Sound radiation in a half space with impedance surface
JOURNAL OF VIBRATION AND CONTROL, cilt.20, sa.16, ss.2552-2560, 2014 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 20 Sayı: 16
- Basım Tarihi: 2014
- Doi Numarası: 10.1177/1077546313487759
- Dergi Adı: JOURNAL OF VIBRATION AND CONTROL
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.2552-2560
- Anahtar Kelimeler: Boundary element method, dilating sphere, half space, passive noise control, sound radiation
- Dokuz Eylül Üniversitesi Adresli: Evet
Özet
This study deals with sound radiation of a vibrating body in a half space. Half space may be formed by a rigid, anechoic or specifically by an impedance surface. The practical application of the impedance surface may be the sound field determination of a machine sitting on a floor, coated with an isolation material, for passive noise control. The study is based on the solution of Helmholtz integral equation by the boundary element method (BEM). A BEM code developed for general vibro-acoustic applications is used for numerical solutions. Examples include sound sources taken from theory and daily life. Some benchmark studies and real life applications are involved.