What Is Damping Ratio In Control System

The behaviour of oscillating systems is often of interest in a diverse range of disciplines that include control engineering chemical engineering mechanical engineering structural engineering and electrical.

What is damping ratio in control system. Every oscillating system com. This system is called an overdamped system and has a damping ratio of greater than 1. But that doesn t happen in nature. Damping ratio basically indicates the amount of damping present in the overall system denoted by zeta where damping is a counter force.

In the middle when the damping ratio is 1 the system is called critically damped. The behaviour of oscillating systems is often of interest in a diverse range of disciplines that include control engineering chemical engineering mechanical engineering structural engineering and electrical. Within the shaded region in figure 5 18b the system will have a damping ratio equal to or less than cos β. If there is no damping then a oscillating system will never come to rest.

Hence the line from the origin through p 1 forms a line of constant damping ratio. This allows us to define a region of acceptable system damping by requiring that the poles lie within a specified region on the pole zero map. The damping ratio is a system parameter denoted by ζ zeta that can vary from undamped ζ 0 underdamped ζ 1 through critically damped ζ 1 to overdamped ζ 1.