Multi-walled sheet comprising acoustic resonators: Fid-Bau Portal

Multi-walled sheet comprising acoustic resonators

THIAGARAJAN CHINNIAH / MAAS CHRISTIANUS JOHANNES JACOBUS / GERVAIS ERIC / VAN DEN BROEK PETER

A multi-wall sheet comprising: a wall extending along a z-axis and along an x-axis, where the x-axis is orthogonal to the z-axis, where the wall comprises plastic, and where the wall comprises an upper wall (2) and a lower wall (4), where the lower wall (4) is spaced from the upper wall (2) along a y-axis, and where the y-axis is orthogonal to the z-axis and the x-axis; a rib extending along the z-axis and along the y-axis between the upper wall (2) and the lower wall (4), where the rib comprises plastic, and where the rib comprises a first rib (6) and a second rib (8), where the second rib (8) is spaced from the first rib (6) along the x-axis, and where the upper wall (2), the lower wall (4), the first rib (6) and the second rib (8) define a cavity (10) having a cavity of width X and a cavity of height Y; and an acoustic resonator (100) in the cavity (10), where the acoustic resonator (100) extends along the z-axis, comprises plastic, and comprises a first portion (110) extending from the upper wall (2) into the cavity (10) in a negative y-axis direction, a second portion (120) extending from the first portion (110) in a positive x-axis direction, and a third portion (130) extending from the second portion (120) in a positive y-axis direction.

一种多壁片材，包括：沿着z轴延伸并且沿着x轴延伸的壁，其中x轴与z轴正交，其中壁包括塑料，并且其中壁包括上壁(2)和下壁(4)，其中下壁(4)沿着y轴与上壁(2)间隔开，并且其中y轴与z轴和x轴正交；肋，沿着z轴延伸并且沿着y轴在上壁(2)与下壁(4)之间延伸，其中肋包括塑料，并且其中，肋包括第一肋(6)和第二肋(8)，其中第二肋(8)沿着x轴与第一肋(6)间隔开，并且其中，上壁(2)、下壁(4)、第一肋(6)和第二肋(8)限定具有宽度X空腔和高度Y空腔的空腔(10)；以及在空腔(10)中的声谐振器(100)，其中声谐振器(100)沿着z轴延伸，包括塑料，并且包括第一部分(110)、第二部分(120)和第三部分(130)，第一部分(110)在负y轴方向上从上壁(2)延伸到空腔(10)中，第二部分(120)在正x轴方向上从第一部分(110)延伸，第三部分(130)在正y轴方向上从第二部分(120)延伸。

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