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New balance platform module in the BMW acoustic wind tunnel

Potential for optimization of the interior noise

Neue Modulwaage im Akustikwindkanal von BMW

Potenziale für die Innengeräuschoptimierung

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Abstract

Wind noise plays a deciding role today in reaching a high level of interior comfort within premium vehicles. Until now, wind noise was optimized using small incremental changes in such a manner that no subjectively measured noise sources had a large influence on the passengers. In the concept phase of the development of a vehicle, while the layout of the vehicle geometry is being developed, the incorporation of new testing and simulation techniques is essential. Above all the correlation between flow effects and noise must be determined. The BMW Group acoustic wind tunnel was used in cooperation with the firm Horiba ATS to develop and install a balance module that opens entirely new possibilities to solve for aeroacoustic effects.

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References

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    Zeller, P.; Zeitler, A.: Future approaches for vehicle acoustics and community noise. 3rd Styrian Noise, Vibration & Harshness Congress, June 2–3 2005, Graz, Austria

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    Hucho, W.-H.: Aerodynamik des Automobils. 5. Auflage 2005, Wiesbaden, Vieweg Verlag

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    Kaltenhauser, A.: Aeroakustik-Chance oder Risiko für den Leichtbau? Tagung Fahrzeugakustik im HdT. 8.–9. Februar 2005, Essen

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Kaltenhauser, A., Kolb, S., Ullrich, F. et al. New balance platform module in the BMW acoustic wind tunnel. ATZ Worldw 108, 11–14 (2006). https://doi.org/10.1007/BF03225199

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Keywords

  • Particle Image Velocimetry
  • Wind Tunnel
  • Hydraulic Lift
  • Interior Noise
  • Balance Module