Impact sound transmission, through a floating floor on a concrete slab

In this paper a theoretical model to predict bending wave transmission thro ugh parallel plates connected by a resilient line is presented, The model i s based on the interaction of semi-infinite plates intersecting along an in finite boundary, A full model is developed together with some approximation s for the more common cases, The results of the model are then used in a st atistical energy analysis (SEA) framework to predict transmission through a chipboard floating floor attached to battens which in turn are supported o n a concrete floor, Acoustic transmission through the cavities is also cons idered, The results show that transmission through the battens is the most important path when there is no resilient layer but that this path is insig nificant if any resilient layer is present, A comparison between measured a nd predicted results gave generally good agreement except at high frequenci es when a resilient layer was present, (C) 2000 Elsevier Science Ltd, All r ights reserved.