Aircraft floor assemblies with discontinuous coupling between layers

A finished floor assembly covering a floor area of an aircraft, the finished floor assembly comprising:

• a subfloor from which noise radiates due to vibrations transmitted by an aircraft structure;
• a padding assembly for attenuating the noise, the padding assembly comprising:
• a first pad layer abutting the subfloor;
• a second pad layer adjacent to the first pad layer;
• and
• a first plurality of discontinuous couplings laterally separated from each other along the floor area by void portions, the first plurality of discontinuous couplings securing the first pad layer to the second pad layer, wherein the first pad layer and the second pad layer are in contact at the void portions;
• and
• a finish flooring layer disposed overtop the padding assembly;
• the padding assembly further comprising:
• a third pad layer disposed between the finish flooring layer and the second pad layer;
• and
• a second plurality of discontinuous couplings separated from each other by a second group of void portions, wherein the second plurality of discontinuous couplings secure the second pad layer to the third pad layer.