03.2 - Experimental Aerodynamics
STUDY OF THE FEASIBILITY OF ACOUSTIC LINERS INSIDE THE BEAM THAT INTERACTS WITH A UAV DRONE ROTOR
S. Montoya-Ospina¹, R. Gojon¹, H. Parisot-Dupuis¹, F. Simon, DMPE-ONERA, France; ¹ISAE-SUPAERO, France
This paper addresses the growing demand for advancements in rotorcraft technology by proposing the concept of acoustic liners integrated within surfaces surrounding a rotor. The study is involving a rotor working in installed conditions, where a beam simulates the connection between the propulsion system and the airframe of a classical drone configuration. The concept proved to be effective in reducing noise at the harmonics of the BPF.