1. High Speed Ground Transportation
Magnetic Levitation
High Speed Ground Transportation

2. I Can…
I can describe the history of magnetic levitation as it pertains to transport systems
I can identify an electrodynamics propulsion system.
I can identify an electromagnetic propulsion system.
I can describe the behavior of magnetism.
I can demonstrate how maglev works with a “floating car” designed and built by me.
I can describe supporting concepts such as friction, balance, force, weight, magnetic flux and more.

3. What is MAGLEV A magnetic Levitation train-like transportation system.
Utilizes magnetism to suspend, propel, and control a vehicle along a guide way.
High speeds up to and above 300 miles per hour.

4. History
By 1968 first U.S. patent for maglev to be used for transportation
1975 U.S. discontinued funding
Both Germany and Japan achieved advanced stages in maglev
The opportunity for the U.S. to re-emerge as an international competitor is real.

5. Behavior of Magnetism Every magnet has a north and south pole
Invisible lines of force create magnetic field or magnetic lines of flux

6. Like Poles Repel

7. Opposite Poles Attract

8. Electrodynamic System EDS
Based on repulsive forces of magnets
Japanese MAGLEV (MLU
Can’t levitate at low speeds
Roll on rubber tires until they reach a liftoff speed of about 62 mph (100 kph)
2-6” gap between train and track
Rely on changing magnetic fields creating electrical currents, and these can give passive stability
321mph

10. Electromagnetic System EMS
Needs a large electrical power source (coils)
Attractive
T-shaped guide way that train wraps around
.375” gap needs to be maintained
Germany’s Transrapid MAGLEV (TR-07)
270 mph
Rely on active electronic stabilization which constantly measure the bearing distance and adjust the electromagnet current accordingly

12. Pros and Cons of Maglev Pros Cons High speed Comfort Low Maintenance
Little noise
Low pollution
Could our current rail road tracks be used or do we have to build new?
Shielding of passengers from magnetic field radiation
Could eliminate short haul airlines
Batteries and electromagnetics are heavy. One car could weigh 45 tons.
What happens if the system loses power?

13. The Baltimore-Washington project
Connect Baltimore, MD and Washington, D.C.
Will cut travel time from 40 minutes to 20 minutes
Electromagnetic system
California to Nevada maglev