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- W2141061365 abstract "A design sensitivity formulation for structural- acoustic problems at high frequencies (1,000-20,000 Hz) is presented using the energy finite element method. The material property, panel thickness, and structural damping factor are taken as design variables. The con- tinuum method is used to derive the design sensitivity equation of the energy flow equation, while the discrete method is used to calculate the variation of the cou- pling relation. The design variable's effect on the power transfer coefficient is discussed in detail. Even when the system matrix equation is not symmetric, the adjoint problem is solved using the same factorized matrix from energy finite element analysis. Design sen- sitivity results calculated from the proposed method are compared to finite difference sensitivity results with good agreement." @default.
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- W2141061365 date "2002-09-04" @default.
- W2141061365 modified "2023-09-23" @default.
- W2141061365 title "Design Sensitivity Analysis of High-Frequency Structural Acoustic Problems" @default.
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- W2141061365 doi "https://doi.org/10.2514/6.2002-5434" @default.
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