A modal impedance-based statistical energy analysis for vibro-acoustic analysis of complex systems having structural uncertainty

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Atıf İçin Kopyala

SEÇGİN A., Kara M., Ozankan A.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE, cilt.233, sa.6, ss.1972-1989, 2019 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 233 Sayı: 6
• Basım Tarihi: 2019
• Doi Numarası: 10.1177/0954406218780894
• Dergi Adı: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.1972-1989
• Anahtar Kelimeler: Mid frequency, high frequency, uncertainty, complex systems, statistical energy analysis, COUPLING LOSS FACTORS, HYBRID FINITE-ELEMENT, DUAL FORMULATION, INFORMATION, PLATES, FLOW
• Dokuz Eylül Üniversitesi Adresli: Evet

Özet

A modal impedance-based statistical energy analysis for point, line, and area connected complex structural-acoustic systems is introduced. The proposed methodology is applied to perform mid- and high-frequency vibro-acoustic analysis of a cabinet model. The cabinet is composed of several composite plates with local mass variability simulating structural uncertainty, isotropic beams, and an acoustic enclosure. The method uses point mobilities, which are determined using modal parameters obtained by finite element method, to define line and area mobilities via dimension reducing principle. The methodology presented here is successfully verified by several numerical and experimental Monte Carlo computations. With this study, conventional statistical energy analysis is improved for mid-frequency vibro-acoustic analysis of complex systems.