Design method for low-noise composite plate structure

Design method for low-noise composite plate structure

The invention discloses a design method for a low-noise composite plate structure. The design method for the low-noise composite plate structure includes the steps of calculating the radiation sound power of a lower surface plate according to the structure shape, excitation distribution situation an...

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Hauptverfasser: WU JINWU, WU TINGYANG
Format: Patent
Sprache:eng
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CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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WU TINGYANG
description The invention discloses a design method for a low-noise composite plate structure. The design method for the low-noise composite plate structure includes the steps of calculating the radiation sound power of a lower surface plate according to the structure shape, excitation distribution situation and boundary condition of a honeycomb sandwich panel; calculating the force radiation modal of the lower surface plate; calculating the force radiation modal node of the lower surface plate structure; designing the structure and position of a honeycomb core according to the force radiation modal node of the lower surface plate structure; realizing the radiation noise minimization of the honeycomb sandwich panel structure. The design method for the low-noise composite plate structure is simple, and the method only needs to change the honeycomb core position to locate the honeycomb core on the radiation modal node. The design method for the low-noise composite plate structure is strong in practicability and easy to popularize.
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The design method for the low-noise composite plate structure includes the steps of calculating the radiation sound power of a lower surface plate according to the structure shape, excitation distribution situation and boundary condition of a honeycomb sandwich panel; calculating the force radiation modal of the lower surface plate; calculating the force radiation modal node of the lower surface plate structure; designing the structure and position of a honeycomb core according to the force radiation modal node of the lower surface plate structure; realizing the radiation noise minimization of the honeycomb sandwich panel structure. The design method for the low-noise composite plate structure is simple, and the method only needs to change the honeycomb core position to locate the honeycomb core on the radiation modal node. 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The design method for the low-noise composite plate structure includes the steps of calculating the radiation sound power of a lower surface plate according to the structure shape, excitation distribution situation and boundary condition of a honeycomb sandwich panel; calculating the force radiation modal of the lower surface plate; calculating the force radiation modal node of the lower surface plate structure; designing the structure and position of a honeycomb core according to the force radiation modal node of the lower surface plate structure; realizing the radiation noise minimization of the honeycomb sandwich panel structure. The design method for the low-noise composite plate structure is simple, and the method only needs to change the honeycomb core position to locate the honeycomb core on the radiation modal node. 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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Design method for low-noise composite plate structure
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