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The wing is the main transfer path for engine-induced vibrations into the fuselage. Therefore, investigating the high-frequency structural behavior of wings is important for cabin acoustics. In cooperation with Airbus, DLR has conducted a vibroacoustic experiment on an actual A320 wing. The goals were to create an updated numerical model of the wing and to quantify the vibrational power input into the wing suspension utilizing structural intensity calculated from measurement data. Additionally, a novel multi-axial excitation system, capable of performing an excitation about multiple axes simultaneously, has been utilized. With this system a realistic wing response due to engine-induced vibrations during in-flight operation has been generated.

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Experimental Vibroacoustic Characterization of an A320 Wing Utilizing a Controlled Shaker System for Artificial Engine-Vibration Excitation

  • 章节

  • 发表日期：

    2026年

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  • Marco Norambuena,
  • Sebastian F. Zettel,
  • Ray D. Dewald,
  • René Winter

摘要

The wing is the main transfer path for engine-induced vibrations into the fuselage. Therefore, investigating the high-frequency structural behavior of wings is important for cabin acoustics. In cooperation with Airbus, DLR has conducted a vibroacoustic experiment on an actual A320 wing. The goals were to create an updated numerical model of the wing and to quantify the vibrational power input into the wing suspension utilizing structural intensity calculated from measurement data. Additionally, a novel multi-axial excitation system, capable of performing an excitation about multiple axes simultaneously, has been utilized. With this system a realistic wing response due to engine-induced vibrations during in-flight operation has been generated.