This paper investigates the problem of the modeling and robust control for a new coaxial tilt-rotor unmanned aerial vehicle (CTRUAV). The CTRUAV is composed of two pairs of coaxial tilted rotors at ...

Abstract: The estimation of rotor position is fundamental for the commissioning of magnetically-levitated drives. The sensors required for this measurement must be close to the rotor, often requiring ...

The sky is falling! A flap from a Delta Airlines plane plummeted from the sky and onto a driveway in North Carolina early ...