Maglev trains are the fastest trains in the world! Maglev is short for magnetic levitation which basic principles involve the use of magnetism to levitate an object.
Magnetic Levitation is a method by which we can levitated an object with no support, other than magnetic field.
since it is a old theory but there still research is going on in this topic.now it is used in maglev train,maglev bearing and product display purpose.
Magnetic Levitation is a method by which we can levitated an object with no support, other than magnetic field.
since it is a old theory but there still research is going on in this topic.now it is used in maglev train,maglev bearing and product display purpose.
There are 22 slides.Contents are
(1)What is Maglev?
(2)Magnetic Levigation.
(3)Basic Principle of Maglev Trains.
(4)Types of Maglev Trains.
(5)EMS(Electromagnetic Suspension).
(6)ESD(Electrodynamic Suspension).
(7)Inductrack.
(8)Conclusion.
Maglev trains are the fastest trains in the world! Maglev is short for magnetic levitation which basic principles involve the use of magnetism to levitate an object.
Seminar on Magnetic levitation and its applicatonRahul Shaw
Magnetic levitation is the use of magnetic fields to levitate a (usually) metallic object. Manipulating magnetic fields and controlling their forces can levitate an object.
In this process an object is suspended above another with no other support but magnetic fields.
The electromagnetic force is used to counteract the effects of gravitation. But it has also been proved that it is not possible to levitate using static, macroscopic, `classical' electromagnetic fields.
The forces acting on an object in any combination of gravitational, electrostatic, and magnetostatic fields will make the object's position unstable.
The reason a permanent magnet suspended above another magnet is unstable is because the levitated magnet will easily overturn and the force will become attractive. If the levitated magnet is rotated, the gyroscopic forces can prevent the magnet from overturning.
Several possibilities exist to make levitation viable.
It is possible to levitate superconductors and other diamagnetic materials, which magnetise in the opposite sense to a magnetic field in which they are placed.
A superconductor is perfectly diamagnetic which means it expels a magnetic field (Meissner-Ochsenfeld effect). Other diamagnetic materials are commonplace and can also be levitated in a magnetic field if it is strong enough.Diamagnetism is a very weak form of magnetism that is only exhibited in the presence of an external magnetic field.
The induced magnetic moment is very small and in a direction opposite to that of the applied field. When placed between the poles of a strong electromagnet, diamagnetic materials are attracted towards regions where the magnetic field is weak.
Diamagnetism can be used to levitate light pieces of pyrolytic graphite or bismuth above a moderately strong permanent magnet. As water is predominantly diamagnetic, this property has been used to levitate water droplets and even live animals, such as a grasshopper and a frog.
Superconductors are perfect diamagnets and when placed in an external magnetic field expel the field lines from their interiors (better than a diamagnet). The magnet is held at a fixed distance from the superconductor or vice versa. This is the principle in place behind EDS (electrodynamic suspension) maglev trains. The EDS system relies on superconducting magnets.
A maglev is a train, which is suspended in air above the track, and propelled forward using magnetism. Because of the lack of physical contact between the track and vehicle, the only friction is that between the carriages and air. So maglev trains can travel at very high speeds (650 km/h) with reasonable energy consumption and noise levels
Maglev Trains- Train That Fly on the AirOnkar Pawar
Maglev is short for Magnetic Levitation in which trains float on a guide way using the principle of magnetic repulsion. Each magnet has two poles. Now if you play with two magnets, you'll realize that opposite poles attract, whereas similar poles repel. This repulsive property of magnets is used in Maglev trains. However, instead of using permanent magnets, the principle of electromagnetism is used to create strong and large temporary magnets. When an electric current is passed through a coil of wire, magnetic field is generated around the coil according to Faraday's laws.
Maglev (derived from magnetic levitation) is a transport method that uses magnetic levitation to move vehicles without touching the ground. With maglev, a vehicle travels along a guideway using magnets to create both lift and propulsion, thereby reducing friction and allowing higher speeds.Maglev trains move more smoothly and more quietly than
wheeled mass transit systems. They are relatively unaffected by
weather. The power needed for levitation is typically not a large percentage of its overall energy consumption;most goes to overcome air resistance (drag), as with other highspeed transport. Maglev trains hold the speed record for rail transportation
Magnetic levitation, Present and Future Usage.
Product Marketing, Bearing with infinite rpm, weightlessness, flying cars, low cost space launch and even the flying city.
Magnetic Levitation Train by Shaheen Galgali_seminar report finalshaheen galgali
Magnetic levitation is a highly advanced technology which uses the principle of Electromagnetic suspension & Electrodynamics suspension technology. It has various uses, The common point in all applications is the lack of contact and no friction. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. Magnetic levitation is a technique to suspend an object without any support other than that of a magnetic field. There are already many countries that are attracted to maglev system. Many system have been proposed in different parts of the worlds. Maglev can be conveniently considered as a solution for the future needs of the world. This contribution deals with magnetic levitation. An overview of types, principles and working of magnetic levitation is given with the example by train are presented.
