Open AccessA simple way to achieve black-and-white designs in topology optimization
Author(s) -
Jian Xing,
Longfei Qie
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1798/1/012043
Subject(s) - topology optimization , computer science , topology (electrical circuits) , simple (philosophy) , mathematical optimization , void (composites) , filter (signal processing) , algorithm , process (computing) , mathematics , engineering , finite element method , materials science , structural engineering , computer vision , philosophy , epistemology , combinatorics , composite material , operating system
In order to obtain crisp black-and-white designs, it is vital to use filtering techniques in density-based topology optimization. However, the applying of filters result in a large number of gray transition zones between the solid and void phases in the final designs. To solve this problem, a dynamic parameter tuning method is proposed in this paper. With the approach, the filter radius can be dynamically adjusted during the optimization process, thereby suppressing the gray elements in the final designs. The proposed method is tested by the classic MBB beam problems. The experimental results show that the proposed method can effectively inhibit the appearance of gray transition areas in the optimization results.