Stability of unmanned aerial vehicles in heavy winds can be improved through rotor placement and angle. Is it a bird? Is it a plane? The prevalence of multi-rotor drones has increased dramatically in ...

Let's assume a motor with three Hall sensors, but what follows can be applied to whatever number of Hall sensors. The Pittman motor is equipped with three Hall sensors at 120-degrees spacing and with ...

Oil-whirl instability in rotor bearings was discovered by General Electric engineer Burt Newkirk in the 1920s. Since then, much has been written about design methods to reduce its harmful effects. Yet ...

The stable fixed point, the controlling fixed point, the stability boundary, the fault-on trajectory and the post-fault trajectories shown in the state space. Critical Clearing Time (CCT) refers to ...