How Train Takes A Turn?

@ishan-nohePN • Oct 27, 2024

Oct 27, 2024

1.4K

How a train takes turn? Remember there is no differential mechanism in train wheels.

The correct answer would win a like.

Hint: The answer is not mechanical.

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zaveri

@zaveri-5TD6Sk • Aug 22, 2012

The train moves on its tracks, and adheres to it due to magnetic attraction between the tracks and the wheels. so the tracks alone have to be in the curved shape.

Maybe i am wrong. or has it got anything to do with swaying couple ?
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ISHAN TOPRE

@ishan-nohePN • Aug 22, 2012

You are completely wrong.
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Kaustubh Katdare

@thebigk • Aug 22, 2012

Issue
You are completely wrong.
#-Link-Snipped-#: A little extra politeness will help.

Get your detailed answer here -> #-Link-Snipped-#

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ISHAN TOPRE

@ishan-nohePN • Aug 22, 2012

Sorry sire.
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mechky

@mechky-jbqpJD • Aug 22, 2012

zaveri
The train moves on its tracks, and adheres to it due to magnetic attraction between the tracks and the wheels. so the tracks alone have to be in the curved shape.

Maybe i am wrong. or has it got anything to do with swaying couple ?
There is no magnetic attraction between the tracks and wheels. If that would have been the case, then imagine how much more power would get wasted due to magnetic attraction between tracks and wheels apart from usual friction loss.
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mechky

@mechky-jbqpJD • Aug 22, 2012

Issue
How a train takes turn? Remember there is no differential mechanism in train wheels.

The correct answer would win a like.

Hint: The answer is not mechanical.
I guess it is because of the design of wheels as shown in image below.

Both the wheels have flanges on one side and wheels follow the track. As the wheels approach a curve, flange of one wheel presses against the rail and prevents slipping.
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gohm

@gohm-F3UUpP • Aug 23, 2012

Also, the wheels move slightly on the track so there is a slight diameter difference when taking fast turns. The bogies are flexible which also helps.
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white_hat

@white-hat-RTFca6 • Aug 23, 2012

It is because of the design of the wheels.Wheel tread design unlike the road cars is slanting , like it is cone shaped.While train is moving on straight path then, both the wheels are in contact with the rail in same diameter, which keeps the body centered.While taking a curve,it actually pushes to one side, so that one wheel is in contact at smaller diameter and other one at a larger diameter.This allows both wheels to turn at different speeds.This is why trains slow down while taking a curve, and that noise you hear,like a squealing noise in the railway station , while train is changing tracks.
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arundtelang

@arundtelang-XVIxsY • Aug 23, 2012

Absolutely correct. Because of this design the radius of curvature of a track, while taking a turn is also considerably large. Sharp turn is not possible.
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NAVATHE SACHIN

@navathe-8fNDWG • Aug 24, 2012

post the answer pls....
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Mohit Kamat

@mohit-kamat-g7XEx9 • Aug 27, 2012

what I've noticed is the latest trains have a chassis as in cars on which wheels are mounted indivisually. So each wheel is independent and turn at different speeds
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Kaustubh Katdare

@thebigk • Aug 27, 2012

A similar, interesting question to discuss would be "How does Maglev train take turns?" 😀
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vikaskumar11233

@vikaskumar11233-J10JeV • Aug 27, 2012

Its good to learn about the reason behind how a train turns on the track .So,the conclusion is the tires design is responsible for it.
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rk rao

@rk-rao-XDlYMf • Aug 27, 2012

due to wheel design, and axle distance is maintained at an appropriate level. Also, we can feel in which direction the train is taking turn. Train is always slightly bend in that direction, the more longer the turn, the more bend the train would be. Comple turn might make the train falls.
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