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Un marco de diseño de optimización topológica multiescala con modelo sustituto impulsado por datos

Han Zhou1,2, Chunping Zhou3

  • 1AVIC Research Institute for Special Structures of Aeronautical Composites, Jinan, 250032, China. 15954788652@163.com.

Scientific reports
|January 6, 2026
PubMed
Resumen
Este resumen es generado por máquina.

Este estudio presenta un nuevo marco multiescala para el diseño de metamateriales avanzados. Permite la optimización simultánea de las propiedades del material y la estructura para un mejor rendimiento en los campos aeroespacial y biomédico.

Palabras clave:
optimización multiescalamodelos sustitutosmetamaterialesdiseño jerárquicomecánica computacional

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Área de la Ciencia:

  • Mecánica Computacional; Ciencia de Materiales; Optimización Topológica

Sus antecedentes:

  • La optimización topológica convencional tiene dificultades con las estructuras jerárquicas graduadas funcionalmente debido a la desacoplación de escalas y los costos computacionales.; El diseño de metamateriales complejos y de alto rendimiento requiere enfoques computacionales avanzados.

Objetivo del estudio:

  • Desarrollar un marco multiescala transformador fuera de línea-en línea para el diseño de estructuras jerárquicas graduadas funcionalmente.; Permitir la optimización simultánea de la topología macroscópica y los parámetros de la red microscópica para metamateriales impulsados por el rendimiento.

Principales métodos:

  • Se utilizaron modelos sustitutos de Mínimos Cuadrados Móviles para el mapeo de propiedades en tiempo real a través de análisis de elementos finitos multiescala, evitando la separación de escalas.; Se implementó un esquema unificado de Optimización de Material Discreto para la cooptimización concurrente de la topología y los parámetros de la red.; Se validó el marco en puntos de referencia geométricamente complejos.

Principales resultados:

  • Demostró una racionalidad mecánica superior con invarianza de configuración alineada con la ruta de carga y modulación adaptativa de la densidad.; Se logró un control simultáneo sobre la distribución de la configuración espacial y la gradación de la propiedad anisotrópica.; Se tendió un puente entre la libertad de diseño de alta dimensión y la tratabilidad computacional.

Conclusiones:

  • El marco desarrollado establece un nuevo paradigma para el diseño de metamateriales impulsados por el rendimiento.; Ofrece soluciones listas para la fabricación para aplicaciones aeroespaciales y biomédicas.; Supera las limitaciones de la optimización topológica convencional para estructuras jerárquicas.