Investigation of the vibration transmission through a lightweight junction with elastic layer using the finite element method

摘要

When the Swedish construction code in 1994 allowed wooden multi-storey buildings, thisrntype of lightweight structures became popular due to low cost and ease of construction1. Arndrawback in those buildings is disturbing vibrations and noise propagating in thernconstruction, especially through the junctions - for example between floor and wall. Thesernstructures should not just meet the demands of structural integrity but also the dynamicrnrequirements. Therefore, gaining knowledge about their dynamic behaviour is of crucialrnimportance. To reduce noise and vibration through the junctions, rubber foam materialsrnmay be introduced between the walls and the floors and ceilings1. Hence, finite elementrnsimulations are useful as a prediction tool during the design phase. In this study, thernproperties of a junction when introducing a rubber foam material - Sylodyn® - in betweenrnwere investigated by means of the finite element method using the commercial softwarernAbaqus. The flanking transmission was specifically analysed.