Energy Boundary Element Method for Computing High Frequency ...

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Presentation Outline •Development of EBEM •Technical background •Validation cases (automotive & aircraft) •Airborne noise analysis combining EBEM with EFEM •Integration with Virtual Lab •Conclusions
Development of EBEM Originally EBEM was developed <strong>for</strong> propagating acoustic energy in the field from EFEM acoustic intensity results EFEM model Structural model External/Internal fluid EFEM results: Structural vibration, Interior acoustic energy Radiated acoustic intensity Intensity EBEM results (external medium): Acoustic energy Acoustic intensity
Page 1: Energy Boundary Element Method for
Page 5 and 6: Technical Background Governing Inte
Page 7 and 8: Compared to SEA… SEA uses artific
Page 9 and 10: Windshield Roof Automotive Validati
Page 11 and 12: Windshield Roof Glass Door Source 1
Page 13 and 14: Validation ~300 ft Insertion loss c
Page 15 and 16: EBEM - EFEM Case Study: Internal no
Page 17 and 18: Magnitude of difference between tes
Page 19 and 20: EFEM - models the structure and the
Page 21 and 22: EBEM toolbox Integration with VL
Page 23: Summary •EBEM is a high frequency

Energy Boundary Element Method for Computing High Frequency ...

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