Structural topology optimization considering both manufacturability and manufacturing uncertainties

Wang, Chao; Xu, Bin; Duan, Zunyi; Rong, Jian

doi:10.1007/s00158-022-03458-9

Cited by 3 publications

(2 citation statements)

References 36 publications

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“…Manufacturing constraints (Schramm and Zhou, 2006;Liu and Ma, 2016;Wang et al, 2022) hold significant importance in topology optimization in industrial applications. Numerous methodologies have been developed, and commercially available software now incorporates manufacturing constraint functions for scenarios where the production technique is predetermined, such as extrusion (Zhou et al, 2002;Wang et al, 2020), casting (Lu and Chen, 2012), infill structure (Wu et al, 2018), stress direction (Kamada et al, 2021), and additive manufacturing (Gaynor et al, 2014;Zhang and Cheng, 2020).…”

Section: Introductionmentioning

confidence: 99%

Plate manufacturing constraint in topology optimization using anisotropic Helmholtz filter

Wada,

Shimada,

Nishiguchi

et al. 2023

Preprint

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The manufacturing constraint of topology optimization for finding structures composed primarily of plate cross sections with an automatically decided surface normal is discussed. The Helmholtz filter to the sensitivity of the objective function is designed such that the eigenvalue-resolved stress tensor is converted to the anisotropic filter tensor. Plate structure formation and stiffness compliance performance are discussed through three sample problems: a solid bar subjected to torsional loads, an L-shaped member subjected to multiple loads, and a vehicle body frame intended to be a complex frame.

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Section: Introductionmentioning

confidence: 99%

Plate manufacturing constraint in topology optimization using anisotropic Helmholtz filter

Wada,

Shimada,

Nishiguchi

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…From the viewpoint of manufacturability or ease of manufacturing, filtering is used to suppress shapes that are difficult to manufacture, such as checkerboard, but this has not escaped the realm of parameter optimization (Sigmud and Petersson, 1998). Some studies consider manufacturability or ease of manufacturing as a metric in the objective function of TO (Liu et al, 2015;Lazarov et al, 2016;Liu and Ma, 2016;Wang et al, 2021;Zhao et al 2021;Wang et al, 2023). However, another important factor to consider when using TO as a practical technique is to minimize the effects of unpredictable variations, such as variations in property values due to variations in material properties.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective topology design optimization combined with robust optimization

MARUO

ITANI

HASOME

et al. 2023

JAMDSM

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Topology optimization (TO), which is a design optimization technique that does not require design parameters, has been attracting attention. TO has a high degree of freedom and can obtain a novel design shape suitable for desired purposes. However, the characteristics of the obtained design shape may be greatly damaged due to uncertainty such as variations in material properties. Also, when multi-objective optimization for TO is considered, an increase in the calculation load becomes a major problem. In this study, as a method for efficiently conducting multiobjective robust TO, multi-objective robust solutions can be obtained by using a single-objective robust covariance matrix adaptation evolution strategy and the hybrid method of robust genetic algorithm and multi-objective robust design optimization. The proposed method was applied to design problems of magnetic shields, and obtaining a wide range Pareto front with robustness that cannot be obtained by conventional methods is possible.

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Plate Manufacturing Constraint in Topology Optimization Using Anisotropic Filter

Wada,

Shimada,

Nishiguchi

et al. 2025

Computer-Aided Design

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Structural topology optimization considering both manufacturability and manufacturing uncertainties

Cited by 3 publications

References 36 publications

Plate manufacturing constraint in topology optimization using anisotropic Helmholtz filter

Plate manufacturing constraint in topology optimization using anisotropic Helmholtz filter

Multi-objective topology design optimization combined with robust optimization

Plate Manufacturing Constraint in Topology Optimization Using Anisotropic Filter

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