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MAGNETIC LEVITATIONMAGNETIC LEVITATION

AND MAGLEV TRAINSAND MAGLEV TRAINS

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Presentationoutline

y Whatis magneticlevitation ?

y Application & informationabout maglev.

y Typesofmaglev.

y Infoaboutoneofthetype.

y Advantages & Disadvantages.

y Otherapplication.

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Magneticlevitation Or Maglev

yAnobjectis suspended withnosupport.

y Itisbased on propertyofmagnetism ofmagnetic

field .y Magnetic pressure isused tocounteract

theeffectsofthegravitational

and anyotheraccelerations

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Whatare Maglevtrains?

y Maglevuses ElectromagneticPropulsion.

y Trainsarethrustforward by positivelyandnegativelycharged magnets.

y Thetrainfloatsonacushionofaireliminatingfriction.

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TypesofMEGLEV

y Therearethree particularlytypesofmaglev.

y Electromagnetic suspension (EMS)

y Electrodynamic suspension (EDS)

y Magneto dynamic suspension (MDS)

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Electromagnetic Suspension

o Thetrainlevitatesaboveasteelrail.

o Theelectromagnets,attached tothetrain,areoriented toward therailfrombelow.

o Thesystem is

typicallyarranged

onaseriesof

C-shaped arms

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Working

y TheEMS utilizestheattractiveforceofmagnets.

y Theelectromagnetsareaferromagnetic material.

y Energyisapplied totheferromagnetstokeep the

trainhoveringaround thetrack.

y Acomputerchangestheamountofcurrenttokeepthetrain 1 cm awayfrom thetrack.

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MaglevGuide ways

y Theguide wayis madeofsteel.

y Insidethesteeltracktherecoil windings &amplifiers.

y Trackrepels magnetsonundercarriageoftrain,sendingthetrainforward.

y Trainlevitatesbetween

1 and 10 cm aboveguide way.

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Propulsion System

y Therearebatteriesinthetrain.

y Thebatteriescanlevitatethetrainfor 30 minuteswithoutanyadditionalenergy.

y Lineargeneratorsinthe magnetsonboard thetrainand the motionofthetrainisused torechargethebatteries.

y

Levitationsystem usesless power.

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Propulsion System

Whenthealternatingcurrentisreversed,thenbrakesareapplied tothetrain.

Differentspeedsareachievedbyvaryingthe

intensityofthecurrent.

Onlythesectionoftrack

wherethetrainis

travelingiselectrified.

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Advantages

y Theseareecofriendlytrains.

y Magneticfieldsinsideand outsidethevehiclearelessthan EDS .

y The majoradvantagetosuspended EMS systemsisthatthey workatallspeeds.

y Maglevisnoiseless,frictionless,and requirenomaintenance

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Betterforthe Environment

y Lessenergyconsumptionbecausenorail-trackfriction

y Requiresnofossilfuel, whichcanharm the

environment.

y Lessnoise pollutionsincethetrainneverhitsthetrack

y Maglevguide waysand trainstakeup lessspacethanconventionaltrains

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Disadvantages

y Theseparationbetweenthevehicleand theguideway mustbeconstantly monitored and correctedbycomputer.

y Duetothesystem'sinherentinstabilityand therequired constantcorrectionsbyoutsidesystems,vibrationissues mayoccur.

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Maglevvs. Conventional Trains

MagLev Trains Conventional Trains

No Friction,Less

Maintenance

Routine Maintenance

NeededNo Engine, Nofuelrequired

Enginerequiresfossilfuels

Speedsinexcessof300 mph

Speedsup to 110 mph

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y 1Europe 1.1 Germany

1.2 Switzerland

1.3 United Kingdom

y 2Asia 2.1 China

2.2 India

2.3 Japan

2.4 Malaysia 2.5 Pakistan

y 3 North America 3.1 United States

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Other MaglevApplications

y Theyareused in1)rollercoaster

y Infuturethistechnology willbeused in Rocketlaunching

Aircraftcarrierlaunching pad Spacecraftlaunching

Cars

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THANK YOU