Patent — available for licensing
Active Turbulence Suppression System for Electric Vertical Take-Off and Landing (eVTOL) vehicles
A NASA invention available to explore as a licensing opportunity.
About this technology
Overview
Electric Vertical Take-Off and Landing (eVTOL) aircraft, conceptualized to be used as air taxis for transporting cargo or passengers, are generally lighter in weight than jet-fueled aircraft, and fly at lower altitudes than commercial aircraft. These differences render them more susceptible to turbulence, leading to the possibility of instabilities such as Dutch-roll oscillations. In traditional fixed-wing aircraft, active mechanisms used to suppress oscillations include control surfaces such as flaps, ailerons, tabs, and rudders, but eVTOL aircraft do not have the control surfaces necessary for suppressing Dutch-roll oscillations. NASA Ames has developed a novel approach for actively controlling Dutch-roll oscillations of an eVTOL aircraft by using existing outboard propellers to dampen oscillations. This novel technology avoids the need to add hardware or change the design of eVTOL vehicles to address the negative effects of turbulence.