Geriometry: a cumulative stress/damage measurement of useful life of mechanical systems

by Richard G. Salter

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Ground and highway vehicles are often poorly maintained because of the propensity of users to ignore routine maintenance and to drive the vehicle until failure has occurred. The advent of microcomputers now makes it possible to keep a running measure of cumulative damage to motor vehicles and to use this measure to optimize the system's reliability. The term "geriometry" has been coined to name this process of measuring a mechanical system's continuing life expectancy. Used in conjunction with trend assessment of system condition and performance capability, geriometry provides a powerful capability to manage and minimize maintenance resources while maximizing reliability.

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