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Metamodel simulation for designing monopole telecommunication antenna support structures
Simulación del metamodelo para el diseño de estructuras soporte de antenas de telecomunicaciones tipo monopolo
DOI:
https://doi.org/10.15446/dyna.v90n225.103922Palabras clave:
monopole structure; metamodel; flange connection; section inertia; direct matrix (en)estructura de monopolo; metamodelo; conexión de brida; inercia de la sección; matriz directa (es)
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Finite element analysis is used to estimate the displacements and forces present in each element of a structure. This type of analysis is time consuming in pre-processing, processing, and post-processing. It also incurs considerable computational costs. A simplified methodology is therefore required to reduce design time considerably. The research involved the development and application of an experimental methodology and a simulation, using Ansys Research software’s LS-DYNA module, in which loads are applied in accordance with the ANSI/TIA 222-G standard used in the telecommunications industry. The matrix method was applied, obtaining results for nodal displacement that were compared with the results of physical tests and a metamodel, showing a variation range of 8.44%. In addition, it was shown that a metamodel can be used during the pre-design stage, significantly reducing the time required for analysis.
El análisis por el método de los elementos finitos se utiliza para estimar los desplazamientos y fuerzas presentes en cada elemento de una estructura. Este tipo de análisis requiere mucho tiempo de preprocesado, procesado y postprocesado, implicando además un gasto computacional considerable. Siendo necesaria una metodología simplificada que reduzca considerablemente el tiempo de diseño. La investigación se desarrolló aplicando una metodología experimental y simulación en el módulo LS-DYNA del software Ansys Research, donde las cargas son aplicadas de acuerdo a la norma ANSI/TIA 222-G utilizada en la industria de las telecomunicaciones. Se aplicó el método matricial, obteniendo los resultados de desplazamientos nodales que fueron comparados con los resultados de la prueba física y los resultados del metamodelo, mostrando un rango de variación de 8.44%, además el metamodelo puede ser utilizado en la etapa de prediseño, reduciendo significativamente el tiempo de análisis.
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