Reliability and Survival Methods • Repairable Systems Simulation • Options for Block Items
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Options for Block Items
To view settings for the components in a selected design or subsystem, do the following:
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To view the Configuration settings for a block shape, select the block shape in the System Diagram.
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To view Configuration settings for more than one block shape, select multiple block shapes using the Arrow tool, press Control, and click multiple block shapes.
Distribution Options
Each block shape randomly fails according to its specified failure distribution. In addition, you specify a time unit for the distribution. The block shape’s time unit can be different from the time unit option that you specify in the simulation settings. The Turn On Count option is based on the number of times the individual block shape has been set to the On state.
The available failure distributions are listed in Table 11.2.
Table 11.2 Distributions and Additional Parameters 
Property Type
Required Inputs
Exponential
Theta
Weibull
Alpha, Beta
Lognormal
location, scale
Loglogistic
location, scale
Fréchet
location, scale
GenGamma
mu, sigma, lambda
DS Weibull
Alpha, Beta, Defective Probability
DS Lognormal
location, scale, Defective Probability
DS Loglogistic
location, scale, Defective Probability
DS Fréchet
location, scale, Defective Probability
Nonparametric
data or data file
Estimated
estimated distribution, data or data file
To see the formulas and parameterization for these failure distributions, see Distributions in Life Distribution.

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Help created on 7/12/2018