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TRANSRAPID MANGLEV

TRANSRAPID MANGLEV. BY– ISHAAN GUPTA ECE-123 03914802810. OUTLINE. Maglev. Two. Types. Full scale speed. 500 km/ hr. Types. EMS. Magnetic attraction . Servo-Controlled . Electromagnets. Iron-plate rail. EDS. Magnetic repulsion. S uperconducting. Induction. Cryogenic.

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TRANSRAPID MANGLEV

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  1. TRANSRAPIDMANGLEV BY– ISHAAN GUPTA ECE-123 03914802810

  2. OUTLINE

  3. Maglev Two Types Full scale speed • 500 km/hr

  4. Types EMS Magnetic attraction Servo-Controlled Electromagnets Iron-plate rail

  5. EDS Magnetic repulsion Superconducting Induction Cryogenic

  6. EMS system: The German Trans-Rapid TR08 demonstration train and 30 kilometer test track, with operating speeds up to 450 km/hr.

  7. EDS system: The Japanese Yamanashi demonstration train, with speeds of 500 km/hr on a 18 kilometer test track.

  8. Maglevworking

  9. The magnets on the side • => Sharper turns • An on-Board Master computer • => Efficient Levitation

  10. Propulsion System

  11. Three Phase Motor GUIDE-WAY

  12. The system consists of aluminum three-phase cable windings in stator packs on guide way. • When current is supplied to the windings, it creates a traveling alternating current that propels the train. • When AC is reversed, the train brakes. • Different speeds are achieved by varying the intensity of the current. • Only a section of track of train travel area is electrified.

  13. The Japanese maglev uses superconducting magnets

  14. Lateral Guidance • The super conducting magnet induces repulsive-attractive forces keeping the train in the center of the guide way.

  15. The German Trans-Rapid Maglev

  16. The Japanese Yamanashi

  17. Contactless energy transfer system Linear electric motor and guidance system Magnetic levitation inductor Emergency guidance And braking system Emergency pavement Swiss-Metro

  18. Inductrack System Lock./07

  19. The Inductrack System

  20. Drive & levitation coils in One of 6 magnets track (3 front, 3 back) C-fiber that provide levitation cradle and centering forces with ribs to support Guide rails to prevent magnetic force magnets from hitting Fiberglass I-beam track prior to levitation Steel box beam

  21. Lock./19

  22. The levitation and drag forces of the Inductrack can be analyzed using circuit theory and Maxwell’s equations

  23. To analyze the Inductrack we start with the equations for the magnetic field components of a Halbach array Br = Remanent field (Tesla), M = no. of magnets/wavelength. d(m) = thickness of Halbach array magnets, k = 2π/l

  24. Integrating Bx in y gives the flux linked by the Inductrack circuits and yields equations for the Lift and Drag forces Newtons/circuit Newtons/circuit w = width of Halbach array, L,R = circuit induct./resistance

  25. Dividing <Fy > by <Fx >yields an equation for the Lift-to-Drag ratio as a function of the track circuit parameters. The Lift/Drag ratio increases linearly with velocity, and with the L/R ratio of the Inductrack track circuits.

  26. The levitation efficiency (Newtons/Watt) can be determined directly from the equation for the Lift/Drag ratio Newtons/Watt Typical K values: K=1.0 to 5.0, depending on track design

  27. Application InfoComm

  28. Safety • Virtually impossible to derail. • Collisions between trains unlikely

  29. Maintenance • Contactless journey.. • SO, • NEARLY NO MAINTAINANCE!!

  30. Comfort • The ride at nearly 500km/hr is smooth while not sudden accelerating. • (Which, is also unlikely!)

  31. Economic Efficiency • The initial investment similar but operating expenses are half. • Can take 200-1000 passengers in single run

  32. The linear generators produce electricity for the cabin of the train.

  33. Speed • Can travel at about 300 mph. • For trips of distances up to 500 miles its total travel time is equal to a planes • It can accelerate to 200 mph in 3 miles. • =>ideal for short jumps.

  34. Environment

  35. MagLev vs. Conventional Trains

  36. Summary • Magnetic levitation (maglev) trains have been under development for many years in Germany and Japan for high-speed rail systems. • Maglev would offer many advantages as compared to conventional rail systems or inter-city air travel. • The cost and complexity of presently developed high-speed maglev trains has slowed their deployment. • The Inductrack maglev system, employing simple arrays of permanent magnets, may offer an economic alternative to existing maglev systems. • The simplicity of the Inductrack may make it attractive for use in a variety of applications, including urban maglev systems, people movers, and point-to-point shipment of high-value freight • The Inductrack, employing Halbach arrays, is an example of a practical application of the results of fundamental studies in magnetics and particle-accelerator physics.

  37. References • Bonsor, Kevin. “How Maglev Trains Work”. 5 September, 2002. <http://travel.howstuffworks.com/maglev-train.htm> • Keating, Oliver. “Maglevs (Magnetically Levitated Trains)”. 16 June, 2000. <http://www.okeating.com/hsr/maglev.htm> • Disney Online. “California Screamin’”. August, 1999. <http://disneyland.disney.go.com/disneyland/en_US/parks/attractions/detail?name=CaliforniaScreaminAttractionPage> • MagLev Systems. “Electromagnetic Systems”. General Atomics and Affiliated Companies. 2005. <http://www.ga.com/atg/ems.php>. • Lockhem tech. • http://www.google.com

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