Study on topological optimization of structure using Cantor function as teaching function

M. Arakawa*, N. Ohkubo, H. Yamakawa

*この研究の対応する著者

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

In order to obtain better structural designs, it is important to carry out optimization from primary parts of those designs. Especially, designs of topologies of structures were depended on intuition of the designers and they were not always best fitted to the requirements of the structure. These days, designs of topologies of the structures become important to meet those purposes. In this study, we will propose a new method to obtain optimum topology of the structure to satisfy their requirements by growth and degeneration tutored by Cantor function as teaching function. Cantor function is the one which is very famous as an introduction of the fractal. By operating its order, it is very easy to manipulate its division among 0 and 1. We set skipping and restarting rules of growth and degeneration, and criteria of convergence. We applied the proposed method to the problem similar to the one well-known as Mitchell truss problem to compare the results obtained by the proposed method. From these numerical examples, we can obtain quite similar topological results to the homogenization method in small number of iteration. There, the proposed method has advantages in computational time, cost and memory. More over, we can see the growth of the topology. Although we demonstrate the proposed method in a few examples, we can say that the proposed method can derive optimum oriented topology even with this simple scheme efficiently.

本文言語English
ホスト出版物のタイトルAmerican Society of Mechanical Engineers, Design Engineering Division (Publication) DE
編集者R. Gadh
Place of PublicationNew York, NY, United States
出版社ASME
ページ733-738
ページ数6
83
2 Pt 2
出版ステータスPublished - 1995
イベントProceedings of the 1995 ASME Design Engineering Technical Conference - Boston, MA, USA
継続期間: 1995 9月 171995 9月 20

Other

OtherProceedings of the 1995 ASME Design Engineering Technical Conference
CityBoston, MA, USA
Period95/9/1795/9/20

ASJC Scopus subject areas

  • 工学一般

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