What is the principle of maglev trains? How the brakes in them are working?

Answer 1

Magnetic levitation transport, or maglev, is a form of transportation that suspends, guides and propels vehicles via electromagnetic force. This method can be faster and more comfortable than wheeled mass transit systems. Maglevs could potentially reach velocities comparable to turboprop and jet aircraft (500 to 580 km/h). Since much of a Maglev's propulsion system is in the track rather than the vehicle, Maglev trains are lighter and can ascend steeper slopes than conventional trains. They can be supported on lightweight elevated tracks. Maglevs have operated commercially since 1984. However, scientific and economic limitations have hindered the proliferation of the technology.

Maglev technology has minimal overlap with wheeled train technology and is not compatible with conventional railroad tracks. Because they cannot share existing infrastructure, maglevs must be designed as complete transportation systems. The term "maglev" refers not only to the vehicles, but to the vehicle/guideway interaction; each being a unique design element specifically tailored to the other to create and precisely control magnetic levitation and propulsion.

The world's first commercial application of a high-speed maglev line is the IOS (initial operating segment) demonstration line in Shanghai that transports people 30 km (18.6 miles) to the airport in just 7 minutes 20 seconds (top speed of 431 km/h or 268 mph, average speed 250 km/h or 150 mph). Other maglev projects worldwide are being studied for feasibility.

Answer 2

If u wanna know the principle of maglev trains, then check it in internet & the trains get stopped ny applying brakes. We use electro-magnets as brakes to stop the train as hte electricity stops the magnetic effect of the train & gain asusual then off the electromagnets which helps the train to move again!!!!!!!!!!!

Answer 3

It is based on principle of magnetism.

Which is opposite poles rappel. this is how the train move forward.

The levitation means lifting, it is also done same way. So the train is started normally with forward motion due to magnetic manipulations, it rolls on its wheels and then, levitation magnets are activated causing it to loose contact with the ground. The lift is very very slight, this is done to reduce the friction and the train moves or you may say it flies. This is how a speed of about 250 miles per hour or so is achieved.

The train is stopped by reversal process, levitation is disengage, magnets polarity is reverse and rubber wheel tire are arrested, to keep it from rolling by automobile type breaking system only much heavy duty.

Answer 4

This site has a lot of information on Maglev trains:

http://science.howstuffworks.com/maglev-train.htm

I used it for an essay and it was really useful. Hope it helps!