Aircraft airframe noise: Computational aeroaoustics of bogie noise

Last updated on April 5, 2022

Airframe noise is one of the main noise sources during the approach phase. Flight tests have shown that for large aircraft the main landing gear (MLG) is a dominant airframe noise source . The design of landing gear is primarily focussed on its mechanical function, which results in a shape that is not very aerodynamic. This creates a lot of separated and turbulent flow and thus a lot of aeroacoustic noise. Wind tunnel tests have revealed that the bogie beam as one of the most important noise sources of the main landing gear. The main objective of the project is to investigate the influence of bogie beam inclination angle on the flow field around the main landing gear and the noise generated by this flow.

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Xin Zhang