Amazon is selling a pack of 25 dog toys for $21 that will keep your pet busy for months

The Aipper 25-Pack of Chew Toys is only $21 at Amazon. That comes out to less than a dollar per toy. There may be no better ...

Vibration Plates Are Trending. But Do They Actually Work?

The jiggly, quaking contraption is eye-catching—a natural social media star. But is the science behind vibration plates on ...
IEEE

Torsional Vibration Analysis and Optimization Design of the Surface PM Synchronous Machine With Reduced Torque Ripple

Abstract: In this article, an efficient design procedure for the surface PM synchronous machine (SPMSM) with reduced electromagnetic torque ripple is proposed. The method of changing winding ...
IEEE

Fast Calculation of Electromagnetic Vibration of Switched Reluctance Machines Considering Magnetic Saturations and Simply Supported Constraints

Abstract: An analytical method (AM) is developed to evaluate electromagnetic vibrations of switched reluctance machines (SRMs). Based on the nonsaturated air-gap flux densities obtained from winding ...