DYNAMICS

The contents of each tutorial is shown. Click on link to download tutorial.

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WORK, ENERGY AND POWER
Derivations and applications of formulae for mechanical work and power. Basic friction theory and its effect on efficiency.
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MOTION
Linear and Angular Motion
Distance, Velocity and Acceleration -Relationships.

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IMPULSE AND MOMENTUM

Newton's Laws of Motion

Momentum and Impulse for Linear and Angular Motion

Coefficient of Restitution

Collisions Between Bodies.

Pile Drivers

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CENTRIPTAL/CENTRIFUGAL FORCE

Centripetal Force and Acceleration

The affect on Moving Machines

Vehicles sliding and overturning on bends

Stress and Strain Induced by Centrifugal force.

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MOMENTS OF INERTIA

Angular motion

Moment of inertia

Radius of gyration

Newton's laws

Inertia torque

Angular kinetic energy

Problems involving energy conversion

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INERTIA  FORCE IN MECHANISM

Inertia force

Inertia forces in mechanisms

The effect of friction

The system approach to solving problems

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KINEMATICS - VELOCITY/ACCELERATION DIAGRAMS

Mechanisms

Velocity and Acceleration Diagrams.

Motion of Piston, Con. Rod and Crank

Four Bar Chains.

Graphical and Mathematical Methods.

Inertia Forces.

Coriolis Acceleration/Sliding Links

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GYROSCOPES

A tutorial explaining the gyroscopic properties of spinning bodies and its effect on vehicles,aeroplanes and ships.

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 PULLEY DRIVE SYSTEMS

Wheel/belt Speeds

Friction on Curved Surface.

Power Transmitted.

Effect of Centrifugal Force.

Maximum Power Transmitted

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BALANCING - Two Tutorials covering:-

Tutorial 1 -     Balancing a simple disc.

 Static balance and dynamic Balance.

 Coplanar balance.

 Balancing in four planes.

Tutorial 2 -     Reciprocating Machine Balancing.

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Tutorial 1

Tutorial 2

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COUPLED BODIES

A short tutorial covering the sudden coupling of two freely rotating bodies.

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FLYWHEELS AND TORQUE - ANGLE DIAGRAMS

A short tutorial covering flywheels needed to limit the speed of machines subjected to a fluctuating torque.

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GEAR SYSTEMS

This tutorial covers simple gear trains, compound gears and epicyclic gear boxes. How to calculate gear ratios, power transmission and holding torque.

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CLUTCHES

This tutorial covers simple CONE and FLAT PLATE clutches. The theories of constant pressure and constant wear are investigated. Problems involve maximum torque and power transmission.

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SCREW DRIVES

This is a tutorial on screw friction and types of screw drive systems

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FRICTION BRAKES

This tutorial covers friction brakes - Shoes/Drums/Band Brakes

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GOVERNORS

This tutorial covers mechanical speed governors- Watt, Porter and Hartnell types

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VIBRATIONS

5 Tutorials covering most aspects of mechanical vibrations:-

Natural Vibrations, Free Damped Vibrations, Forced Vibrations, Systems with 2 Degrees of Freedom, Torsional Virations