question

yoni A avatar image
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yoni A asked tannerp edited

First Failure MTBF-MTTR

How can I set up the First failure, option to be ignored (If I don't have data) in the MTBF-MTTR fields?

mtbf mttr
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Joshua S avatar image
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Joshua S answered Joerg Vogel edited

Enter a negative number as the value for "First Failure Time".

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yoni A avatar image yoni A commented ·

I put a negative number in the first failure time field, and the uptime and downtime fields are ignored during the simulation, meaning that the equipment never go into a breakdown state.

I want to ignore the first time the machine breaks, but want to see how it randomly breaks during the simulation based on a duniform(a, b) distribution. @Joshua S

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Joerg Vogel avatar image Joerg Vogel yoni A commented ·

Place the same distribution in the first failure time and mtbf. EDIT: Then there isn't any difference between the first failure and mtbf. In fact I can't see any difference if the first failure occurs either by mtbf or first failure.

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