MACHINE MOTIONS

The Meaning of Motion

Motion can be defined as the change in position of objects. This is a common phenomenon in nature. The moon moves, we humans move from one place to another. It is also a common practice for various components of a mechanical system to move relatively to one another. Examples include: the needle of a sewing machine at work, the tyre of a moving car, etc.

Types of Motion

Mechanical systems are commonly engaged in different types of motion of which the first two will be discussed:

1. Linear motion
2. Rotary motion
3. Oscillatory motion
4. Reciprocating motion
5. Intermittent motion
6. Irregular motion

Linear Motion

Linear motion can be defined as a change in position in a straight line, like the motion of the needle of the sewing machine or motion of a crane being hauled up using a pulley. There are different types/parts of a mechanical system that exhibit this type of motion. They include;

1.