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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CHEN Lu-yun was born in 1975. He is a PhD candidate for engineering mechanics of Shanghai Jiao Tong University. His current research includes vibration control and structural-acoustic optimization.
WANG De-yu was born in 1963. He is a professor and a PhD supervisor of Shanghai Jiao Tong University. His current research includes structural dynamics and structural experiment technique.
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Chen, Ly., Wang, Dy. Structural-acoustic optimization of stiffened panels based on a genetic algorithm. J. Marine. Sci. Appl. 6, 55–61 (2007). https://doi.org/10.1007/s11804-007-7006-4
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DOI: https://doi.org/10.1007/s11804-007-7006-4
Keywords
- structural-acoustic optimization
- acoustic radiation power
- finite element method
- boundary element method
- stiffened panel structure
- genetic algorithm