There is a growing demand for magnetic suspension, combined with electromagnetic propulsion, especially in the field of high accuracy twoor three-dimensional positioning. No mechanical wear, dust free operation, and (ultra) high vacuum compatibility are strong motivations to at least consider the application of magnetic bearings. This paper presents a novel Planar Active Magnetic Bearing [PAMB]...

1 Problem In two recent e-prints, Tuval and Yahalom proposed " electromagnetic spaceships " based on the net force exerted on a pair of time-dependent current loops [1], or a time dependent current loop and a permanent magnet [2]. Show that rocket propulsion (net gain of mechanical momentum of an isolated system) is possible in the first example, but not in the second. Ampère argued [3] that th...

Background: A recently discovered mechanism of magnetic propulsion of a liquid metal in the toroidal magnetic eld of tokamaks (December of 1998) enables intense stationary liquid lithium (Li) streams covering the plasma facing surface of the vacuum chamber. There are several attractive properties of such a regime. These are presented, together with the possible issues, experimental foundations ...

Secondary propulsion methods for high-speed hyperloop transportation are sparsely researched. essential to quickly, efficiently, and safely get a pod up its target speed from stationary state. In this article, we propose analyze the feasibility of form electromagnetic (EM) secondary propulsion, called railgun, commonly used in modern-day artillery technology ammunition launching. We assess two ...

A NASA-funded research effort has been underway at the Lockheed Martin Advanced Technology Center in Palo Alto and at California State University in Long Beach to develop and test a recently published theory that Newton's equation of motion can be derived from Maxwell's equations of electrodynamics as applied to the zero-point field (ZPF) of the quantum vacuum. In this ZPF-inertia theory, mass ...

Dynamic stability analysis of superconducting electro-dynamic maglev train under lateral and yawing motion condition is the key research content. The novel three-dimensional electromagnetic model integrated linear synchronous motor in with operation proposed, which can not only simultaneously achieve propulsion, levitation guidance performances vehicle, but also analyze dynamic performance cond...

This contribution presents a short review of electric propulsion (EP) technologies for satellites and spacecraft. Electric thrusters, also termed ion or plasma thrusters, deliver a low thrust level compared to their chemical counterparts, but they offer significant advantages for in-space propulsion as energy is uncoupled to the propellant, therefore allowing for large energy densities. Althoug...