R
RelEng
Hi,
We have some parts that are only used during the winter months, so that the fault arising chart is a wave pattern, with crests starting around October, rising to a peak in December-January, then tailing off towards March.
Failures do still occur between March and October, but they are less than 5% of the winter rate.
The parts are only used momentarily, the root cause of the failure is known, and it's fairly certain that the failure will occur if the assembly was built during a known period in the past.
Can you recommend a suitable method to model this, so that a reasonable warranty forecast can be made?
We have some parts that are only used during the winter months, so that the fault arising chart is a wave pattern, with crests starting around October, rising to a peak in December-January, then tailing off towards March.
Failures do still occur between March and October, but they are less than 5% of the winter rate.
The parts are only used momentarily, the root cause of the failure is known, and it's fairly certain that the failure will occur if the assembly was built during a known period in the past.
Can you recommend a suitable method to model this, so that a reasonable warranty forecast can be made?