Base Allocation Method
The following form is shown in the Allocation pane for an assembly when Base, Non-normalized or Base, Normalized is selected for Allocation method, which appears under Prediction in the System file properties. The default is Base, Non-normalized. For more information, see Prediction System File Properties.
The following table describes the data fields in the Allocation pane for the base, non-normalized and base, normalized methods. Field availability depends on selections made in various fields. For more information, see Base, Non-normalized Allocation Method Calculations and Base, Normalized Allocation Method Calculations.
Field | Description |
|---|---|
Allocation action | The way in which to allocate the failure rate or MTBF value for the assembly. Choices are: • Specify Goal — When selected, the failure rate or MTBF desired for the assembly is entered. Allocation goal type becomes available so that you choose whether you want to supply a a failure rate or MTBF goal. • Perform Allocation — When selected, weight factors are assigned to each subassembly and/or part. For the top-most assembly, this choice is invalid. For a lower-level assembly, selecting this choice makes Allocation weight factor available so that you specify its weight factor. For a part, you enter its weight factor in its Allocation pane. For more information, see Allocation Pane (Part). |
Allocation goal type | Indicates whether the goal to enter is a failure rate or MTBF value. This field is available when Specify Goal is selected for Allocation action. • Failure Rate — When selected, Allocation goal, FR becomes available so that you can enter the desired failure rate. • MTBF — When selected, Allocation goal, MTBF is available so that you can enter the desired MTBF. |
Allocation goal, FR | The desired failure rate goal for the assembly. This field is available when Failure Rate is selected for Allocation goal type. |
Allocation goal, MTBF | The desired MTBF goal for the assembly. This field is available when MTBF is selected for Allocation goal type. |
Allocation weight factor | Specifies the numeric value that identifies the portion of the parent assembly’s allocated failure rate or MTBF value that is attributed to this item. This field is available only when Perform Allocation is selected for Allocation action. |