Aeroacoustic optimization of MAV rotors

The more restrictive airspace regulations force drone manufacturers to take into account the noise emitted by during design phase, along with its aerodynamic performance increase flight time. A Non-Linear Vortex Lattice Method (NVLM), coupled Farassat Formulation-1A of Ffowcs-Williams and Hawkings acoustic analogy is used evaluate aeroacoustic MAV rotors. Pymoo, a Python-based optimization framework, employed modify geometry, extract set Pareto optimal solutions. two objectives are Figure-of-Merit Sound Pressure Level Blade Passing Frequency tone for microphone located at far-field distance 1.62 m 30[Formula: see text] below rotor plane. approach proposed in this paper takes up ten different parameters, ranging from twist chord distributions, rake skew angles.