OEE, MTBF/MTTR, predictive and condition-based maintenance, vibration analysis, and CMMS. 57 terms in this topic - each defined in plain English on its own page.
OEE, MTBF/MTTR, predictive and condition-based maintenance, vibration analysis, and CMMS.
The running-speed vibration vector that fingerprints unbalance, tracks change over startups, and drives rotor balancing.
Read → GlossaryThe two-tier alarm and trip setpoints in machinery protection, with time delays, voting, and API 670.
Read → GlossaryThe OEE availability formula, how planned and unplanned downtime split, and how SCADA state tags drive it.
Read → GlossaryThe three-phase failure-rate shape - infant mortality, useful life, wear-out - behind burn-in and replacement.
Read → GlossaryPaired runup and coastdown views of 1x amplitude and phase versus speed that pinpoint a critical speed.
Read → GlossaryA crimped metal sleeve that consolidates stranded wire strands for a reliable terminal-block connection.
Read → GlossaryThe printed sleeve that shows a wire number, tying each conductor to the loop diagram and cable schedule.
Read → GlossaryWhy running survivors are right-censored suspensions and how ignoring them biases life estimates low.
Read → GlossaryThe software system of record for work orders, PM schedules, and asset history - and how SCADA data feeds it.
Read → GlossaryBirnbaum and Fussell-Vesely measures that rank which parts most affect reliability, so budget hits the weak links.
Read → GlossaryTracking vibration, temperature, and oil to catch machine wear early - the foundation of condition-based and predictive maintenance.
Read → GlossaryAlerting driven by an asset's current state rather than one static setpoint, cutting nuisance alarms.
Read → GlossaryTriggering maintenance when a measured condition crosses a threshold, not on a fixed calendar schedule.
Read → GlossaryMonitoring is the continuous watching of asset health; maintenance is the decision to act on it.
Read → GlossaryQuantifies lost production by reason code and asset, with SCADA auto-logging each outage that feeds it.
Read → GlossaryThe bottom-up worksheet that ranks failure modes by severity, occurrence, and detection to compute RPN.
Read → GlossaryHow combining two orthogonal probes into a forward and reverse spectrum sharpens rub and misalignment diagnosis.
Read → GlossaryGrading machine health by overall RMS velocity into zones A to D to set warning and trip vibration thresholds.
Read → GlossaryThe umbrella standard that consolidates ISO 10816 and 7919 into one A to D evaluation framework.
Read → GlossaryThe proximity-probe standard for peak-to-peak shaft displacement, and why turbomachinery uses both shaft and casing limits.
Read → GlossaryThe controlled bypass that inhibits a safety trip for testing or repair without a spurious shutdown.
Read → GlossaryThe unit of executable maintenance work - its lifecycle, planned versus reactive, and SCADA auto-generation.
Read → GlossaryA state-transition model for repairable, redundant systems where simple block diagram math falls short.
Read → GlossaryA multivariable controller that predicts future outputs over a horizon and optimizes a constrained move plan each scan.
Read → GlossarySampling component life and repair over many runs to estimate availability when formulas cannot.
Read → GlossaryThe average operating time between failures of repairable equipment - how it is calculated and how it drives availability.
Read → GlossaryMean time to repair - the average downtime per failure - how it is calculated, MTTR vs MTBF, and how it drives availability.
Read → GlossaryThe manufacturing metric combining availability, performance, and quality into one effectiveness percentage.
Read → GlossaryHow two proximity probes draw the shaft's path in a journal bearing, and how orbit shape and keyphasor dots find faults.
Read → GlossaryHow angular resampling against a tacho keeps running-speed harmonics sharp on variable-speed machines.
Read → GlossaryThe single broadband RMS number a monitoring system trends and alarms on to screen machine health.
Read → GlossaryThe warning window between detectable potential failure and functional failure that sets inspection frequency.
Read → GlossaryEstimating a design's failure rate early from component counts and environment using MIL-HDBK-217 or Telcordia.
Read → GlossaryHow OEE performance is measured against ideal cycle time, and how count-rate data exposes hidden speed loss.
Read → GlossaryHow a model predicts emissions from process parameters as a CEMS alternative, its inputs, and how it is validated.
Read → GlossaryForecasting equipment failure from condition data so you fix it just in time - versus reactive and preventive strategies.
Read → GlossaryTime- and usage-based scheduled servicing - the baseline PM that predictive approaches are compared against.
Read → GlossaryThe plan that assigns time- and runtime-based maintenance tasks to assets, tracks compliance, and reacts to SCADA data.
Read → GlossaryGood units over total units, how it differs from first-pass yield, and how reject and analyzer tags feed it.
Read → GlossaryHow MTBF improves through test-analyze-fix, tracked over time with the Crow-AMSAA and Duane models.
Read → GlossaryThe SAE JA1011 decision framework that picks the right maintenance strategy for each asset failure mode.
Read → GlossaryThe estimated time or cycles until an asset fails, produced by degradation trending and prognostic models.
Read → GlossaryThree vibration amplitude conventions, how they relate, and how to match a SCADA setpoint to the sensor.
Read → GlossaryThe post-failure investigation - Five Whys, fishbone, causal tree - that stops the same failure from recurring.
Read → GlossaryPeriodic handheld data collection on defined routes for balance-of-plant machines, versus permanent online monitoring.
Read → GlossaryWhen deliberately letting an asset fail is the cheapest correct strategy, and when it is simply negligence.
Read → GlossaryA SCADA running-hours counter that auto-schedules preventive maintenance at a threshold, then resets on completion.
Read → GlossaryMeasuring run versus idle time to calculate availability and, with reason codes, pinpoint exactly where production is being lost.
Read → GlossaryA case-mounted sensor measuring absolute housing vibration, versus a proximity probe measuring relative shaft motion.
Read → GlossaryProximity-probe shaft motion versus seismic housing motion, which machines need each, and dual-probe setups.
Read → GlossaryLogic that stitches a failed login, a firmware upload, and an off-hours setpoint change into one high-confidence alert.
Read → GlossaryThe largest peak-to-peak shaft displacement anywhere in the XY orbit, evaluated as the worst-case shaft metric.
Read → GlossaryThe six loss categories OEE decomposes into and how each maps to availability, performance, or quality.
Read → GlossaryContinuous vibration measurement on rotating machines: sensors, overall vs spectral values, and the alarm-and-trip logic behind protection.
Read → GlossaryUsing the timing of the 1x vibration to separate unbalance, misalignment, a bent shaft, and looseness.
Read → GlossaryStud, adhesive, magnet, and probe methods, their frequency limits, and placement for repeatable measurements.
Read → GlossaryThe FFT frequency view of machine vibration, where peaks at 1x, 2x, and harmonics map to specific faults.
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