Energy harvesting

May 21, 2008 - 10:00am

Canada’s National Research Council has won a patent on “an active and adaptive rotor-blade control system called Smart Spring,” which is designed to reduce the noise and vibration when rotor blades interact with the vortices shed by the tip of the preceding blades. Previous engineering approaches, according to NRC, have attempted to alter the varying aerodynamic load on the blades to reduce the onset of this vibration.

April 3, 2007 - 8:55am

Reducing vibration and noise is key to the goal of gaining public acceptance of the rotorcraft as a routine mode of transport. A Boeing team has now successfully made use of advanced materials to develop and test a new helicopter rotor that could go a long way toward unlocking the vehicle’s potential.

 
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