An Improved Method for Decreasing Intermediate Density Elements in Topology Optimization

DOI

10.2991/iccia-17.2017.170How to use a DOI?

Keywords

Topology optimization, Density gradient message, SIMP, OC.

Abstract

The instability phenomenon of numerical solution usually exists in topology optimization of continuum structure. The sensitivity filter method is used to solve this instability phenomenon of numerical solution generally, but many intermediate density elements still exist in the result of topology optimization. Intermediate density elements are difficult to manufacture in the industry, so it is urgent to form an efficient method to decrease them. This paper proposes a improved method-considering density gradient message and elements numbers in the filter radius. It sets up a model which focus on modifying the weighting function and the elements' density within the filter radius. It is based on Solid Isotropic Material with Penalization (SIMP). The optimality criteria method (OC) is used to solve this model. Finally a widely studied example is used to demonstrate the availability and advantage of the proposed filter method.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zaizhuo Jiang
AU  - Li Zhang
AU  - Yingbing Wan
AU  - Cong Jin
PY  - 2016/07
DA  - 2016/07
TI  - An Improved Method for Decreasing Intermediate Density Elements in Topology Optimization
BT  - Proceedings of the 2nd International Conference on Computer Engineering, Information Science & Application Technology (ICCIA 2017)
PB  - Atlantis Press
SP  - 968
EP  - 971
SN  - 2352-538X
UR  - https://doi.org/10.2991/iccia-17.2017.170
DO  - 10.2991/iccia-17.2017.170
ID  - Jiang2016/07
ER  -