Prognostics and Health Management

List of Figures

Figure 1.1	Core prognostic frameworks in a PHM system. Source: based on IEEE (2017).
Figure 1.2	Framework diagram for a PHM system. Source: based on CAVE3 (2015).
Figure 1.3	Graph of the exponential CDF with λ = 3.
Figure 1.4	Graph of the Weibull CDF with β = 1.2 and η = 5.
Figure 1.5	Graph of the exponential PDF with λ = 3.
Figure 1.6	Graphs of gamma PDFs.
Figure 1.7	Graphs of Weibull PDFs.
Figure 1.8	Failure rates of Weibull variables.
Figure 1.9	Failure rates of gamma variables.
Figure 1.10	Failure rate of the standard normal variable.
Figure 1.11	Failure rate of the lognormal variable with μ = 0 and σ = 1.
Figure 1.12	Logistic failure rate with μ = 0 and σ = 1.
Figure 1.13	Gumbel failure rate.
Figure 1.14	Log‐logistic failure rate with μ = 0.
Figure 1.15	Integration domain.
Figure 1.16	High‐level block diagram of a PHM system.
Figure 1.17	A framework for CBM for PHM. Source: after CAVE3 (2015).
Figure 1.18	Taxonomy of prognostic approaches.
Figure 1.19	Example of an FFP signature – a curvilinear (convex), noisy characteristic curve.
Figure 1.20	Ideal DPS transfer curve superimposed on an FFP signature.
Figure 1.21	Ideal DPS, degradation threshold, and functional failure.
Figure 1.22	Normalized and transformed FFP and DPS transformed into FFS.
Figure 1.23	Ideal FFS – transfer curve for CBD.
Figure 1.24	Variability in DPS transfer curves.
Figure 1.25	FFS transforms of the DPS plots shown in Figure 1.23.
Figure 1.26	FFS and prognostic ...