Electrical Machinery

User Stories

	A New Approach to Railgun Operation Benet Laboratories, US Army Research Engineering and Development Command, Watervliet, NY Railguns-which propel a projectile using electromagnetic forces´ promise to revolutionize projectile launchers. To adequately design them, researchers must...
	Taking a Bearing on Quality ASM Assembly Automation Ltd of Hong Kong Porous air bearings are a critical element of high-precision machinery thanks to their essentially frictionless operation, high speed, and accuracy. Thanks to...

	Linear Electric Motor of Moving Coil Type Linear electric motors (LEMs) are electromechanical devices which produce motion in a straight line directly, without the use of a mechanism to convert rotary motion to linear motion. The benefit over conventional rotary-to-linear...
	Simulating a Generator in 3D The generator analyzed in this model consists of a rotor with permanent magnets and a nonlinear magnetic material inside a stator of the same magnetic material. The model calculates the static magnetic fields inside and around the...
	The Electromagnetic Fields from a Railgun A Railgun is a type of magnetic accelerator gun that utilizes an electromagnetic force to propel an electrically-conductive projectile. Current flowing through the rails sets up magnetic fields perpendicular to each other, forcing the...
	Simulating a Generator in 2D In this model, a rotor with permanent magnets and a nonlinear magnetic material rotates within a stator of the same magnetic material. The generated voltage in windings around the stator is calculated as a function of time. COMSOL...
	Simulating a Generator in 2D using Periodic Boundary Conditions This model of a generator includes an ordinary differential equation (ODE) for the mechanical dynamics and computation of the torque resulting from the magnetic forces. In addition, it exploits symmetry to reduce the model size to 1/8...