RMQSI Answers Forum › Category: Electrical Component Reliability › Duty cycle, operating, non operating, etc.
0 Vote Up Vote Down
tmweber asked 15 years ago

Hi,

I have a question regarding the conversion of failure rates in calendar hours to operating hours. The methodology handbook states quite clearly,

2 Answers
0 Vote Up Vote Down
smorris answered 15 years ago

The reason is that for the 20% duty cycle case, you are condensing the non-operating failure contribution into a much smaller window of operating time, thus the higher operating failure rate.

0 Vote Up Vote Down
tmweber answered 15 years ago

That’s kind of what I thought. Working it out more I’ve been able to show it in more detail, so I thank you for confirming it for me.