Mathematics - Geometry

Gears

URL Description
Automatic Transmission, How it works ?

The operation of an automatic transmission is explained here with help of animation. Allison-1000 transmission model, which has 6 speed and reverse is used for this purpose. The video starts with an explanation of planetary gear set. Just by engaging few clutch packs different output speed can be achieved in automatic transmission. A brief introduction of the torque converter is also given here.

Here is the 2D version of the video. In my opinion this video is more helpful than the 3D video to understand the technology. https://youtu.be/Ugao6jTyM7k

Automatic Transmission, How it works ? - 2D Version
Differential Gears - Spider, Side and Ring Gears

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HOW IT WORKS: Car Transmission (720p)

This educational video describes how a car transmission works in modern vehicles. In mechanical engineering, a transmission is a mechanical device that uses gears to improve mechanical efficiency, employing the ancient concept of the lever. Its a machine that requires a power source and a power transmission system, which provides controlled application of the power, automatically or manually. Often the term "transmission"

How Differential Gear works (BEST Tutorial)

An excellent tutorial from the 1930's on the principles and development of the Differential Gear. Fast Forward to 1:50 if you want to skip the intro.

How an Automatic Transmission Works (Allison 1000)

This is a very detailed explanation on how the gears of this automatic transmission converts the rotation of the input to those 6 speeds and reverse, using 3D animation.

Kinematics with MicroStation Ch06 Q High Speed Reduction Drive

Created with MicroStation MicroStation This video starts from how a Vernier Caliper measures small displacements (distances) by matching graduations on two bodies (vernier and main scale). This principle when reversed gives small displacement from successive matches of graduations (engagements) on two bodies. These are them made continuous by wrapping around a disc thereby producing a gear pair with high velocity ratio.

Kinematics with MicroStation Ch06O Epicyclic Gear Trains Complete Kinematics course made in MicroStation ; for deeper, intuitive learning without abstract formality and dry rigor for its own sake.
Manual Transmission, How it works ?
Torsen Differential, How it works ? The working of Torsen differential is elaborately explained in this video with help of animation.
Understanding Limited Slip Differential

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