Statistical energy analysis by finite elements for middle frequency vibration

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Abstract

Statistical energy analysis (SEA) is commonly used in industry to predict high-frequency vibrational response of structures. Since only local modes are used in SEA, only high-frequency responses can be predicted. This study extends SEA to the middle-frequency region by additionally using global modes. Methods using impedance matrices that can be found by NASTRAN are developed. Then the results are post processed to determine coupling loss factors.

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Yan, H., Parrett, A., & Nack, W. (2000). Statistical energy analysis by finite elements for middle frequency vibration. Finite Elements in Analysis and Design, 35(4), 297–304. https://doi.org/10.1016/S0168-874X(99)00071-2

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