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Maglev TrainTanujaMansiAditiPriyanshiTirthi Created by :WHAT IS MAGLEV?

Introduction Maglev(derived frommagneticlevitation) is a system of transportation that uses magnetic levitation to suspend, guide and propel vehicles from magnets rather than using mechanical methods, such as wheels, axles and bearings. Maglev transport is a means of flying a vehicle or object along a guide way by using magnets to create both lift and thrust, only a few inches above the guide way surface. High-speed Maglev vehicles are lifted off their guide way and thus are claimed to move more smoothly and quietly and require less maintenance than wheeledmass transitsystems regardless of speed. It is claimed that non-reliance on friction also means that acceleration and deceleration can far surpass that of existing forms of transport. The power needed for levitation is not a particularly large percentage of the overall energy consumption; most of the power used is needed to overcome air resistance (drag), as with any other high-speed form of transport.

WORKINGThe electromagnets on the underside of the train pull it up to the ferromagnetic stators on the track and levitate the train. The magnets on the side keep the train from moving from side to side. A computer changes the amount of current to keep the train 1 cm from the track.Technology The term "maglev" refers not only to the vehicles, but to the railway system as well, specifically designed for magnetic levitation and propulsion. All operational implementations of maglev technology have had minimal overlap with wheeled train technology and have not been compatible with conventionalrail tracks. Because they cannot share existing infrastructure, these maglev systems must be designed as complete transportation systems.

TheApplied LevitationSPM maglev system is inter-operable with steel rail tracks and would permit maglev vehicles and conventional trains to operate at the same time on the same right of way.MANin Germany also designed a maglev system that worked with conventional rails, but it was never fully developed.

Magnets Amagnet(from Greekmagntislthos, "Magnesianstone") is a material or object that produces amagnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on otherferromagneticmaterials, such asiron, and attracts or repels other magnets. Magnetic levitation,Maglev, ormagnetic suspensionis a method by which an object is suspendedwith no support other thanmagnetic fields.Magnetic pressureis used to counteract the effects of thegravitationaland any other accelerations.Magnetic polesMAGLEV TRANSPORTATIONLEVITATION AND PROPULSION

1) Levitation by attraction

2) Propulsion by repulsion

POWER SUPPLYBatteries on the train power the system, and therefore it still functions without propulsion. The batteries can levitate the train for 30 minutes without any additional energy.Linear generators in the magnets on board the train use the motion of the train to recharge the batteries.Levitation system uses less power than the trains air conditioning.

GERMANYS Maglev:THE TRANSRAPID

GERMANYS MAGLEVMonorail (only one rail under train).Like all Maglevs , it is very quiet (no track friction).Can climb steeper heights than normal trains, making it perfect for the mountains.

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SHANGHAIS MAGLEVClick here to take a ride on the Shanghai MAGLEV!

SHANGHAIS MAGLEVCompleted in January 2003.Connects Shanghais subway system to the International airport.Train gets up to 200 mph (321.87 km/h) in 2 minutes.Cost to city: 1.2 billion dollars (10 billion yuan) and 2.5 years to complete the 19 miles (30.58 km) track.Cost to ride.: $6 one-way, $8 for two-way ticket.

JAPANS MAGLEV

JAPANS MAGLEVExperimentalHolds Maglev speed record: 361 M.P.H (with passengers).Needs wheels at lower speeds till magnetic levitation fields produce enough lift to float.

CONCLUSIONMaglev trains use magnets to levitate and propel the trains forward. Since there is no friction these trains can reach high speeds.It is a safe and efficient way to travel.Governments have mixed feelings about the technology. Some countries, like China, have embraced it and others like Germany have balked at the expense.

ADVANTAGESWell it sounds high-tech, a floating train, they do offer certain benefits over conventional steel rail on steel wheel railways.

The primary advantage is maintenance.

As a result there are no components that would wear out.Because the train floats along there is no contact with the ground and therefore no need for any moving parts.

Because there are no wheels running along there is no wheel noise.

However noise due to air disturbance still occurs while the train is in motion.

The final advantage is speed (i.e. 500km/h or 300mph).

As a result of the three previous listed it is more viable for Maglev trains to travel extremely fast.Although this is possible with conventional rail it is not economically viable. Photo Gallery