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General

Module 1. Tractor Mechanics

Module 2. Traction

Module 3. Introduction to Transmission System

Module 4. Clutch System

Module 5. Gear Box

Module 6. Differential and Final drive

Module 7. Brakes

Module 8. Steering system

Module 9. Hydraulics

Module 10. Power Transmission

Module 11. Human Factors

## Lesson 11. Analysis of Clutch – uniform wear, uniform pressure

**Analysis of Torque Transmission**

In the figure, the frictional surface has an outer radius, r_{0}, inner radius r_{i}.

Assume an elemental surface area of thickness dr at a radius of r from the centre. If p is the pressure exerted while putting the two discs A and B together.

r_{o} – radius of outer end of the clutch facing

r_{i} – radius of inner edge of clutch facing

dr – thickness of the elemental element of clutch facing at a distance of r from the centre

Total axial force, df = p.dA

df = p.2πr.dr

F = 2π

The torque that can be transmitted

**Case I** : If pressure is constant i.e. p=k

**Case II: **if wear is constant i.e. p.r = constant

Numerical

Last modified: Monday, 3 March 2014, 5:04 AM