Weibull Life Data Analysis
2- and 3-parameter Weibull fit with right-censored data via Rank Regression & MLE, probability plotting, and MTTF.
Professional reliability modeling, equipment availability analysis, maintenance strategy optimization, and root-cause risk tools. Built with double-precision mathematical rigor, provable golden tests, and zero server transmission.
Weibull life data analysis, mission reliability, RBD, and failure modeling.
2- and 3-parameter Weibull fit with right-censored data via Rank Regression & MLE, probability plotting, and MTTF.
Compute failure rate (lambda), MTBF, mission reliability R(t), chi-square confidence bounds, and zero-failure test sample size.
Series, parallel, k-out-of-n, and standby redundancy configuration modeling with Birnbaum importance measures.
Construct fault trees with AND, OR, and k-of-n gates, MOCUS minimal cut sets, and Fussell-Vesely importance metrics.
Track reliability improvements during testing using the Crow-AMSAA NHPP power law model and Duane plotting.
Statistical Laplace and MIL-HDBK-189 trend tests to determine if asset failure rate is improving, stable, or deteriorating.
Arrhenius, Inverse Power Law, and Eyring thermal/electrical stress acceleration factors and equivalent test durations.
Operational availability, OEE & TEEP loss waterfalls, and downtime analytics.
Calculate Inherent (Ai), Achieved (Aa), and Operational (Ao) availability, series/parallel uptime, and yearly downtime hours.
Overall Equipment Effectiveness (OEE) and Total Effective Equipment Performance (TEEP) with Six Big Losses waterfall.
Analyze failure logs via 80/20 Pareto distribution by cause, asset, or subsystem with cumulative duration & frequency markers.
Upload work order CSV logs to calculate empirical MTBF, MTTR, MTTF, and censored operating time per asset.
PM interval optimization, criticality ranking, P-F planning, and RCM worksheets.
Age-replacement and block-replacement cost rate minimization balancing planned replacement vs unplanned failure costs.
Generate rolling multi-asset calendar schedules with labor leveling, shutdown window clustering, and ICS calendar export.
Configurable 5x5 risk evaluation weighting Safety, Environmental, Production, Quality, and Direct Repair costs into A/B/C classes.
Calculate condition-based inspection intervals from failure warning timelines and condition monitoring detection probabilities.
Document Functions, Functional Failures, Failure Modes, and Consequences with classical task selection logic.
Interactive decision tree selecting between Run-to-Failure (RTF), Time-Based PM, CBM, or Redesign.
FMEA/FMECA, 5-Why root cause branching, Ishikawa fishbone diagrams, and CAPA.
Failure Mode & Effects Analysis with Severity, Occurrence, Detection, Risk Priority Numbers (RPN), and MIL-STD-1629 criticality.
Structured multi-branching 5-Why investigation workspace with root-cause validation rules and corrective action links.
Interactive cause-and-effect diagram builder with 6M (Manufacturing) and 8P (Process) presets and SVG/PNG export.
Private, in-browser corrective and preventive action board with due-date tracking, ownership, and CSV backup.
ABC-VED spares criticality matrix, Poisson stock levels, and MRO turnover KPIs.
Dual-axis inventory classification combining ABC annual dollar usage with VED (Vital, Essential, Desirable) criticality.
Determine exact safety stock quantities for slow-moving parts to meet target Cycle Service Levels without over-stocking.
Track inventory turnover ratio, days sales of inventory, carrying cost, and Slow-Moving & Obsolete (SLOB) stock ratios.
Repair vs replace EAC analysis, Life Cycle Costing (LCC), and downtime loss models.
Equivalent Annual Cost (EAC) comparison with salvage value, discount rate, overhaul costs, and breakeven replacement year.
Multi-option total cost of ownership (TCO) model comparing Acquisition, Energy, Maintenance, Downtime, and Decommissioning.
Quantify lost margin, idle direct labor, scrap, customer SLA penalties, and restart losses per event and per operational year.
Calculate financial Return on Investment (ROI), Payback Period, Net Present Value (NPV), and Internal Rate of Return (IRR).
ISO 281 L10 bearing life calculator and sinusoidal vibration unit conversions.
Calculate basic rating life L10 (million revs) and L10h (operating hours) for ball and roller bearings with ISO 281 a1 factors.
Convert sinusoidal vibration signals between Acceleration, Velocity, and Displacement across RMS, Peak, and Peak-to-Peak.
EN 15341 / SMRP standard maintenance KPIs and client-side work order tracker.
Standardized maintenance performance metrics: Schedule Compliance, PM Compliance, Planned Work %, Backlog (weeks), and MTBF/MTTR.
Local-first offline maintenance log for work orders, preventative tasks, technician hours, and spare parts.
Deep-dive technical documentation on governing international standards (ISO, IEC, SAE), mathematical derivations, and industrial implementation best practices.
2- and 3-parameter Weibull distributions, Bernard median ranks, handling right-censored industrial fleets, and failure physics.
The Six Big Losses, Availability vs Performance vs Quality waterfalls, and uncovering hidden factory capacity.
The 7 rigorous standard questions of classical RCM, failure consequence hierarchy, and the P-F condition monitoring curve.
Why normal distribution fails for slow-moving spares, exact Poisson safety stock equations, and storeroom carrying costs.
Addressing the fatal mathematical flaws of legacy RPN with AIAG-VDA Action Priority (AP) logic and quantitative FMECA.