Oversizing often happens when engineers try to match the inertia between the load and the motor rotor, so that they can tune the drive’s velocity, torque or position loop relatively tightly to meet ...

The case of a pulsating-load testing machine shows how to ballpark qualities that are important for deploying electric motors. Crankshafts in running internal-combustion engines pulsate as well as ...

One of the challenges that face motion-control engineers is how to properly select a motor. If the motor is undersized or too small, it will not handle load. If the motor is oversized or too large, ...

Some carefully selected analogies might make the reasons for this clearer. Is it easier or harder to control the speed of a motor cycle or a heavily loaded truck? Most people would correctly surmise ...

The operating efficiency of linear drives is of growing concern to machine designers. Here's a look at three common linear actuators — linear induction motors, rolled and ground ball screws, and rack ...

When it’s time to specify a high-performance motor that offers both precise positioning and cost efficiency, stepper motors offer many advantages over DC motors thanks to their brushless technology.