Article
Influence of VIP Floor Setups on Noise Reduction in Aircraft Cabin (en)
* Presenting author
Abstract:
In today's VIP aircraft, high demands are placed on acoustic comfort compared to standard aircraft, while the sound absorption is lower than in standard cabin layouts with many seats and passengers. For this reason, a larger mass of noise control components is used in the VIP cabin to reduce cabin noise. However, this additional weight means that more fuel is consumed, which affects the efficiency of the aircraft. The joint project ENTIRETY (Engineered Tailored Tranquility) aims to develop technologies to reduce noise levels in VIP cabins while reducing the overall weight of the cabin. As part of this project, this research presents how different floor carpet configurations affect sound levels in the cabin. The measurement campaigns were conducted at HCAT (Hamburg center for Aviation Training) in August 2023 with different carpet configurations such as different VIP carpet with foam layer and VIP carpet with mass layer as well as foam layer. In the measurement, the sound intensity and overall sound pressure of the cabin were measured for the different carpet configurations. The results of this study will make it easier to choose carpet configurations in VIP cabins that are both lightweight and reduce the sound level in the cabin.