up of the algorithm. Set of constraints allows user to manually influence the appearance of the final solution and enables further integration of the method into the interactive environment for form finding. The proposed algorithm is adjusted to COMPAS framework for “computational research and collaboration in architecture, structures and digital fabrication” and can be used in Rhinoceros.

cable-net structures ; form finding ; force density method ; iterative method ; unstrained length

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