作者: Rudolf Sommerhalder
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摘要: A plate-component (1) which can be used for airborne-sound insulation has chambers (5, 6) filled with a pulverulent or granular, e.g. metallic material, whose chamber walls (2, 3, 4) at least partly are formed by flexible material. Chambers small in the vertical direction, but horizontal direction form long channels. This construction not only leads to an increase sound of board joined component 1 corresponding weight per unit area, it is also possible prevent coincidence breakdowns range 100-3000 Hz.