Statistical energy analysis by finite elements for middle frequency vibration

  • Yan H
  • Parrett A
  • Nack W
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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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  • Harold Yan

  • Alan Parrett

  • Wayne Nack

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