How does the maglev train lift up?

Inside our MAGLEV train: The coil connects to the track by induction and switches on and off to propel the train Maglev Trains are trains that use magnetic levitation to move without touching the ground. This is done by magnets which both lift the train up from the ground and propel the train forward.



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How Maglev Trains Work. The magnetized coil running along thetrack, called a guideway, repels the large magnets on the train'sundercarriage, allowing the train tolevitate between 0.39 and 3.93 inches (1 to 10 centimeters) above the guideway. ... Maglev trains float on a cushion of air, eliminating friction.

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Electromagnets attached to the train's undercarriage are directed up toward the guideway, which levitates the train about 1/3 of an inch (1 centimeter) above the guideway and keeps the train levitated even when it's not moving. Other guidance magnets embedded in the train's body keep it stable during travel.

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Maglev trains require very straight and level tracks to maintain high speeds. This necessitates extensive viaducts and tunneling, making construction costly.

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The magnetic field generated by the Superconducting Maglev has no impact on health, as it is controlled with various measures to keep it below the standards established in international guidelines (ICNIRP Guidelines). The standards are set at approx. 1/5 to 1/10 the level that could affect the human body.

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Hermann Kemper (* April 5, 1892 Nortrup, Germany, in the district of Osnabrueck, † July 13, 1977) was a German engineer and is considered by many the inventor of the basic maglev concept. In 1922, Hermann Kemper began his research about magnetic levitation.

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There are guidance magnets and levitation magnets. The guidance magnets are designed to maintain the car alignment, never letting any physical contact. Ther is transverse inclination of the rails too, which helps reducing the curve of the turn.

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Magnetic fields inside and outside the vehicle are less than EDS; proven, commercially available technology; high speeds (500 kilometres per hour or 310 miles per hour); no wheels or secondary propulsion system needed.

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Maglev trains are “driven” by the powered guideway. Any two trains traveling the same route cannot catch up and crash into one another because they're all being powered to move at the same speed. Similarly, traditional train derailments that occur because of cornering too quickly can't happen with Maglev.

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Frequency spectrum of the TR 07 maglev compared to conventional high speed trains indicates that maglev is quieter in the high frequencies (above 1250 Hz) and in the low -frequencies (below 160 Hz), but has the same level in the mid-frequency range (160 Hz to 1250 Hz).

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Cost concerns over innovative rail The primary challenge facing maglev trains has always been cost. While all large-scale transportation systems are expensive, maglev requires a dedicated infrastructure including substations and power supplies and cannot be integrated directly into an existing transportation system.

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Compared to highspeed passenger rail, maglev passenger rail consumes roughly twice the power per passenger kilometer. For commercial freight I found an efficiency figure of 520 ton-miles per gallon (660 kg-km/MJ). Assuming 70kg for the average commuter passenger this gives us an efficiency of (116 kg-km/MJ) for maglev.

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SNCF, widely regarded as one of the best high-speed rail operators in the world, has had 4 profitable years and 5 loss-generating years since 2012. The Shanghai Metro Maglev has never been profitable. Clearly, there is an issue with passenger transport. No mode of transportation can consistently generate profits.

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Present Maglev systems cost 30 million dollars or more per mile. Described is an advanced third generation Maglev system with technology improvements that will result in a cost of 10 million dollars per mile. Plotkin, D.; Kim, S. Lever, J.H.

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