Determining Elastic Constants of Material Using Optimization Method and Vibration Test

被引:1
|
作者
Lin, Yu-Hua [1 ]
Chang, Chia-Lung [2 ]
机构
[1] Natl Yunlin Univ Sci & Technol, Grad Sch Engn Sci & Technol, 123 Univ Rd,Sect 3, Touliu 64002, Yunlin, Taiwan
[2] Natl Yunlin Univ Sci & Technol, Dept Mech Engn, Touliu, Yunlin, Taiwan
来源
ADVANCES IN MATERIALS MANUFACTURING SCIENCE AND TECHNOLOGY XIII, VOL II: MODERN DESIGN THEORY AND METHODOLOGY, MEMS AND NANOTECHNOLOGY, AND MATERIAL SCIENCE AND TECHNOLOGY IN MANUFACTURING | 2009年 / 628-629卷
关键词
Vibration test; Elastic properties; Hybrid Genetic /Simulated Annealing algorithm; MODAL-ANALYSIS; COMPOSITE-MATERIALS; ORTHOTROPIC PLATES; IDENTIFICATION;
D O I
10.4028/www.scientific.net/MSF.628-629.89
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper proposes an inverse method to obtain the elastic properties of material. The sum of the squared differences between the experimental resonance frequencies and calculated resonance frequencies from the finite element method is chosen as the objective function. The proposed method presents an optimization method, Hybrid Genetic /Simulated Annealing algorithm, to determine the elastic properties. When the objective function reaches its minimum value, its corresponding design variables are the elastic constants of the material. The inverse method is applied to determine the elastic constants of aluminum plate, Glass/PP laminate, and double coated steel plate. The results indicate that for few elastic constants as an aluminum plate, Hybrid Genetic /Simulated Annealing algorithm has no apparent improvement, but more calculation time in comparison method. While simulated annealing while for Glass/PP laminate and double coated steel plate with more elastic constants, Hybrid Genetic /Simulated Annealing algorithm is superior to the traditional simulated annealing method.
引用
收藏
页码:89 / +
页数:3
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