期刊
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
卷 52, 期 4, 页码 737-754出版社
SPRINGER
DOI: 10.1007/s00158-015-1265-5
关键词
Topology optimization; Robust design; Wave propagation; Acoustics; Noise reduction; Projection filtering; Uniform design variations; Non-uniform design variations
资金
- Villum Fonden through the research project Topology Optimization - the Next Generation NextTop
Resonance and wave-propagation problems are known to be highly sensitive towards parameter variations. This paper discusses topology optimization formulations for creating designs that perform robustly under spatial variations for acoustic cavity problems. For several structural problems, robust topology optimization methods have already proven their worth. However, it is shown that direct application of such methods is not suitable for the acoustic problem under consideration. A new double filter approach is suggested which makes robust optimization for spatial variations possible. Its effect and limitations are discussed. In addition, a known explicit penalization approach is considered for comparison. For near-uniform spatial variations it is shown that highly robust designs can be obtained using the double filter approach. It is finally demonstrated that taking non-uniform variations into account further improves the robustness of the designs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据