Sound attenuating structures
AssigneeRSM Technologies Limited
InventorsZhi Yu Yang, Weijia Wen, Ping Sheng, Xixiang Zhang
Life of this patent
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Abstract
There is disclosed a sound attenuation panel comprising, a rigid frame divided into a plurality of individual cells, a sheet of a flexible material, and a plurality of weights. Each weight is fixed to the sheet of flexible material such that each cell is provided with a respective weight and the frequency of the sound attenuated can be controlled by suitable selecting the mass of the weight.
Claims16
A sound attenuation panel comprising,
- a substantially acoustically transparent planar, rigid frame divided into a plurality of individual cells, wherein said plurality of individual cells are generally two-dimensional cells,
- a sheet of a flexible material fixed to the rigid frame, and
- a plurality of weights wherein each said weight is fixed to said sheet of flexible material such that each cell is provided with a respective weight;
- whereby resonant frequency of said sound attenuation panel is defined by the planar geometry of each said individual cell, the flexibility of said flexible material and said respective weight thereon.
A sound attenuation structure comprising a plurality of panels stacked together wherein each said panel comprises a rigid frame divided into a plurality of individual cells, a sheet of a flexible material, and a plurality of weights wherein each said weight is fixed to said sheet of flexible material such that each cell is provided with a respective weight;
- whereby resonant frequency of the sound attenuation structure is defined by the planar geometry of each said individual cell, the flexibility of said flexible material and said respective weight thereon.
A sound attenuation structure comprising,
- a substantially acoustically transparent planar, rigid frame divided into a plurality of individual cells, a sheet of a flexible material, and a plurality of weights wherein each said weight is fixed to said sheet of flexible material such that each cell is provided with a respective weight, and
- a sound absorption panel,
- whereby resonant frequency of the sound attenuation structure is defined by the planar geometry of each said individual cell, the flexibility of said flexible material, and said respective weight thereon.
A sound attenuation panel comprising,
- a substantially acoustically transparent planar, rigid frame divided into a plurality of individual cells,
- a sheet of a flexible material fixed to the rigid frame, and
- a plurality of weights wherein each said weight is fixed to said sheet of flexible material such that each cell is provided with a respective weight,
- wherein said plurality of individual cells are two-dimensional cells.
Dependencies are inferred from the claim text.