Shape Optimization of Assembled Single-Layer Grid Structure with Semi-Rigid Joints
| Autor: | Ruoqiang Feng, Konstantinos Daniel Tsavdaridis, Fengcheng Liu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
business.industry Computer science 02 engineering and technology Structural engineering Grid Industrial and Manufacturing Engineering Finite element method 020303 mechanical engineering & transports 020901 industrial engineering & automation TA 0203 mechanical engineering Buckling Artificial Intelligence Spring (device) Joint stiffness Genetic algorithm medicine Shape optimization medicine.symptom business MATLAB computer ComputingMethodologies_COMPUTERGRAPHICS computer.programming_language |
| Zdroj: | Procedia Manufacturing |
| ISSN: | 2351-9789 |
| DOI: | 10.1016/j.promfg.2020.02.199 |
| Popis: | This paper takes the effect of the semi-rigid joints into account to optimise the assembled free-form single-layer grid structure. Based on the experimental results of the semi-rigid joints, finite element models of single-layer grid structure with semi-rigid joints are established, and virtual spring elements are used to simulate the joint stiffness. The optimisation process is completed with the parallel collaboration of ANSYS and MATLAB data. The research goal is to minimise the total strain energy. Genetic algorithm is used for the optimisation, and the nodal z-coordinates are chosen as variables. The effect of the semi-rigid joints on the shape optimisation is studied by changing the joint stiffness. With this method, the optimal shapes of assembled grid structure with different joint stiffness and improved buckling load are obtained. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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