Maglev System

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MAGLEV SYSTEM

Maglev(derived from magnetic levitation), is a system of transportation that suspends, guides

and propels vehicles, predominantly trains, using magnetic levitation from a very large number

of magnets for lift and propulsion. This method has the potential to be faster, quieter and

smoother than wheeled mass transitsystems. The power needed for levitation is usually not a

particularly large percentage of the overall consumption; most of the power used is needed to

overcome air drag,as with any other high speed train.

Cross section view of maglev train

The highest recorded speed of a Maglev train is !" #ilometres per hour ($%" mph), achieved in

&apan in '$,"*only % #ilometres per hour ($.+ mph) faster than the conventional T-wheel

rail speed record.

The first commercial maglevpeople moverwas simply called /M012-/ and officially opened

in "3!4 near 5irmingham,2ngland. 6t operated on an elevated %metre (', ft.) section of

monorail trac# between 5irmingham 6nternational 0irportand5irmingham 6nternational railway
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station, running at speeds up to 4' #m7h ('% mph); the system was eventually closed in "33 due

to reliability problems.'*

8erhaps the most well#nown implementation of highspeed maglev technology currently

operating commercially is the 9hanghai Maglev Train, an 6:9 (initial operating segment)

demonstration line of the ermanbuilt Transrapidtrain in9hanghai, China that transports

people $ #m ("3 mi) to the airport in ust + minutes ' seconds, achieving a top speed of

4$" #m7h ('%! mph), averaging ' #m7h ("% mph).

PROJECT WORK

SELECTION OF SYSTEM

9election of system of system is primary step for ma#ing a maglev proect. 0fter a brief analysis

and discussion we decided to wor# on 6nductrac# system.

Why Induc!ac" #y#e$%

9ince, there are three available systems for maglev 2M9 2


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TRACK & TRAIN

Ahen we tal# about anything that run, then we give priority to the speed. 9o similarly in this

case we tried to achieve ma@imum speed that we can achieve at a college level proect.

'a#(c #)ec(*(ca(+n +* T!ac"& T!a(n

The one special quality of M012- system is that either the train holds the trac# (as in 2M9)

with the help of Cshaped arms or the trac# holds the train. The one big problem of traditional is

that they could be derailed but by using the above concept (concept of holding the trac# or

train)the M012- system become free form this problem and thus become much safer than

traditional train.

0s we discussed earlier we are using the 6nductrac# system, which means we are using

permanent magnets for levitation purpose. The magnets need to be fi@ on the trac# = train by

using some adhesive. The position of magnets should be accurate as any deviation may lead to

variation in flu@ and may cause problem in balancing of train.

0s speed is one of our priorities we need to choose the shape of trac# which can provide

ma@imum speed. The ma@imum speed can be achieved easily on a straight trac# than on any

curved shape trac#. The only problem with straight trac# is that it should be long so that it train

can get sufficient time to achieve the ma@imum speed, but we cannot ma#e such long trac# at

college level proect. >ow this problem can be solved if we choosing circular trac#. 5y being

circular in shape, the trac# providesany amount of time which we need for ma@imum speed of

train. 0lthoughthis speed on circular trac# would be lesser than that on straight trac# but it can

give an idea of speed on straight trac#.


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A,VANTAGES OF TRAINS -SING MAGLEV.

Maintenance Bequirements Maglev trains currently in operation have demonstrated the need

for nearly insignificant guideway maintenance. Their electronic vehicle maintenance is minimal

and more closely aligned with aircraft maintenance schedules based on hours of operation, rather

than on speed or distance travelled. Traditional rail is subect to the wear and tear of miles of

friction on mechanical systems and increases e@ponentially with speed, unli#e maglev systems.

This basic difference is the huge cost difference between the two modes and also directly affects

system reliability, availability and sustainability.

0llAeather :perations Maglev trains currently in operation are not stopped, slowed, or have

their schedules affected by snow, ice, severe cold, and rain or high winds. This cannot be said for

traditional frictionbased rail systems. 0lso, maglev vehicles accelerate and decelerate faster than

mechanical systems regardless of the slic#ness of the guideway or the slope of the grade because

they are noncontact systems.

5ac#wards Compatibility Maglev trains currently in operation are not compatible with

conventional trac#, and therefore require all new infrastructures for their entire route, but this is

not a negative if high levels of reliability and low operational costs are the goal.

2fficiency oise 5ecause the maor source of noise of a maglev train comes from displaced air, maglev

trains produce less noise than a conventional train at equivalent speeds. Dowever, the

psychoacoustic profile of the maglev may reduce this benefit a study concluded that maglev
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noise should be rated li#e road traffic while conventional trains have a " d5 /bonus/ as they

are found less annoying at the same loudness level.

,e#(gn C+$)a!(#+n# 5ra#ing and overhead wire wear have caused problems for the Eastech

$%railed 9hin#ansen. Maglev would eliminate these issues. Magnet reliability at higher

temperatures is a countervailing comparative disadvantage (see suspension types), but new

alloys and manufacturing techniques have resulted in magnets that maintain their levitational

force at higher temperatures.

CONCL-SION & F-T-RE SCOPE

CONCL-SION/

Eor the purpose of understanding the concept of maglev system a maglev train is designed.

Ahile wor#ing the priorities were given to the efficiency as well as to economy. Ahile wor#ing

with maglev model proect we go through the various minute details of system which ma#e a big

difference

F-T-RE SCOPE

The scope of maglev in future is very wide. The few e@amples given below may give some idea.

a. Most of the developed and developing countries are interested in using maglev

system.

b. 6n F90 a upgraded version of maglev is on planning table.

c. >090 is discussing about the use of maglev system for launching of space vehicle as

it will decrease the cost of transportation.
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d. Countries li#e 6ndia are starting proects of maglev.

Thus we can see that maglev technology is going to have a part in each type of transport system.

6t is fast, comfortable, safe, and most importantly economic.

REFERENCES

". www.google.com

'. www.wi#ipedia.corg

$.

Documents

Maglev System