Active structural acoustic control for radiated sound power reduction of enclosure with vent holes based on radiation modes

Active Structural Acoustic Control (ASAC) is an effective method for sound radiation control. To solve the coupling effect or inconvenience problems existed in the application of conventional methods, by utilizing the characteristic of intuitive representation of radiated sound power through force radiation modes, the control forces are designed to make the total excitation force vector orthogonal to each dominant force radiation mode. Therefore, an ASAC method by utilizing force radiation modes is proposed, and detailed theoretical research and numerical calculation analysis are carried out. The research results indicate that the control force requirement can be intuitively obtained through the force radiation modes, and decoupled control of radiated sound power corresponding to each force radiation mode is achieved by the proposed method. Thus, the control strategy and system construction can be greatly simplified, and structural acoustic radiation can be effectively controlled.

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Adaptive Vibration Suppression of a Finite Locally Resonant Metamaterial Plate using an Real-time State-space Identification based Controller

Jeon¹,

Lee²,

Ryu³

et al. 2023

KSNVE

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Active structural acoustic control for radiated sound power reduction of enclosure with vent holes based on radiation modes

Cited by 3 publications

References 30 publications

Optimized PI-PDF active structural acoustic control of smart FG GPL-reinforced closed-cell metallic foam sandwich plate

Optimized PI-PDF active structural acoustic control of smart FG GPL-reinforced closed-cell metallic foam sandwich plate

A study on active structural acoustic control using force radiation modes

Adaptive Vibration Suppression of a Finite Locally Resonant Metamaterial Plate using an Real-time State-space Identification based Controller

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