It uses technology developed for the Sandia coilgun, an electromagnetic launcher designed to accelerate projectiles to several kilometers per second. The Segmented Rail Phased Induction Motor (SERAPHIM) is a compact, pulsed linear induction motor (LIM) offering a unique capability for very high speed train propulsion. We use the design data of Miyazaki Test Line for numerical examples. Also, we analyze the distribution of magnetic lines of force by the same method as applied to the linear induction motor. In this paper, we analyze the characteristics of repulsive magnetic levitated trains by a space harmonic method taking into account the influences of end effect and propulsion coil. In deriving the steady-state periodic solution, however, the end more » effect has not been taken into account and the effect of the superconducting propulsion coil on the levitation characteristics has never been discussed. Various measures have been proposed to suppress the negative damping force, such as the installation of damper sheet or damper coil, deflected magnetization of superconducting coil, and some polarity arrangement of superconducting coils. Many theoretical studies have been conducted associated with the experiments and it has been pointed out that the magnetic damping force may sometimes become negative. Experiments now under way in Miyazaki Test Line of Japanese National Railway are drawing particularly strong attention. Many schemes of repulsive magnetic levitated railways are now under intensive study all over the world. It should be noted that the two systems behave in the same way as regards the magnet control and the linear induction =, number = , Also, we show that the unified rail system is superior to the separate rail system. In this paper, we analyze the drag characteristics of the electromagnetic levitation system with magnetic rails unified for both levitation and propulsion. These unified magnetic rail systems introduce many advantages, such as reduced ground installations, a small-sized lightweight motor with small air gap and lightweight magnet. The tangential force of the LIM gives a propulsion force and the normal force gives a lift force magnet. Earlier, we proposed a similar scheme using a linear induction motor (LIM). In West Germany, the vehicular coils operate as a magnet of the linear synchronous motor, and the ground coils, which constitute magnetic rails, operate as an armature coil. In recent years, a new scheme has been proposed in which magnetic rails are used for both levitation and propulsion. The maglev train’s noise pollution is low and it requires less maintenance than previous high-speed trains.The magnetically levitated railway system utilizing the attractive force produced by a normal conducting magnet is now under intensive study in many countries. The high-speed maglev train has been designed with a top speed of 600 kilometers per hour according to CNN, ‘ several new maglev networks are reportedly under construction, including one linking shanghai and hangzhou and another connecting chengdu and chongqing.’ the only problem is that currently, china only has one maglev line in commercial use - one connecting shanghai’s udon airport with the city’s longing road station. compared to the 4.5 hours by plane and 5.5 hours by high-speed rail, this seems to be a huge achievement. Images courtesy of 3.5 HOURS FROM BEIJING TO SHANGHAIĪccording to liang jianying, deputy general manager and chief engineer of CRRC sifang, the train’s noise pollution is low and it requires less maintenance than previous high-speed trains.Ĭhina first unveiled the train prototype back in 2019 when it announced their maglev train would transport passengers from beijing to shanghai in about 3.5 hours. previous to this, trains running on the beijing-shanghai line had a maximum operating speed of 350 km/h. taking advantage of the lack of friction, the system allows the train to achieve speeds of up to 600km per hour whilst maintaining smooth acceleration. it uses two sets of magnets, one to repel and push the train up off the track, and another set to propel the ‘floating train’ forward. Maglev – short for magnetic levitation – is a system of train transportation, which employs magnetic forces to help the train achieve high speeds. developed by the china railway rolling stock corporation CCRC, the scientific and technological achievement in the field of rail transit places china in the forefront of ultra-fast ground transportation. the high-speed train has been designed with a top speed of 600 kilometers per hour, making it the fastest ground vehicle in the world up to today. China has unveiled its new maglev transportation system in qingdao, shandong province.
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