Análisis de tensiones Von Mises en biodigestores anerobios de cúpula rígida
Fecha
2018
Autores
Martínez Hernández, Carlos Manuel
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Resumen
El trabajo realiza un analisis de tensiones Von Mises de los biodigestores de cúpula
rígida (tipo chino), los cuales son los más extendidos en las condiciones cubanas. Para lo anterior,
se procedió al empleo de un software profesional de diseño CAD.Basadas en técnicas de Diseño
Asistido por Computadoras (CAD), así como a la utilización de la simulación física a pequeña
escala en biodigestores plásticos y la toma de mediciones a escala real, se ejecutó esta
investigación. El objetivo del trabajo estuvo dirigido a comparar la correspondencia entre los
resultados obtenidos en la variable presión de biogás obtenido a escala de laboratorio y los valores
reportados por otros autores a escala piloto contra el modelo computarizado empleado. Mediante
el empleo del modelo computarizado se pudo determinar las secciones más peligrosas en los
diferentes elementos constructivos que conforman los biodigestores de esta tipología constructiva,
además de los límites de rigidez que pueden soportar este tipo de biodigestor, en dependencia de
sus dimensiones y el material de construcción utilizado. Como conclusiones se llegó a determinar
que las tensiones que provocan la presión interior de biogás generado en estos biodigestores de
cúpula rígida (tipo chino), no constituyen tensiones peligrosas que puedan afectar las estructuras
de las paredes, cúpula y cuello de este tipo de biodigestor.
The work shows an analysis of Von Mises tensions of biodigesters of rigid dome (Chinese type), which are the most extended under Cuba conditions. For the above-mentioned, a professional software of design CAD was used. These investigations were executed based on Attended Design for Computers (CAD) as well as on the use of the physical simulation to small scale in plastic biodigesters and taking mensurations to real scale. The objective of the work was to compare the correspondence between the results obtained in the variable pressure of biogas obtained to laboratory scale and the values reported by other authors to pilot scale against the pattern on-line used. By means of the on-line pattern, the most dangerous sections in the different constructive elements that conform the biodigesters of this constructive type could be determined. It was possible to determine that the tensions that cause the interior pressure of biogas generated in these biodigesters of rigid dome (Chinese type), do not constitute dangerous tensions affecting the structures of walls, dome and neck of this biodigestor type.
The work shows an analysis of Von Mises tensions of biodigesters of rigid dome (Chinese type), which are the most extended under Cuba conditions. For the above-mentioned, a professional software of design CAD was used. These investigations were executed based on Attended Design for Computers (CAD) as well as on the use of the physical simulation to small scale in plastic biodigesters and taking mensurations to real scale. The objective of the work was to compare the correspondence between the results obtained in the variable pressure of biogas obtained to laboratory scale and the values reported by other authors to pilot scale against the pattern on-line used. By means of the on-line pattern, the most dangerous sections in the different constructive elements that conform the biodigesters of this constructive type could be determined. It was possible to determine that the tensions that cause the interior pressure of biogas generated in these biodigesters of rigid dome (Chinese type), do not constitute dangerous tensions affecting the structures of walls, dome and neck of this biodigestor type.
Descripción
Palabras clave
Tensiones von Mises, Biodigestores, Simulación por Computación., Biodigesters, Computer Simulation.