611 Modeling of effects of floor carpet on vibration and structure-borne noise transmission

Abstract

The behavior of a carpet compS )sed Qf two layers is s血 died． The vibrati measurements of the panel With or Without the carpet describes that it works as wG 豆 l as viscous damplng ． We have developed an FE model of the carpet that is based spring ， mass and d per system ． The FE model is che 。ked by parameter stUdy and predi 。tion of the behavior of another caIpet ． Alld the model is also app 駈 ed to prediot the change ofstmc 加 re − bome noise transmiss 量 on ofan L − shaped struc 加 re due to thc placement of the carpet using FEM combined with SEA ． A palt of an automotive car body is also used to teSt the FE model ． Key MerdS：Vibration ofCondnuous System ， Struc 加 reborne noise transmission