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    • 1. 发明授权
    • Active/passive distributed absorber for vibration and sound radiation control
    • 用于振动和声辐射控制的主动/被动分布式吸收器
    • US07573177B2
    • 2009-08-11
    • US11192433
    • 2005-07-29
    • Christopher R. FullerKathleen Kondylas
    • Christopher R. FullerKathleen Kondylas
    • H01L41/08
    • F16F15/005F16F1/361F16F1/40F16F9/306F16F2222/08G10K11/178G10K2210/1291G10K2210/3224G10K2210/3229
    • The active/passive absorber for extended vibration and sound radiation control includes principally two layers. The first layer has a low stiffness per unit area which allows motion in the direction perpendicular to its main plane. The second layer is principally a mass layer. These two combined layers have a frequency of resonance close to one of the main structure. The dynamic behavior of the coupled system makes the active/passive absorber a passive absorber; however, the first layer can be electrically actuated to induce motion in the direction perpendicular to its main plane. This addition property induces and/or changes the motion of the mass layer and therefore improves the dynamic properties of the active/passive absorber system. The active/passive absorber can have multiple mass layers and multiple elastic layers stacked one on top of the other. In addition, the mass layers can be continuous or discretized, and have varying thicknesses and shapes for sections and/or segments in the mass layer.
    • 用于扩展振动和声辐射控制的主动/被动吸收器主要包括两层。 第一层具有每单位面积的低刚度,其允许在垂直于其主平面的方向上的运动。 第二层主要是质量层。 这两个组合层具有接近主要结构之一的共振频率。 耦合系统的动态行为使主动/被动吸收体成为被动吸收体; 然而,第一层可以被电致动以在垂直于其主平面的方向上引起运动。 该添加性质诱导和/或改变质量层的运动,并因此改善主动/被动吸收体系的动态特性。 主动/被动吸收器可以具有多个质量层和多个弹性层,一个在另一个之上。 此外,质量层可以是连续的或离散的,并且对于质量层中的区段和/或段具有变化的厚度和形状。