Damping material distribution analysis for structural-acoustic optimization

2018 International Conference on Advanced Materials, Intelligent Manufacturing and Automation

材料科学;机械制造;运输工程

Li, Leixin^1,2 ; Yi, Hong^2 ; Xu, Jian^1

China Ship Development and Design Center, Wuhan

430064, China^1

State Key Laboratory of Ocean Engineering, Shanghai Jiaotong University, Shanghai

200240, China^2

关键词: Artificial material;    Distribution topology;    Material conversions;    Mathematical formulation;    Numerical results;    Optimization approach;    Structural acoustic radiation;    Structural-acoustic optimization;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/382/2/022047/pdf
DOI  :  10.1088/1757-899X/382/2/022047

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The damping material topology optimization problem of structural-acoustic radiation is discussed. According to the artificial material hypothesis, a novel optimization approach of the damping materials distribution method is introduced. The mathematical formulation about damping material topology optimization is established. Finally, a hexahedral box structures for example, the distribution topology optimization method is illustrated. With topology optimization, material conversion between damping and artificial materials is achieved. Numerical results indicate that the proposed artificial material hypothesis for topology optimization is effective and feasible.