Feed motion guides driven by linear motor in NC machine for industrial applications mostly adopt mechanical support and they easily produce wear because of impact and high speed. For above characteristic and the requirement of machining accuracy, application of maglev supporting technology in NC Machine is raised. By analyzing the structure of maglev feed motion guide, the mechanical model of s...

The superconducting magnetically levitated transport (Maglev) system is conceptualized as a next-generation high-speed transportation system. For practical use, it is important to achieve adequate ride comfort particularly in high-speed running. Maglev vehicles are composed of lightweight car bodies and relatively heavy bogies which are mounted with devices such as superconducting magnets (SCMs...

The digital information revolution has brought profound changes in our society and our lives. The many advantages of digital information have also generated new challenges and new opportunities for innovation. Broadband internet and wireless network environments which have made considerable progress in recent years offer many opportunities to deliver and to exchange information. The fair uses o...

This paper presents two novel six-axis magnetic-levitation (maglev) stages capable of nanoscale positioning. These stages have very simple and ompact structures, which is advantageous to meet the demanding positioning requirements of next-generation nanomanipulation and nanomanuacturing. Six-axis motion generation is accomplished by the minimum number of actuators and sensors. The first-generat...

The study mainly focuses on the development of three model-free control strategies including a simple proportional-integral-differential (PID) scheme, a fuzzy-neural-network (FNN) control and an adaptive control for the positioning of a hybrid magnetic levitation (maglev) system. In general, the lumped-parameters dynamic model of a hybrid maglev system can be derived from the energy balance. In...

According to tradition, permanent maglev cannot achieve stable equilibrium. The authors have developed, to the contrary, two stable permanent maglev impeller blood pumps. The first pump is an axially driven uni-ventricular assist pump, in which the rotor with impeller is radially supported by two passive magnetic bearings, but has one point contact with the stator axially at standstill. As the ...

The superconducting magnetically levitated transport (Maglev) system is a focus of interest as a future mode of transport at high speeds of over 500 km/h. Using a computational model of the vertical and pitching motions of a Maglev train, a study is conducted on the effectiveness of a maximum force control of the primary suspension using electromagnetic forces output by a bogie-integrated linea...

⎯A permanent magnet linear synchronous motor (PMLSM) for a high temperature superconducting (HTS) maglev system has been studied, including the motor structure, control strategy, and analysis techniques. Finite element analysis (FEA) of magnetic field is conducted to accurately calculate major motor parameters. Equivalent electrical circuit is used to predict the drive’s steady-state characteri...

The maglev system is a technology that uses the repulsive force between magnets to float or levitate an object vehicle. Maglev trains use electromagnets counter gravitational of object, so can in air. With this technology, resulting loss workpiece and base be eliminated. used train Electromagnetic Suspension (EMS). research began by modeling form state space. Furthermore, stability model has be...

Work has been conducted to develop REBCO (Rare-Earth Barium Copper Oxide) magnets for Maglev. REBCO is one of several high temperature superconducting materials and has a high current density at high temperatures and in high magnetic field environments. The REBCO coated conductor will make it possible to raise the operating temperature of on-board magnets without increasing the coil weight. Sin...