Failure Rate

(redirected from Hazard rate)
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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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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 ?
The coefficients can be interpreted as the effect of covariates on the hazard rate of enacting tort reform.
In Table 5, we report the total hazard rate, the hazard rate for drivers with no family connections, and the hazard rate for those drivers with family connections of being a father, son, or brother for the first ten years of each driver's career.
Due to its many desirable features, hazard rate estimation is widely used for examining the length of spells preceding transitions in and out of employment or labor force participation.
This model is very flexible to describe lifetime data, since it has the hazard function with constant, increasing, decreasing, bathtub, and upside-down bathtub hazard rate. The quantile function of the GW distribution has closed form and is given by
This rate is commonly referred to as the hazard rate and can be interpreted as the risk of nest not surviving at a given time.
Several studies of mortality after the death of a spouse, summarized in a meta-analysis [2], demonstrated that the population hazard rate is substantially elevated immediately after the death of the spouse, before gradually declining.
In order to capture how much earlier a subsidiary was divested relative to other subsidiaries during each observation year (i.e., the hazard rate of each subsidiary), we consider both the survival duration and divestment event (i.e., divested or not) using an event history analysis.
The reverse Hazard rate function was determined as the relation among the probability density function and it's confirming distribution function.
H1: The hazard rate (likelihood) that a carrier receiving a warning flag for HOS compliance at the start of the CSA program will exit the warning status will decline as time elapses from the start of the CSA program.
It is also possible to graphically depict the hazard rate of a sponsorship ending over time.
This chapter refers to the incident data collection methodology opted by the author and use of incident statistics in forecasting and development of hazard rate function.
According to the feature parameters of the real-time operation, PHM can get the device hazard rate in its current state, to assess the current reliability of the equipment.

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