Interrupts
Interrupts (or failure/stop) is one of the dynamics that can be modeled using Discrete Rate Simulation. Interrupts are directly related to reliability. Reliability is defined as the probability that a system will perform its intended function for a specified period of time. For example, a reliability of 0.8 at 100 hours indicates that after 100 hours, there is an 80% chance that the system is still functioning.
Interrupts can be imported or added directly in the Constraints pane.
Each Interrupt has the following parameters:
Name
Interrupt Type
Uptime Distribution
Uptime Parameter 1
Uptime Parameter 2
Downtime Distribution
Downtime Parameter 1
Downtime Parameter 2
Interrupts are often classified using the bathtub curve or failure rate graph. This graph is used in reliability engineering and deterioration modeling. The 'bathtub' refers to the shape of a line that curves up at both ends, similar in shape to a bathtub. The bathtub curve has 3 regions:
The first region has a decreasing failure rate due to early failures.
The middle region is a constant failure rate due to random failures.
The last region is an increasing failure rate due to wear-out failures.
See the Distributions section for more information.
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