| Structural-acoustic optimization of stiffened panels based on a genetic algorithm |
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| 引用本文： | CHEN Lu-yun WANG De-yu. Structural-acoustic optimization of stiffened panels based on a genetic algorithm[J]. 船舶与海洋工程学报, 2007, 6(4): 55-61. DOI: 10.1007/s11804-007-7006-4 |
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| 作者姓名： | CHEN Lu-yun WANG De-yu |
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| 作者单位： | CHEN Lu-yun and WANG De-yu State Key Laboratory of Ocean Eng，Shanghai Jiao Tong University，Shanghai 200030，China |
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| 摘 要： | For the structural-acoustic radiation optimization problem under external loading,acoustic radiation power was considered to be an objective function in the optimization method. The finite element method(FEM) and boundary element method(BEM) were adopted in numerical calculations,and structural response and the acoustic response were assumed to be de-coupled in the analysis. A genetic algorithm was used as the strategy in optimization. In order to build the relational expression of the pressure objective function and the power objective function,the enveloping surface model was used to evaluate pressure in the acoustic domain. By taking the stiffened panel structural-acoustic optimization problem as an example,the acoustic power and field pressure after optimized was compared. Optimization results prove that this method is reasonable and effective.
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| 关 键 词： | 声辐射能 有限元方法 边界元方法 声音结构最优化 |
| 文章编号： | 1671-9433（2007）04-0055-07 |
| 收稿时间： | 2007-03-27 |
Structural-acoustic optimization of stiffened panels based on a genetic algorithm |
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| Lu-yun Chen,De-yu Wang. Structural-acoustic optimization of stiffened panels based on a genetic algorithm[J]. Journal of Marine Science and Application, 2007, 6(4): 55-61. DOI: 10.1007/s11804-007-7006-4 |
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| Authors: | Lu-yun Chen De-yu Wang |
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| Affiliation: | (1) State Key Laboratory of Ocean Eng, Shanghai Jiao Tong University, Shanghai, 200030, China |
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| Abstract: | For the structural-acoustic radiation optimization problem under external loading,acoustic radiation power was considered to be an objective function in the optimization method. The finite element method(FEM) and boundary element method(BEM) were adopted in numerical calculations,and structural response and the acoustic response were assumed to be de-coupled in the analysis. A genetic algorithm was used as the strategy in optimization. In order to build the relational expression of the pressure objective function and the power objective function,the enveloping surface model was used to evaluate pressure in the acoustic domain. By taking the stiffened panel structural-acoustic optimization problem as an example,the acoustic power and field pressure after optimized was compared. Optimization results prove that this method is reasonable and effective. |
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| Keywords: | structural-acoustic optimization acoustic radiation power finite element method boundary element method stiffened panel structure genetic algorithm |
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