Reliability and maintainability indicator

Details Reliability and maintainability indicator Reliability and maintainability indicator

1986-08-13

1987-11-17

Lall, Parshotam S.

Boots, shoes, and leggings

364551, 364550, 731173, G01M 1500, G06F 1516

Patent

active

047077964

ABSTRACT:
A Reliability and Maintainability Indicator (RAMI) is disclosed which effectively predicts the remaining time of operation of a system, equipment, component, or device before it would fail to perform its intended functions. The ability of RAMI to predict the remaining time of operation before failure is accomplished by having key parameters of an equipment monitored by applicable transducers to sense measurands periodically over a period of time. Then, these measurands are analyzed to project when they would reach pre-established limits which would indicate equipment failure or serious degradation resulting in the equipment failing to perform its intended functions.
A micro-processor based computer is used to analyze the measurands, as required, and correlates them, by means of mathematical extropolation to obtain the time at which failure, or a pre-established limit of degradation of the equipment is expected to occur. Visual and audio means are provided to indicate that the monitored equipment is operating properly or that a pre-determined degree of degradation has occured or is expected to occur by a given time.

REFERENCES:
patent: 3357239 (1967-12-01), Hohenberg
patent: 3362217 (1968-01-01), Evans et al.
patent: 3841149 (1974-10-01), Edwin et al.
patent: 4189940 (1980-02-01), Hulls et al.
patent: 4335600 (1982-06-01), Wu et al.
patent: 4366544 (1982-12-01), Shima et al.
patent: 4402054 (1983-08-01), Osborne et al.
patent: 4408294 (1983-10-01), Imam
patent: 4517468 (1985-05-01), Kemper et al.
"Probe Data Analysis System", by Harris Controls, pp. 1-12, Melbourne, Florida, Oct. 1982.

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