Lee Heow Pueh, Kumar Sanjay, Garg Saurabh, Lim Kian Meng
Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore.
Appl Acoust. 2022 Jun 15;194:108809. doi: 10.1016/j.apacoust.2022.108809. Epub 2022 May 6.
The aviation industry has seen dramatic growth over the decades till the recent disruption due to the COVID-19 pandemic. Moreover, long-haul routes with a distance of more than 4000 km are common for major airlines worldwide. Therefore, aircraft cabin noise assessment is essential, especially in long-haul flights, for passenger and flight crew health wellness. In this paper, the cabin noise of five wide-body aircraft, namely Airbus A330-300ER, A350-900, A380-800, and Boeing B777-200ER and B787-900, was recorded using a calibrated in-house developed smartphone application. The sound pressure levels of in-cabin noise have been measured on two different decibel scales, namely, A-weighted [dB(A)] and C-weighted scales [dB(C)]. The sound pressure levels of Airbus A380-800 were lowest among selected models, while the in-cabin pressure level values of Airbus A350-900 were maximum. However, the difference in decibel levels between the aircraft is minimal as it is within 3 dB.
在最近因新冠疫情而陷入混乱之前的几十年里，航空业经历了显著的增长。此外，对于全球各大航空公司来说，航程超过4000公里的长途航线很常见。因此，飞机客舱噪音评估至关重要，尤其是在长途航班中，这关乎乘客和机组人员的健康。在本文中，使用一款经过校准的内部开发的智能手机应用程序，记录了五架宽体飞机的客舱噪音，这五架飞机分别是空客A330 - 300ER、A350 - 900、A380 - 800，以及波音B777 - 200ER和B787 - 900。客舱噪音的声压级已在两种不同的分贝标度上进行了测量，即A加权[dB(A)]和C加权标度[dB(C)]。在选定的机型中，空客A380 - 800的声压级最低，而空客A350 - 900的客舱压力级值最高。然而，不同飞机之间的分贝水平差异很小，在3分贝以内。
