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I am running a 217Plus analysis of an assembly with 3 subassemblies. When the calculation completes, Windchill presents a total failure rate ("Failure Rate, Predicted" attribute). That total is not equal to the total of the parts listed below each subassembly. When I run the exact same project as a 217F prediction, the total failure rate is equal to the sum of the parts listed in each subassembly. Why is this different? What is the correct value to use for the 217Plus overall predicted failure rate?
Hi,
Unlike 217F, the 217 plus multiplies the failure rate by the "Process Grade" value when calculating the total failure rate. If you set the process Grade values to 0, you will see that it is equal to the total of the parts listed below each subassembly.