Mechanical vibrations are a type of movement of dynamic systems in the form of oscillation and are repeated over a period of time. In the simplest form, this type of movement can be simulated with a weight and a spring. By changing the initial position of the weight attached to the spring and releasing it, an oscillating motion occurs, the amplitude of which can be expressed by a sine function.

In general, there are two types of static and dynamic forces in machines. Vibrating forces are a type of dynamic force created by the presence of defects in the machine. Some areas of deficiency (deviation from the ideal state) include:

• Design limitations
• Manufacturing restrictions
• Errors in initial installation
• Operation errors
• Issues during repairs

Since it is not possible to reach the ideal state, there is always limited vibration in the machinery, which is allowed. However, over time and due to the occurrence of subsequent defects, the amplitude of vibrations may increase over the allowable limit, which can be restored by analyzing the vibrations and taking appropriate corrective measures.

You can find out more about the basic vibration concepts and vibration analysis by downloading and reading the following articles.