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The performance of an acoustic absorbent lining can be significantly related to the shape of the introduced holes inside the lining, the general shape of holes can be designed by the topology optimization. In this paper, the finite element model of an acoustic absorbent lining is built, the acoustic and structure response characteristics are performed by used of the direct finite element method(FEM)...
An optimization design on reducing vibration and noise radiation of a plate subject to the weight constraints is studied. The FEM (finite element method) is used to simulate vibration and noise radiation. The main goal is to evaluate the optimization effect on vibration reduction and noise radiation reduction. The sensitivity of vibration velocity with respect to shell thickness is formulated for...
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