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首页> 外文期刊>Journal of Sound and Vibration >Numerical simulation of active control of structural vibration and acoustic radiation of a fluid-loaded laminated plate
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Numerical simulation of active control of structural vibration and acoustic radiation of a fluid-loaded laminated plate

机译：载流层压板结构振动和声辐射主动控制的数值模拟

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摘要

Active control Of Structural vibration and acoustic radiation of a fluid-loaded laminated plate is numerically studied. A finite element formulation is developed for modelling the dynamic behavior of the laminated plate integrated with piezoelectric layers and viscoelastic layer based on the first order shear deformation theory (FSDT). The Rayleigh integral on the plate surface is coupled with the derived finite element formulation to model acoustic fluid-structure interaction or the baffled laminated plate subjected to heavy fluid loading. Active damping control and active constrained layer damping (ACLD) control of structural vibration and acoustic radiation of the baffled fluid-loaded laminated plate with piezoelectric layers acting as active damping layers and viscoelastic layer acting as passive damping layer are formulated using the developed numerical method and negative velocity feedback control algorithm. The control performance of the active damping control and the ACLD control of structural vibration and acoustic radiation of a fluid-loaded plate is numerically evaluated. The results obtained demonstrate that the ACLD is more effective. The proposed model can be used for designing and predicting the control of structural vibration and acoustic radiation of a fluid-loaded laminated plate using active damping control and the ACLD treatment. (C) 2003 Elsevier Ltd. All rights reserved.
机译：数值研究了流体加载层压板的结构振动和声辐射的主动控制。基于一阶剪切变形理论（FSDT），开发了一种有限元公式，用于建模集成有压电层和粘弹性层的层压板的动力学行为。板表面上的瑞利积分与导出的有限元公式耦合，以模拟声流体与结构的相互作用或承受重流体载荷的折流板。利用开发的数值方法，建立了以压电层为主动阻尼层，粘弹性层为被动阻尼层的折流板的结构振动和声辐射的主动阻尼控制和主动约束层阻尼控制。负速度反馈控制算法。数值评估了主动阻尼控制的控制性能以及流体加载板的结构振动和声辐射的ACLD控制。获得的结果表明，ACLD更有效。所提出的模型可用于设计和预测采用主动阻尼控制和ACLD处理的流体层压板的结构振动和声辐射的控制。 （C）2003 Elsevier Ltd.保留所有权利。

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