An efficient sound source determination process based on half-space boundary element method

SEÇGİN A., SARIGÜL A. S.

INTERNATIONAL JOURNAL OF MECHANICS AND MATERIALS IN DESIGN, cilt.6, sa.1, ss.17-25, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 6 Sayı: 1
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1007/s10999-010-9113-7
  • Dergi Adı: INTERNATIONAL JOURNAL OF MECHANICS AND MATERIALS IN DESIGN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.17-25
  • Anahtar Kelimeler: Boundary element method, Half space analysis, Sound source determination, Refrigerator
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

In this study, sound source localization and identification of a refrigerator were accomplished by using the half-space boundary element method (BEM) based on surface velocity measurements. Surface velocities of the refrigerator were measured by a vibration test set-up; and two main dominant excitation frequencies were determined. The velocity data were fed to half-contact BE model of the refrigerator built in our "in-house" BEM computer code. The code calculated surface acoustic pressure distributions. The surface pressures exposed the location of sound sources of the refrigerator. Near-field sound radiation pattern of the localized sources were obtained by the surface pressure-input to the computer code.