Resilient and Scalable Microtextured Coatings for Quiet and Efficient Urban Air Mobility

Noise pollution is a rising concern due to the development of Urban Air Mobility. Researchers at Purdue University have developed a microtextured coating for urban air mobility vehicles to reduce noise pollution for air vehicles at low altitudes. By coating propellers and rotors with this microtextured coating, air has a smoother flow over the blades, which reduces noise pollution. With this innovation the feasibility of future urban air mobility vehicles is increased.

Advantages:

-Lower noise pollution of 2-4 decibels

-Increased feasibility of Urban Air Mobility

-Large Scale Fabrication

Applications:

-Urban Air Mobility vehicles

-Aircraft noise reduction

-Wind turbine noise reduction

-Drag reduction

Technology Validation: This technology has been validated in lab testing with cylinders coated with and without micro-structures to show the difference in sound levels up to a 2-4 decibel reduction at high speeds.

TRL: 3

Intellectual Property:

Keywords: Acoustic noise cancellation, Aeronautics, Fibonacci quasicrystal, Mechanical Engineering, micro-structures, Urban Air Mobility (UAM)