Failure Rate

(redirected from Mean Distance Between Failure)

failure rate

[′fāl·yər ‚rāt]
(engineering)
The probability of failure per unit of time of items in operation; sometimes estimated as a ratio of the number of failures to the accumulated operating time for the items.

Failure Rate

 

the index of dependability of a device that is not subject to repair. Most often it is used to define the dependability of the subassemblies of electronic and automatic systems. In numerical terms the failure rate is equal to the failure probability of the device during a time period beginning at a certain moment provided that no failure has occurred before.


Failure Rate

 

an index of the reliability of repairable tools and machines. The failure rate is defined as the average number of failures of the repairable device per unit of time and varies with time.

References in periodicals archive ?
Spurr said the M-7 fleet is working well in the MTA/LIRR system, with the car's six-month Mean Distance Between Failure performance averaging 200,000 miles (320 000 kilometers) - a very positive indicator of overall reliability.
The delivery would enhance daily locomotive availability from 12 to 16, and the mean distance between failures would be extended from 6 015 km to 7 098 km.
NEW YORK -- The R160 metro car series in service in New York have achieved a record Mean Distance Between Failures (MDBF) of 1.