There are 22 slides.Contents are
(1)What is Maglev?
(2)Magnetic Levigation.
(3)Basic Principle of Maglev Trains.
(4)Types of Maglev Trains.
(5)EMS(Electromagnetic Suspension).
(6)ESD(Electrodynamic Suspension).
(7)Inductrack.
(8)Conclusion.
Maglev trains are the fastest trains in the world! Maglev is short for magnetic levitation which basic principles involve the use of magnetism to levitate an object.
Seminar on Magnetic levitation and its applicatonRahul Shaw
Magnetic levitation is the use of magnetic fields to levitate a (usually) metallic object. Manipulating magnetic fields and controlling their forces can levitate an object.
In this process an object is suspended above another with no other support but magnetic fields.
The electromagnetic force is used to counteract the effects of gravitation. But it has also been proved that it is not possible to levitate using static, macroscopic, `classical' electromagnetic fields.
The forces acting on an object in any combination of gravitational, electrostatic, and magnetostatic fields will make the object's position unstable.
The reason a permanent magnet suspended above another magnet is unstable is because the levitated magnet will easily overturn and the force will become attractive. If the levitated magnet is rotated, the gyroscopic forces can prevent the magnet from overturning.
Several possibilities exist to make levitation viable.
It is possible to levitate superconductors and other diamagnetic materials, which magnetise in the opposite sense to a magnetic field in which they are placed.
A superconductor is perfectly diamagnetic which means it expels a magnetic field (Meissner-Ochsenfeld effect). Other diamagnetic materials are commonplace and can also be levitated in a magnetic field if it is strong enough.Diamagnetism is a very weak form of magnetism that is only exhibited in the presence of an external magnetic field.
The induced magnetic moment is very small and in a direction opposite to that of the applied field. When placed between the poles of a strong electromagnet, diamagnetic materials are attracted towards regions where the magnetic field is weak.
Diamagnetism can be used to levitate light pieces of pyrolytic graphite or bismuth above a moderately strong permanent magnet. As water is predominantly diamagnetic, this property has been used to levitate water droplets and even live animals, such as a grasshopper and a frog.
Superconductors are perfect diamagnets and when placed in an external magnetic field expel the field lines from their interiors (better than a diamagnet). The magnet is held at a fixed distance from the superconductor or vice versa. This is the principle in place behind EDS (electrodynamic suspension) maglev trains. The EDS system relies on superconducting magnets.
A maglev is a train, which is suspended in air above the track, and propelled forward using magnetism. Because of the lack of physical contact between the track and vehicle, the only friction is that between the carriages and air. So maglev trains can travel at very high speeds (650 km/h) with reasonable energy consumption and noise levels
Maglev Trains- Train That Fly on the AirOnkar Pawar
Maglev is short for Magnetic Levitation in which trains float on a guide way using the principle of magnetic repulsion. Each magnet has two poles. Now if you play with two magnets, you'll realize that opposite poles attract, whereas similar poles repel. This repulsive property of magnets is used in Maglev trains. However, instead of using permanent magnets, the principle of electromagnetism is used to create strong and large temporary magnets. When an electric current is passed through a coil of wire, magnetic field is generated around the coil according to Faraday's laws.
Maglev (derived from magnetic levitation) is a transport method that uses magnetic levitation to move vehicles without touching the ground. With maglev, a vehicle travels along a guideway using magnets to create both lift and propulsion, thereby reducing friction and allowing higher speeds.Maglev trains move more smoothly and more quietly than
wheeled mass transit systems. They are relatively unaffected by
weather. The power needed for levitation is typically not a large percentage of its overall energy consumption;most goes to overcome air resistance (drag), as with other highspeed transport. Maglev trains hold the speed record for rail transportation
Magnetic levitation, Present and Future Usage.
Product Marketing, Bearing with infinite rpm, weightlessness, flying cars, low cost space launch and even the flying city.
Magnetic Levitation Train by Shaheen Galgali_seminar report finalshaheen galgali
Magnetic levitation is a highly advanced technology which uses the principle of Electromagnetic suspension & Electrodynamics suspension technology. It has various uses, The common point in all applications is the lack of contact and no friction. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. Magnetic levitation is a technique to suspend an object without any support other than that of a magnetic field. There are already many countries that are attracted to maglev system. Many system have been proposed in different parts of the worlds. Maglev can be conveniently considered as a solution for the future needs of the world. This contribution deals with magnetic levitation. An overview of types, principles and working of magnetic levitation is given with the example by train are presented.
