Chassis Of Vehicle

Assalamualaikum wr wb
Hi readers ^^

It has been long time no post anything from last December, and here we are already in new year 2016. Alright, today i will post one topic relating with my task in next semester (semester 6th), about "Vehicle Frame" or commonly in mechanical engineering called as "Chassis".

 
Chassis was a fundamental of all vehicles, it is like a skeleton in our body, this is cause why chassis is also important component for a vehicle cause this component will holding weight of whole attachment components such main machine, body, and also passengers inside vehicle.

Looks simple and easy, but in reality to make this one, need more calculations which very elaborate and expert in precision. Maybe the main element of compute such a chassis is "Construction Analysis", like stress-strain analysis, materials choices, suspensions, and else.


I think, to explain it more detail need more many pages of this blog, so i upload some journals about "Chassis Design" here :

15-02319Erik Olofsson…ort.pdf
 Chassis 2002-01-3300D…sis.pdf

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Differential Gear

Assalamualaikum wr wb
Hi readers :)

Have you seen, when an automobile does a turn left or right, wheels can does properly without making a slip ? Why it can does properly ? should be if an automobile without add any attachments, makes turn left or right, one of wheels will makes any slip because the different of rotation between left wheel and right wheel.

Is anyone have heard about "Differential Gear" ?  or maybe you have seen picture like below,

That is called in mechanical is "Differential Gear" which helps a vehicle does a turn without makes any slip. Need elaborate calculation and high precision to make it, cause this thing using any gear, and you know as mechanical engineering student, i am still feeling to make a gear design is too hard.

Differential gear also called as planetary gear, cause whole of components are using more than two gears, it is like solar system.

May i call this thing is made from a genius people ? cause differential gear can be manipulated of motions of vehicle, and if you know how important this, you must be part of F1 fan (why recently i am always make any relation my post with F1 ? =_=), slip making reduce speed of vehicle, also wheel which we used would be fragile to be damage and wear.


And by differential gear, this problem has solved, by solution to make automatic changer of rotation speed on wheels when a vehicle does a turn.

Principle of differential gear is simple, but too expert in fundamentally of idea.

While a vehicle moving straight, the differential gear will has same speed motions or rotation, this is cause the left and right wheel has no slip (Nright = Nleft). But when vehicle makes a turn, left or right it will be affecting a speed of wheels from one of wheel, for example

By video at above, you will understand how differential gear work and make our car or automobile will makes properly move.

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