At velocities below 100 km/h and during stops the Transrapid vehicle has to be supplied with energy by an external source for the on board power consumers like levitation magnets and climate control. A new contactless inductive power supply system, IPS, was developed for the German Transrapid project in Munich on behalf of the BMVBS. With IPS the power supply will work without mechanical contac...

All moving objects possess six degrees of freedom – three linear and three rotary. The task of a linear motion guideway is to eliminate, as closely as possible, five of these degrees of freedom, leaving a single rotary or linear axis of motion. Air bearings are the purest and highest performance means of defining linear or rotary motion, and have substantial advantages over conventional mechani...

This note presents a unified framework to derive nonlinear state and output feedback controllers for magnetically levitated (Maglev) vehicles with controlled dc electromagnets, referred to as electromagnetic suspension systems. The theoretical exposition, based on the Taylor series expansion solution to the Hamilton–Jacobi–Isaacs inequality, is followed by an assessment of some of the practical...

In order to diagnose the unbalance of aerostatic guideways, displacement and acceleration sensors were used to measure the vibration signals of the unbalance of the aerostatic guideways caused by the gas fluctuation. The frequency characteristics for the unbalance of aerostatic guideways caused by gas fluctuation has been extracted from the measured signals by power spectral density, and the ba...