1. MAGNETIC LEVITATION
(MagLev)
By Nazia Banoo Siddiqui
(EEE,6th sem)

2. What is MagLev?
MagLev Technology;
-levitates objects in air
- electromagnetic propulsion
- caused by electro magnets

3. Technology in MagLev
1)ELECTROMAGNETIC SUSPENSION;
- uses attractive magnetic force of a
magnet.
2)ELECTRODYNAMIC SUSPENSION;
-uses repulsive force between 2
magnetic fields

4. Basic Concepts Of MagLev are-
- Halbach Array
-Levitation Track
-Propulsion system

5. Halbach Array
•grade 38, Neodymium-IronBoron (NdFeB).
•Posses “ one-sided flux” structure

6. MagLev “Guideways” or Tracks
 Track repels magnets on undercarriage of
train, sending the train forward.
 Train levitates between 1 and 10 cm
above guideway.

7. Levitation Track
 Using laminated copper sheets

8. Propulsion
A Linear Synchronous Motor (LSM)
propels the train.
 copper wire powered by 3ø AC

9. Inductrack Technology
basic concepts - propel & levitate

10. Velocity of train vs. height

11.  Advantages of Inductrack system are;
low weight
low power requirements
non adhesive drive system
 Disadvantages are;
early development status
lack of control over levitation

12. Travel Speeds
 At 300 kmph
 cheaper than flying!!!!
 Maglev

13. MagLev vs. Conventional Trains
MagLev Trains Conventional Trains
No Friction = Less Routine Maintenance
Maintenance Needed
No Engine = No fuel Engine requires fossil
required fuels
Speeds in excess of Speeds up to 110 mph
300 mph

14. Better for the Environment
 Less energy consumption because no rail-
track friction
 Requires no fossil fuel
 MagLev guideways & trains take up less
space than conventional trains
 Less noise pollution

15. Obstacles
 Expensive guideway.
 Existence of conventional high speed
train.
 Health concerns due to electromagnetic
fields.
 Lack of investment

16. MagLev Applications
 Disneyland’s California Adventure Coaster
& roller coaster uses MagLev technology to
propel car from 0-55 mph in less than 5
seconds!
 Disneyland® - California Screamin'

17. Other applications are-
 U.S. military is looking into using MagLev
 Possible uses could include:
 Rocket launching
 Aircraft carrier launching pad
 Space craft launching

18. Present Scenario
 Commercially viable
 It will run for commercial service
 At present countries like germany, japan
& china have shown their interest.
 Since 1990 maglev has gained status of
nationally funded project.

19. Conclusion
 Department of Energy, found that “maglev
technology” is a technically feasible
transportation system.
 The Inductrack technology will require a
long and expensive development period

20. References
 [1] R. F. Post,The Inductrack; a simpler approach to magnetic
levitation.
 [2] Richard F., RYUTOV, Dmitri D. Lawrence Livermore National
Laboratory “THE INDUCTRACK APPROACH TO MAGNETIC
LEVITATION SYSTEM.
 [3] Post, Richard F., Kratz, Robert, “Halbach Arrays for Maglev
Applications,” Lawrence Livermore National Laboratory. September
1999.
 [4] Post, Richard F., “Inductrack Demonstration Model,” Report
UCRL-ID-129664,February 3, 1998.
 [5] Dusty Funk & Kyle Getsla Project Advisor: Dr. Anakwa, May 12,
2006; MAGNETIC LEVITATION FINAL REPORT.

21. ?

22. THANK YOU