Abstract
Abstract The new paradigms of parametric modelling have been proving promising on the advance of systems for analysis and design of taut (or tensile) structures. With this premise, the presented work consist on the development with a form-finding tool for Computer Aided Design(CAE) and Computer Aided Engineering (CAE) integration using VPL (Visual Programming Language), in the context of parametric modelling. The methods used in the implementation are the Force Density Method (FDM) and the Natural Force Density Method (NFDM), taking advantage of the linear solution approach provided, suitable for fast form-finding computational procedures. The program is implemented as a Grasshopper plug-in and it is named BATS (Basic Analysis of Taut Structures), which enables parametric definition of boundary conditions for the form-finding. The program structure and benchmarks with other available Grasshopper plug-ins for taut structures form-finding are presented, showing considerably superior performance using BATS.
Highlights
The new paradigms of parametric modelling have been proving promising on the advance of systems for analysis and design of taut structures
The presented work consist on the development with a form-finding tool for Computer Aided Design(CAE) and Computer Aided Engineering (CAE) integration using visual programming language (VPL) (Visual Programming Language), in the context of parametric modelling
The methods used in the implementation are the Force Density Method (FDM) and the Natural Force Density Method (NFDM), taking advantage of the linear solution approach provided, suitable for fast form-finding computational procedures
Summary
Abstract: The new paradigms of parametric modelling have been proving promising on the advance of systems for analysis and design of taut (or tensile) structures. Specially when the use of a parametric workflow is featured, as the user can quickly search for shapes, for instance changing the initial stress and observing the final shape in real-time.A comparison between different methods on Ix-Cube 4.0 software, which has the NFDM implemented, was performed by [6] showing faster and more accurate results provided by NFDM It is not studied in detail in this paper, the FDM and NFDM can be applied for the form-finding of compression and mixed tension and compression structures (see [7]). BATS is compared to SATS (System for Analysis of Taut Structures, the first implementation of NFDM in MATLAB) [11], and Kangaroo solver [12], which is a multiphysics simulation Grasshopper add-on that uses pseudodynamic methods for many shape finding procedures, including minimal surfaces, with good computational performance
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