首页 | 本学科首页   官方微博 | 高级检索  
     


Low frequency impact sound transmission in dwellings through homogeneous concrete floors and floating floors
Authors:A. Neves e Sousa  B.M. Gibbs
Affiliation:aICIST, DECivil, IST, Technical University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;bAcoustics Research Unit, School of Architecture, University of Liverpool, L69 3BX, UK
Abstract:An experimentally validated analytical model has been developed in order to investigate the effect on impact sound transmission at low frequencies of location of the impact, type of floor, edge conditions, floor and room dimensions, position of the receiver and room absorption. The model was developed in order to allow rapid repeated calculations necessary for a parametric survey, described in a companion paper. The analytical model uses natural mode analysis to predict the sound field generated in rectangular rooms by point sound sources and the point excitation of homogeneous rectangular plates with different edge conditions. A floor-room model of the sound field generated in a room by a vibrating floor also has been derived. Laboratory and in situ measurements confirm that the models can be used to estimate impact sound transmission at low frequencies. The approach applies to homogeneous simply supported base plates of uniform thickness with homogenous floating floors, which again were experimentally validated in the laboratory and in situ.
Keywords:Impact sound transmission   Low frequency
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号