Magnetically Levitated Trains

1. MAGLEV (Magnetically
levitated trains)
Trains that fly!!!!!!

2. MAGNETIC LEVITATION
1. Process of suspending an object in air with the
help of magnetic fields
2. Moving a good electrical conductor like gold on a
magnet produces eddy currents on the conductor
3. At a sufficiently high rate of movement, a
suspended magnet will levitate on the metal, or
vice versa with suspended metal
4. Superconductors bieng fully diamagnetic repel
magnetic fields and can levitate when a
sufficiently high amount of magnetic field is
applied

4. The History of Magnetic
Levitation Vehicles
 1- 1750 – John Mitchell conducted the first experiments
measuring the magnetic forces between the poles of a
magnet .
 2-1900 – Robert Goddard and Emile Bachelet conceive the
concept of frictionless trains.
 3.-1969 – American scientist James R. Powell and Gordan
T. Danby patented the first design for Maglev trains.
 4-1970 – German and Japanese engineers start research
and development towards their versions of Maglev
technology.

5.  2003 – The Shanghai Trans-rapid Maglev Line is
inaugurated.

6. How maglev works
 1-A maglev train floats about 10mm above the
guide way on a magnetic field.
 2-2 ways of levitating a train-Electromagnetic
suspension(EMS) and Electrodynamic
suspension(EDS).
 3-Both ways have the same underlying
concept-a magnet will repel another magnet.In
both cases magnets in both the track and the
undercarriage of the train repel each other to
levitate the train.

7. EMS

8. EDS

10. Advantages
 1- Because the train floats along there is no
contact with the ground and therefore no need
for any moving parts.Hence there are no
components that would wear out.
 2- The trains are virtually impossible to derail
because the train is wrapped around the track.
 3-The trains can attain speeds upto 500km/hr
which is not economically viable for
commercial railways

11. Disadvantages
 1-The biggest problem is that it is
much more costly than conventional
track railways and governments
around the world aren't willing to
invest so heavily in such a project.
 2-Anotherproblem is that the EM
waves from the tracks may affect
mobiles and pacemakers of heart
patients

12. HANK YOU!!!