دورية أكاديمية
Topology optimisation of self-supporting structures based on the multi-directional additive manufacturing technique
| العنوان: | Topology optimisation of self-supporting structures based on the multi-directional additive manufacturing technique |
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| المؤلفون: | Jun Ye, Qichen Guo, Hongjia Lu, Pinelopi Kyvelou, Yang Zhao, Leroy Gardner, Yi Min Xie |
| المصدر: | Virtual and Physical Prototyping, Vol 18, Iss 1 (2023) |
| بيانات النشر: | Taylor & Francis Group, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Science LCC:Manufactures |
| مصطلحات موضوعية: | Topology optimisation, multi-axis additive manufacturing, overhang constraints, self-supporting structures, performance sacrifice, Science, Manufactures, TS1-2301 |
| الوصف: | ABSTRACTAlthough additive manufacturing (AM) continues to gain widespread adoption, the overhang problem remains a critical issue affecting printing quality. The design of self-supporting structures via topology optimisation approaches has been extensively studied. However, current optimisation research predominantly focuses on 3-axis AM machines, overlooking the more recently developed multi-axis machines. Moreover, the performance sacrifice due to overhang constraints in 3-axis AM can be significant, especially in structures with small volume fractions. To address this, we propose a two-step approach considering overhang constraints for multi-axis AM. This approach begins with a structure optimised using traditional topology optimisation. In the first step, a new optimisation problem determines printing surfaces for the given structure. If the proportion of unprintable elements isn't satisfactory, a second re-optimisation step is carried out to further reduce the unprintable proportion. Several examples demonstrate the effectiveness of the proposed approach. Notably, the significant performance sacrifice associated with the 3-axis AM approach becomes negligible when applying our multi-axis AM-based method. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 17452759 1745-2767 1745-2759 |
| Relation: | https://doaj.org/toc/1745-2759; https://doaj.org/toc/1745-2767 |
| DOI: | 10.1080/17452759.2023.2271458 |
| URL الوصول: | https://doaj.org/article/9e44eae893464dc3977ff851fbbd1080 |
| رقم الأكسشن: | edsdoj.9e44eae893464dc3977ff851fbbd1080 |
| قاعدة البيانات: | Directory of Open Access Journals |
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Full Text Finder | تدمد: | 17452759 17452767 |
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| DOI: | 10.1080/17452759.2023.2271458 |