Aircraft airframe noise: Noise control of landing gear using pereforated fairings
Last updated on April 5, 2022
Landing gear noise can be the dominant component of airframe noise, especially for larger aircraft. The interaction of the airflow with protrusions and cavities gives rise to unsteady flow phenomena constituting a potent sound generating mechanism. Shielding landing gear components with fairings and thereby preventing this interaction has been considered before. High speed flow deflection onto other components and fairing self-noise are disadvantages of these fairings. Bleeding air through the fairings by making them porous can reduce the impact of these effects and result in a noise reduction.
