Page 127 - Reliability and Maintainability of In service Pipelines

Identify the time variant formulation of the degradation Determination of process (Eq. 4.15) statistical parameters of basic random variables, based on monitoring data Moment approximation of the degradation parameter (Eqs. 4.22 & 4.23, to calculate E(d(t)) and Var (d(t))) Calculation of gamma distribution paramet

(GDD) model

Sensitivity analysis degradation

distributed

Gamma

4.4
Figure