Note: Recurring events and non-immediate actions use the Time Unit specified in Simulation Settings.
Caution: If you run a simulation by right-clicking and selecting Run Multithreaded Simulation, the results are not reproducible, even if you specify a random seed.
Each block shape, except the knot block, has a failure distribution that determines the rate at which the block shape’s individual components randomly fail. The failure distribution for a basic block determines the rate at which the block fails, because basic blocks represent only one component. For more information about the available failure distribution options, see Distribution Options.
K-out-of-N blocks contain n identical components. The block fails when less than k of the components are functional. The following options are available for K-out-of-N blocks:
Standby blocks have secondary components, called standby components, that are inactive. Active components perform work within a standby block. Inactive components do not perform work within a standby block, and are activated one at a time as active components fail. Occasionally, the activation process is not successful. A component switch might fail when activating a standby component. A standby block fails when less than k of its n identical components are active. The following options are available for standby blocks:
Specifies the total number of identical components within the block. The difference between k and n is equal to the number of standby components.
A switch exists for each standby component. If the activation of a standby component fails, that standby component cannot be activated. The standby block attempts to activate the next standby component until a standby component is activated. If no remaining switches are functional and fewer than k of the components are active, then the block fails.
Specifies that stress is shared equally among the remaining functional components. This type of stress sharing is referred to as Load Sharing. The characteristic life of individual components is proportional to the number of components that share the work load.