Método de optimización topológica de estructuras continuas basado en quimiotaxis de bacterias

dc.contributorGuzmán Pardo, María Alejandra
dc.creatorLeón Medina, Jersson Xavier
dc.date.accessioned2021-06-30T14:00:03Z
dc.date.available2021-06-30T14:00:03Z
dc.date.created2021-06-30T14:00:03Z
dc.date.issued2015
dc.identifierhttps://repositorio.unal.edu.co/handle/unal/79743
dc.identifierUniversidad Nacional de Colombia
dc.identifierRepositorio Institucional Universidad Nacional de Colombia
dc.identifierhttps://repositorio.unal.edu.co/
dc.description.abstractEn este proyecto, la quimiotaxis de bacterias es utilizada para resolver problemas de optimización topológica estructural particularmente en estructuras continuas bidimensionales sometidas a cargas puntuales. Se desarrolló un algoritmo de optimización topológica denominado “Algoritmo de Optimización Topológica Basado en Quimiotaxis de Bacterias BCBTOA-2" que describe la estrategia quimiotáxica como mecanismo simulado para retirar material en una estructura con el ánimo de minimizar energía de deformación y maximizar rigidez. Se solucionaron algunos problemas evidenciados en optimización topológica como los llamados tableros de ajedrez y la dependencia de malla a través de un esquema de regularización basado en quimiotaxis de bacterias. A continuación, el algoritmo es aplicado a distintas configuraciones de vigas bidimensionales para mostrar su rendimiento y versatilidad; se aplicaron métricas de desempeño relacionadas con el valor de la energía de deformación total de una estructura y el número de iteraciones necesarias para que el algoritmo converja, esto con el _n de comparar el método propuesto frente a otros métodos de optimización topológica como son el método OC-SIMP y el método Soft BESO. (Texto tomado de la fuente)
dc.description.abstractIn this project, bacterial chemotaxis is used to solve structural topology optimization problems, especially in two-dimensional continuous structures subjected to point loads. A topology optimization algorithm called Bacterial-Chemotaxis-Based Topology Optimization Algorithm 2 BCBTOA-2”was developed to describes the chemotactic strategy as a simulation of material removal in a structure. The algorithm minimizes compliance and maximizes stiffness, so, the algorithm is applied to various two-dimensional configurations of beams to show its efficiency, performance and versatility. Common problems in topology optimization such as checkerboards and mesh dependence were solved through a regularization scheme based on bacterial chemotaxis. Then, the BCBTOA-2 algorithm is evaluated determining its effectiveness and computational performance. We apply performance metrics related to the value of the total compliance of a structure and the number of iterations required for the algorithm to converge, this in order to compare the proposed method, which is competitive with other methods of topology optimization as the OC-SIMP method and the Soft BESO method. (Text taken from source)
dc.languagespa
dc.publisherUniversidad Nacional de Colombia
dc.publisherBogotá - Ingeniería - Maestría en Ingeniería - Ingeniería Mecánica
dc.publisherDepartamento de Ingeniería Mecánica y Mecatrónica
dc.publisherFacultad de Ingeniería
dc.publisherBogotá, Colombia
dc.publisherUniversidad Nacional de Colombia - Sede Bogotá
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dc.rightsAtribución-NoComercial-SinDerivadas 4.0 Internacional
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightsDerechos Reservados al Autor, 2015
dc.titleMétodo de optimización topológica de estructuras continuas basado en quimiotaxis de bacterias
dc.typeTrabajo de grado - Maestría


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