Publication: Análisis mediante MEF del diseño mecánico del prototipo de un seguidor solar
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2017-09
Defense date
2017-09-27
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Abstract
El presente proyecto realiza el análisis mediante elementos finitos del diseño mecánico de un prototipo de seguidor solar, encaminado a la integración en la edificación como fuente de energía eléctrica alternativa y renovable, utilizando la tecnología de centrales termosolares a escala reducida.
El diseño mecánico se obtuvo en formato CAD, realizado mediante el programa FreeCAD, de licencia libre. El análisis por elementos finitos se lleva a cabo mediante el programa ANSYS con su licencia limitada para estudiantes.
La finalidad del análisis es determinar el comportamiento de la estructura ante cargas exteriores de carácter meteorológico, centrándose dicho estudio en las cargas de viento, determinándose dichas cargas en base a la norma en vigor sobre las construcciones en la edificación.
Se realiza un análisis previo de la estructura para subdividirla en partes y hacer abordable dicho estudio con los recursos disponibles, estableciendo las conexiones entre las diversas partes aplicando criterios de la mecánica de estructuras.
A continuación, se lleva a cabo la creación e implementación en ANSYS de los modelos de las distintas partes, adecuando las geometrías de los CADs originales al entorno de ANSYS, realizando los mallados oportunos en cada caso, e introduciendo las cargas determinadas anteriormente.
Por último, se resuelven los modelos y se realiza un análisis de los resultados, valorando estos y determinando las conclusiones adecuadas en cada caso.
This project performs the analysis by finite elements of the mechanic prototype solar tracker, aimed towards integration into the building as a source of alternative and renewable electricity, using low-scale solar thermal power plants technology. The mechanical design was obtained in CAD format, made using the free license program FreeCAD. The finite elements analysis is carried out using the ANSYS program with its limited license for students. The purpose of the analysis is to determine the behavior of the structure against external loads of meteorological character, focusing on the wind loads, these loads being determined based on the current norm on the constructions in the building. A preliminary analysis of the structure is made to subdivide it into parts and make the study possible with the available resources, establishing the connections between the different parts applying criteria of structural mechanics. Then, the creation an implementation in ANSYS of the models of the different parts is carried out, adapting the geometries of the original CADs to the ANSYS environment, making the appropriate mesh in each case, and introducing the loads previously determined. Finally, the models are solved and an analysis of the results is performed, evaluating these and determining the suitable conclusions in each case.
This project performs the analysis by finite elements of the mechanic prototype solar tracker, aimed towards integration into the building as a source of alternative and renewable electricity, using low-scale solar thermal power plants technology. The mechanical design was obtained in CAD format, made using the free license program FreeCAD. The finite elements analysis is carried out using the ANSYS program with its limited license for students. The purpose of the analysis is to determine the behavior of the structure against external loads of meteorological character, focusing on the wind loads, these loads being determined based on the current norm on the constructions in the building. A preliminary analysis of the structure is made to subdivide it into parts and make the study possible with the available resources, establishing the connections between the different parts applying criteria of structural mechanics. Then, the creation an implementation in ANSYS of the models of the different parts is carried out, adapting the geometries of the original CADs to the ANSYS environment, making the appropriate mesh in each case, and introducing the loads previously determined. Finally, the models are solved and an analysis of the results is performed, evaluating these and determining the suitable conclusions in each case.
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Análisis numérico, Matemáticas computacionales, Mecánica de sólidos, Energía solar, Seguidor solar