Predictive Reliability
P-F Curve & Interval
The visual representation of asset degradation illustrating how early condition monitoring intercepts catastrophic functional breakdowns.
Mathematical Formula
Standard Formula
Time Elapsed Between Initial Detectable Defect (P) and Functional Failure (F)
World-Class Industry Benchmark:
Ultrasound/Vibration provides 1–6 month warning; Oil analysis gives 1–3 months; Audible noise gives days; Heat gives hours.
Interactive P-F Curve Calculator
Calculated Result
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Top CMMS Platforms for Automating P-F Curve
These maintenance software platforms eliminate manual spreadsheet calculations by logging shift times and generating automated executive charts: