Page 128 - Reliability and Maintainability of In service Pipelines
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Determination of statistical parameters of basic random variables, based on monitoring data Identifying the threshold (a 0 ) data. depth corrosion of
Identify the time variant formulation of the degradation process (Eq. 4.15) Moment approximation of the degradation parameter (Eqs. 4.22 & 4.23, to calculate E(d(t)) and Var (d(t))) Calculation of gamma distribution parameters (Shape parameter α and scale parameter λ) by using Eqs. (4.12 & 4.13) Calculation of pr
(GDD) model
Sensitivity analysis degradation
distributed
Gamma
4.4
Figure
