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- W2369595335 abstract "Based on nearfield sound pressure sensing to pick up error information, an approach for constructing active acoustic structure to effectively reduce radiated sound power at low frequency is proposed. The idea is that a nearfield pressure after active control is used as error signals and transformed into an objective function in adaptive active control process. Firstly sound power expression using near-field pressure radiated from a flexible structure is derived, and then three kind of nearfield pressure based active control strategies, i.e. minimization of radiated sound power, minimization of sound power for dominant radiation modes and minimization of sound power for modified dominant radiation modes are respectively presented and applied to active control of radiated single and broadband noise. Finally computer simulations on sound power reduction under three strategies are conducted and it is shown that the proposed active control strategies are invalid and considerable reduction in radiated sound power can be achieved." @default.
- W2369595335 created "2016-06-24" @default.
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- W2369595335 date "2004-01-01" @default.
- W2369595335 modified "2023-09-28" @default.
- W2369595335 title "Active control of radiated sound using near field pressure sensing" @default.
- W2369595335 hasPublicationYear "2004" @default.
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