Changing Failure Mode Parameters Dynamically

The input fields for Failure Mode Parameters can accept numbers, expressions and links from other GoldSim elements. They can also be specified as functions of time.

Depending on the failure mode type, however, failure mode parameters that are defined as a function of time may not change immediately. In particular, some parameters are only changed when the mode is repaired or the component is replaced.

The following table categorizes the inputs for each failure mode according to whether changes are reflected immediately, or only after a failure mode has been repaired or the component replaced

Failure mode	Changes take effect immediately	Changes take effect when failure mode is repaired or component is replaced
Exponential/Poisson	Failure rate
LogNormal		Mean (Geom. Mean); SD (Geom. SD)
Normal		Mean; SD
Uniform		Minimum value; Maximum value
Weibull		Mean life (Characteristic life); Slope factor
Specified Value Exceeded	Value at failure
Event triggered failure	Probability of failure
Defective component	Failure rate	Probability of defect
Erlang multi-failure		Failure rate; Number of components
Demand>Capacity	Demand; Capacity
Unreliable	Reliability

Note: The Cumulative failure mode does not allow you to change the inputs dynamically since the table must be specified using only numbers (and not equations or links).