Comparison of analytical methods of analysing linear induction motors Chandan Kumar
Linear induction motor has found many applications, from slow moving sliding doors to high-speed ground transportation around the world. Although various methods have been developed for the analysis of linear induction motor, only few verifiable comparisons between these methods have been done in literature. These methods solve the Maxwell’s equations in and around the geometry of the machine and take care of the physical dimensions of the machine. These methods which are proved accurate are based on Fourier transform, Fourier series and Space harmonic techniques. Out of different methods of analysis, only few methods have been reported into the literatures which are capable of taking care of topological changes in Linear induction motor. Here in this work different computer programs have been developed which are based on the above techniques. These computer programs have been validated using the published results. These have been predicting the single sided and double sided Linear induction motors. A comparison of these methods has been reported for finding their suitability for the use of these methods for predicting the characteristics of LIM under different operating conditions.
Presented at National Conference on Mathemetical Modelling and Computer Simulation,2011.
Maglev trains are high speed trains that run on mangnets. The magnetic levitation, or floating of the train, is achieved through the use of an electrodynamic suspension system, or EDS.
Brief Description regarding magnetic levitation or magnetic suspension.It is a method by which an object is suspended with no support other than magnetic fields.
it is all about the working and little bit of history of the magnetic trains,
its a collection of knowledge,
find the references at end for more information
3. ABSTRACT
Maglev concept was based on using lightweight, very high
current superconducting loops suitably positioned on a
streamlined vehicle.
As the vehicle moves along a guideway containing loops of
ordinary aluminium wire at ambient temperature, the
superconducting loops induce small electric currents in the
guideway loops that are directly underneath them.
The magnetic interaction of the permanent currents in the
superconducting loops with the induced currents in the
guideway loops automatically levitates the vehicle.
If an external force (e.g. a wind gust, curve, or change in
grade) acts on the vehicle, a magnetic force automatically
and immediately develops to oppose the external force.
4. The magnetic force pushes the vehicle back toward its
normal equilibrium suspension point. Since Maglev
vehicles do not contact the guideway, their speed is
not constrained by mechanical stresses, friction, or
wear.
The speed is limited only by aerodynamic drag or
straightness of route.
Passengers will then be able to travel between New
York and Los Angeles, for example, in a little over an
hour, with virtually no energy required.
5. INTRODUCTION
Maglev = magnetic + levitation.
First described by Robert Goddard, American Rocket
Scientist, 1909 Scientific American.
Next, 1912, French engineer, modeled it, Emile
Bachelet, eddy-current repulsive levititation, amount
of power needed too high to run… lack of funding.
6. Uses magnets to float the train along the track.
No friction.
Cheat gravity.
Very quiet.
Travels very fast (up to 250 mph).
Requires all new train track to be built.
Can’t run on old train track, needs magnet system.
7. Expensive to build, but cheap to run.
Cost for labor and energy:
Air travel = approx. $ 14 per mile.
Maglev travel = approx. $ 04 to $ 10 per mile.
Cost to build Maglev train tracks = $5 million per two-
way mile.
Cost to build new airport , anywhere from $500 million
to $1 billion.
8. PRESENT TRENDS
General Atomics has received US$90 million in
research funding from the federal government. They
are also looking to apply their technology to high-
.
speed passenger services
Transrapid, a German maglev company, has a test
track in Emsland with a total length of 31.5 km
(19.6 mi).
Japan has a demonstration line in Yamanashi
prefecture where test trains JR-Maglev MLX01 have
reached 581 km/h (361 mph), slightly faster than any
wheeled trains.
9. PROGRESS PLAN
The news last week that the U.S. government would
distribute $90 million in grants for maglev planning
studies excited those who see the technology as the future of
transportation.
Germany advanced a proposal for a Berlin-Hamburg line, and
then a project from Munich to its airport, but both corridors
were canceled after the government refused to commit the
necessary funds.
Executives at the Central Japan Railway Company have a huge
ambition: to connect Tokyo and Osaka in one hour with a new
300 mph maglev system.
The first phase of the project could open by 2025 between Tokyo
and Nagoya, but this segment alone would cost more than $50
billion to build.
10. FUTURE TRENDS
Maglev trains are considerably faster than conventional trains.
By 2035, a trip from Toronto to Vancouver, the south east of
China, will take 3 hours, as opposed to the current trip of 3 days.
After this technology has been approved by people, it will render
most domestic flights on airplanes obsolete as people can
assume speeds faster than an airplane without the dangers of
hijacker, terrorism, or faulty piloting by human pilots.
By the end of the 21st century, every town with a population of
20,000 people or more in North America will be connected by a
highly detailed maglev train system.
This hemispherical maglev network will eventually connect to
similar towns in Central America and South America (once an
enduring stable democracy is in place).
11. CONCLUSION
They consume less energy.
Time consuming.
Move faster than normal trains because they are not
affected by ground friction; their rights-of-way,
meanwhile, cost about the same to build.
Incompatible with existing rail lines, unlike
traditional high-speed rail.
Initial cost is very high.