It includes all about how MAGLEV trains works based on principle of MAGLEV technology,advantages and drawbacks am sure that u will definitely understood the topic.

1. THE MAGLEV TECHNOLOGY
PRESENTED BY : AMAN CHAND
COLLEGE : GH RAISONI COLLEGE OF ENGINEERING AND
MANAGEMENT
PLACE : PUNE
COURSE : SE MECHANICAL ENGINEERING

2. About maglev trains
 Maglev = magnetic + levitation
 Maglev technology has used electromagnetic force to hold up the
entire train compartment.
 Electricity is the main source of energy.
 The train propels or move forward without any friction with moving
mechanical parts.
 The beauty of maglev is that it travels on air.

3. Basic principles of maglev trains
Maglev trains have to perform the following
functions to operate on high speeds
 LEVITATION
 PROPULSION
 LATERAL GUIDANCE

4. PRINCIPLE OF MAGNETIC
LEVITATION
 Strong magnets are attached to the train.
 Magnets with same polarity are used
Which repels and levitates the train.
 Has ferromagnetic stators on the
track and levitate the train.
 A computer changes the amount
of current to keep the train 1 cm to
10 from the track.

5. TYPES OF MAGLEV
TECHNOLOGY
There are two types of maglev technology
 Electromagnetic Suspension (EMS)
Uses electromagnets for levitation ,propulsion and lateral guidance.
 Electrodynamics Suspension (EDS)
Uses superconductors are used for levitation ,propulsion and lateral
guidance.

6. PRINCIPLE OF PROPULSION
 Attractive forces between unlike magnetic poles pull each element
of the rotor toward the corresponding element of the stator.
 Just as the two poles are coming into alignment, the polarity of
the armature magnets is reversed, resulting in a repulsive force
that keeps the motor turning in the same direction.
 This is happened vice –versa and train attain the speed of – 450km/hr.

7. PRINCIPLE OF LATERAL GUIDANCE
 The levitation magnets and rail are both
U shaped, with rail being an inverted U.
 The mouths of U face one another.
 When one side of the train nears the side of the guide way, the super
conducting magnet on the train induces a repulsive force from the
levitation coils on the side closer to the train and an attractive force
from the coils on the farther side.
 This keeps the train in the center.

8. DRAWBACKS USING OF LIM
The main draw back of this type of maglev train is
its speed limit i.e. upto 500 km/hr Because of air
resistance and aerodynamic noise, greater speeds
are difficult to reach.

9. Introduction of ultra high speed train
 To overcome this speed limitation the concept of an ultra-high-
speed tube train are introduce.
 It runs through a partial vacuum tube.
 There is no air drag so resistance to air becomes zero.
 This increases the speed and efficiency greatly .
 It attains speed of about 700 km/hr.

10. PROBLEM FACED BY TUBE TRAIN
 At a speed of 700 km/hr a large thrust force ripple
causes vibration, noise and severe levitation disturbance
during the train operation.
 The passengers may suffer from the risk of cabin
depressurization in the event of a train malfunction.

11. LET’S SEE HOW IT WORKS
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