Shape Generation of Grid Structures by Inverse Hanging Method Coupled with Multiobjective Optimization

Su, Yan; Wu, Yue; Ji, Wei; Shen, Shihui

doi:10.1111/mice.12361

Cited by 31 publications

(9 citation statements)

References 34 publications

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“…The objective of the training module is to automatically generate, using a multi-objective algorithm [15,39,40,46,47] and training images, acyclic graphs (filters) constructed from a set of basic instructions.…”

Section: Training Modulementioning

confidence: 99%

A multiobjective metaheuristic approach for morphological filters on many-core architectures

Pedrino

Lima

Tempesti

2019

ICA

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Section: Training Modulementioning

confidence: 99%

A multiobjective metaheuristic approach for morphological filters on many-core architectures

Pedrino

Lima

Tempesti

2019

ICA

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“…Talischi, Paulino, Pereira, and Menezes (2010) applied the polygonal element in the TO process. Shape optimization techniques have been applied in designing truss structures (Adeli & Balasubramanyam, 1987, 1988; Su, Wu, Ji, & Shen, 2018) and shell structures (Kociecki & Adeli, 2014, 2015; Rombouts, Lombaert, De Laet, & Schevenels, 2019; Xia, Wu, & Hendriks, 2019).…”

Section: Introductionmentioning

confidence: 99%

Optimization‐based three‐dimensional strut‐and‐tie model generation for reinforced concrete

Xia

Langelaar

Hendriks

2020

Computer aided Civil Eng

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Strut-and-tie modelling (STM) is an effective and widely used method to design disturbed regions (D-regions) of reinforced concrete structures. Among the various steps of STM, finding a suitable truss-analogy model is the most challenging part. Even for experienced engineers it is difficult to find representative models for complex D-regions, and this task is even harder for three-dimensional (3D) Dregions. To date, only a few 3D STM models have been proposed by researchers for several complex D-regions, which leaves practitioners with little guidance.In order to solve this problem, a method is proposed to automatically generate 3D optimization-based STM (3D-OPT-STM) models. The generation method comprises a compliance-based topology optimization process that generates optimized structural forms by maximizing stiffness, a topology extraction method, and a shape optimization method. In this study, three 3D-OPT-STM models are generated for typical 3D D-regions, and their performances are compared to manually created STM models. The generated 3D-OPT-STM models result in more economical designs. Moreover, geometrical and loading parameter studies demonstrate the applicability and robustness of the proposed method.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…Shape and grid are two main problems in the research of the free‐form grid structures. The shape generation problem has been solved well by many researchers (Bletzinger & Ramm, 2001; Sakai & Ohsaksi, 2018; Su, Wu, Ji, & Shen, 2018). However, the grid generation is still a difficulty for designing free‐form grid structures.…”

Section: Introductionmentioning

confidence: 99%

Computational morphogenesis of free‐form grid structures with Voronoi diagram

et al. 2020

Computer aided Civil Eng

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Free‐form grid structures have developed increasingly with the development of computer‐aided design and advanced construction technology. However, the grid generation is still a difficulty for designing free‐form grid structures. The computational morphogenesis of free‐form grid structures with the Voronoi diagram is proposed to solve this difficulty. Voronoi diagram is introduced to form the irregular grid of structures. Morphologies of plane and curved surface Voronoi grid structure are formulated to realize parametric modeling of the structural grid. A comprehensive structural index is proposed for evaluating free‐form grid structures quantitatively from the aspects of both architectural and structural behaviors. Taking the seeds as optimization variables and the comprehensive structural index as optimization objective, the grid generation problem is transformed into an optimization problem. Numerical examples show that the proposed morphogenesis is feasible and effective for the grid generation of free‐form structures. The free‐form grid structures generated by the proposed method have not only appealing geometry but also good mechanical behavior. The consideration of the symmetry can accelerate the grid generation process. Different grid distributions can be realized with different supports.

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Shape Generation of Grid Structures by Inverse Hanging Method Coupled with Multiobjective Optimization

Cited by 31 publications

References 34 publications

A multiobjective metaheuristic approach for morphological filters on many-core architectures

A multiobjective metaheuristic approach for morphological filters on many-core architectures

Optimization‐based three‐dimensional strut‐and‐tie model generation for reinforced concrete

Computational morphogenesis of free‐form grid structures with Voronoi diagram

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