Windchill Risk and Reliability Desktop Help > Windchill RBD > RBD Interface > Block Diagram How-Tos > Specifying Spares Optimization Parameters > Spares Optimization Parameters Window
Spares Optimization Parameters Window
The Spares Optimization Parameters window provides for indicating whether you want to calculate and use optimal quantities for onsite spares, offsite spares, and/or replenishment levels the next time that RBD calculations run. The Spares Optimization Parameters window lists three entries for each spares pool inserted in the Project’s RBD Spares file so that you can choose which optimal values to calculate for it. For more information, see RBD Spares Files.
The following table describes the columns in the Spares Optimization Parameters window. Availability depends on whether Optimize is cleared or selected. For more information, see Specifying Spares Optimization Parameters.
Column
Description
Spares Pool
The name assigned to the spares pool in the RBD Spares file. This parameter is display-only.
Data Type
The type of spares data that can be optimized for the spares pool. This parameter is display-only. Because quantities for onsite spares, offsite spares, and replenishment levels can be optimized, this parameter lists three choices for each spares pool: Onsite Quantity, Offsite Quantity, and Replenishment Level.
Optimize
Indicates whether to compute the optimal quantity when RBD calculations next run.
• When this checkbox is cleared (default), an optimal quantity is not calculated. In this case, Minimum and Maximum are unavailable, and Use Optimized Result is available only if a valid value already appears for Optimized Result from a previous optimization calculation.
• When this checkbox is selected, an optimal quantity is calculated based on the values specified for Minimum and Maximum, which are made available. In this case, Use Optimized Result is selected but unavailable.
Minimum
The minimum value that should be considered for the quantity during optimization. The default is 0. This parameter cannot be blank. The value that you enter must be 0 or greater, and it must be less than the value that you enter for the maximum.
Maximum
The maximum value that should be considered for the quantity during optimization. The default is #, which means infinite or no upper bound. The value that you enter must be greater than or equal to the value that you enter for the minimum.
Optimized Result
Displays the result from the last optimization calculation that was performed. This value is display-only. If NA (for Not Applicable) is shown, the optimal quantity has not yet been calculated.
Use Optimized Result
Indicates whether or not to use the optimal quantity calculated for the spares pool when RBD calculations are next run. This checkbox is available when Optimize is cleared and the value for Optimized Result is either not NA or is greater than 0. In this case, you can select this checkbox to use the existing optimal quantity value. This checkbox is selected and unavailable if Optimize is selected. In this case, an optimal quantity is calculated based on the specified parameter values and this value is then used.
At the bottom of the Spares Optimization Parameters window are Excel and Print buttons, which you can use to save table results to a Microsoft Excel spreadsheet or to print them to a printer. For more information, see Excel and Print Buttons.