Dynamic System

Definition - What does Dynamic System mean?

A dynamic system is a system or process in which motion occurs, or includes active forces, as opposed to static conditions with no motion.

Dynamic systems by their very nature are constantly moving or must change states to be useful. These types of systems include:

  • Vehicles
  • Process industries
  • Drilling
  • Entertainment equipment (radios, televisions, etc.)
  • Computers and printers, etc.

Dynamic systems generally aggravate and accelerate corrosion of materials. A dynamic corrosion test can be used to evaluate the dynamic conditions on the corrosion behavior of materials.

Corrosionpedia explains Dynamic System

A dynamic system is a system that is constantly changing, like the human body. Dynamic systems tend to become static or attain a state of equilibrium. For example, if a car is assumed to be a dynamic system, then it requires fuel to continue moving forward or else it would come to a stop and become static. Dynamic systems' output depends upon future and past values.

In a dynamic system, corrosion rates can increase rapidly. For example, under dynamic conditions the corrosion of various drilling fluids in an oil drill field increased significantly, with corrosion rate being greater than that of static conditions. The experimental results showed that high temperature accelerated corrosion. The corrosion rate of the dynamic condition was more severe than that of the static condition at the same temperature. Dynamic corrosion was more drastic in drilling fluid systems than saturated salt mud.

Dynamic systems are usually more difficult to model, especially if the evolution of the dynamic behavior is poorly understood. Therefore, materials corrosion studies in both static and dynamic states should be performed to understand corrosion mechanisms and to assess long-term corrosion rates for different materials.

The relative erosion-corrosion resistance of materials can be ranked through dynamic corrosion testing.

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