DYNAMICS

 

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MOTION

Linear and Angular Motion

Distance, Velocity and Acceleration -Relationships.

 

IMPULSE AND MOMENTUM

Newton's Laws of Motion

Momentum and Impulse for Linear and Angular Motion

Coefficient of Restitution

Collisions Between Bodies.

Pile Drivers

 

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.

 

GYROSCOPES

 Precession

Angular momentum

Gyroscopic torque

Gyroscopic affects on vehicles

 

MOMENTS OF INERTIA

Angular motion

Moment of inertia

Radius of gyration

Newton's laws

Inertia torque

Angular kinetic energy

Problems involving energy conversion

MOMENT OF INERTIA SAE SOLUTIONS

INERTIA  FORCE IN MECHANISM

 

Inertia force

Inertia forces in mechanisms

The effect of friction

The system approach to solving problems

 

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

 

PULLEY DRIVE SYSTEMS

Wheel/belt Speeds

Friction on Curved Surface.

Power Transmitted.

Effect of Centrifugal Force.

Maximum Power Transmitted.

 

BALANCING

Balancing a simple disc.

Static balance and dynamic Balance.

Coplanar balance.

Balancing in four planes.

Reciprocating machine balancing.

 

COUPLED BODIES

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

 

TORQUE - ANGLE DIAGRAMS

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

 

GEAR SYSTEMS

This tutorial covers simple gear trains, compound gears and epicyclic gear boxes.

How to calculate gear ratios, power transmission and holding torque.

 

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.

 

SCREW DRIVES

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

 

FRICTION BRAKES

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

 

GOVERNORS

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

 

VIBRATIONS

5 Tutorials covering most aspects of mechanical vibrations:-

Natural Vibrations

Free Damped Vibrations

Forced Vibrations

Torsional Virations