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The Method of Transferring Topology Optimization Results Directly to the CAD System Database

Łyduch Konrad, Łukaszyk Jacek, Nowak Michał

Advances in Science and Technology. Research Journal

2022

Vol. 16, no 1

243--252

The article presents a method of transferring topological optimization results directly to CAD system. The devel- oped method is based on sequential removal and addition of material, ignoring lesser fragments of the model. The input data includes coordinates of nodes imported from the model of finite element method optimized object. The algorithm is able to recognize geometry patterns during material addition and subtraction. Based on the results of the recognition process, individual 3D features are placed in CAD design tree (like „Feature Manager” design tree in Solidworks, used in the procedure described in the article below). Thus, the described algorithm allows for convenient and quick editing of transferred geometry of the optimized object directly in the CAD environment. The algorithm was tested on various examples of 2D and 3D models. The execution code of the presented method was written in Python programming language, and the macro for the CAD program was written in VB.NET. The proposed solution is independent of the optimizer used.

A conceptual framework for the graphic representation of a structural node based on the geometry of the tetrahedron

Rochman D., Vázquez S.

Journal Biuletyn of Polish Society for Geometry and Engineering Graphics

2012

Vol. 23

73--79

Taking into account the principle that the triangle is the only polygon that does not deform when a force is applied, we designed a structural node, based on the geometry of the tetrahedron, to generate through the resources and elements of descriptive geometry, spatial structures using CAD applications and rapid prototyping.

Z uwagi na fakt, że trójkąt jest jedynym wielokątem, który nie odkształca się, gdy działa siła, na bazie czworościanu zaprojektowano strukturę kolankową do generowania struktur przestrzennych używając metod geometrii wykreślnej, narzędzi CAD i szybkiego prototypowania.

Scanned cross-section as a base of geometry loaded structures creation

Kopecki H., Smykla A.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

2002

z. 58 [193]

145-154

The paper presents the computational approach to the process of creation of complex three-dimensional structures. The data which is used in the modeling is automatically received by the measuring unit and sent directly to the computer. The process of numerical treatment of measuring points' coordinates is shown. As an example of the above mentioned method, the construction of human thighbone head model is demonstrated. In finite the geometrical model of object, which can be used by PATRAN system is obtained.