Journal article
Moving Morphable Multi Components Introducing Intent of Designer in Topology Optimization
AIAA journal, Vol.61(4), pp.1720-1734
04/2023
DOI: 10.2514/1.J062210
Abstract
Topology optimization based on moving morphable components efficiently generates a topology that is expressed by a few geometrical design variables. However, conventional moving morphable components have three problems: lack of [Formula: see text] continuity between components, difficulty in describing a smooth rollup shape, and difficulty in generating a rigid joint to an optimized topology. In this study, a novel topology optimization framework was developed by introducing theories devised for multibody analysis. First, an adaptive moving morphable component based on absolute nodal coordinate formulation was proposed. Because both the position and gradient are used as design variables, [Formula: see text] continuity is ensured. Second, a position and gradient connection algorithm leveraging the linear constraint of the absolute nodal coordinate formulation was proposed to describe the smooth rollup shape. Third, a rigid joint was generated by introducing the gradient constraint equation in an optimizer. The developed framework exhibited superior convergence as compared with the conventional one in the benchmark short beam problem. It successfully generated an optimal topology with the intent of a designer (that is, designer-selected topology continuity and rigid joints), which facilitated the assembly and manufacturing of topologically optimized structural members to construct an entire aerospace structure.
Details
- Title: Subtitle
- Moving Morphable Multi Components Introducing Intent of Designer in Topology Optimization
- Creators
- Keisuke Otsuka - Tohoku UniversityShuonan Dong - Tohoku UniversityRyo Kuzuno - Tohoku UniversityHiroyuki Sugiyama - University of IowaKanjuro Makihara - Tohoku University
- Resource Type
- Journal article
- Publication Details
- AIAA journal, Vol.61(4), pp.1720-1734
- DOI
- 10.2514/1.J062210
- ISSN
- 0001-1452
- eISSN
- 1533-385X
- Grant note
- DOI: 10.13039/100018153, name: Ebara Hatakeyama Memorial Foundation; name: Joint Usage/Research Center for Interdisciplinary Large-scale Information Infrastructures, award: jh210052-NAH; DOI: 10.13039/501100007656, name: Iwatani Naoji Foundation; DOI: 10.13039/501100006575, name: Institute of Fluid Science, Tohoku University, award: Collaborative Research Project / J22I013; DOI: 10.13039/501100012312, name: TEPCO Memorial Foundation; DOI: 10.13039/501100001691, name: Japan Society for the Promotion of Science, award: 21K14341
- Language
- English
- Electronic publication date
- 01/03/2023
- Date published
- 04/2023
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984355060202771
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