Through-life Engineering Services by Louis Redding & Rajkumar Roy

Author:Louis Redding & Rajkumar Roy
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

(14.4)

Without assuming the baseline hazard function, the regression parameter α is calculated with the help of the Maximum Likelihood method. With it, the effect of the covariate z on the hazard rate h(t, z) is assessed. It is utilized for calculation of the survival probability S(t; z;z (t)) at the instant t Eq. (14.5).

(14.5)

For maintenance planning the remaining useful lifetime (RUL) is often the criterion for renewal Eq. (14.6) [4, 18]. It is derived from the survival probability of Eq. (14.5) or any other continuous failure distribution.

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