Gearbox Repair-or-Run — 2 MW class
Downtime + crane economics of pulling a 2 MW class gearbox now vs running the vibration trend longer.
The costliest sentence in wind O&M is "let's watch it another quarter" said one quarter too long. For the volume onshore class of the 2010s (V90/V100, G97, 2.x platforms), crane mobilization alone runs into tens of lakhs — this tool weighs your vibration trend against parts lead time so the crane arrives on your schedule, not the bearing's.
Exponential extrapolation of the vibration trend to the alert limit — the classic P-F interval. The decision rule: when RUL ≈ lead time, you've run out of choices. Plan the crane while the trend still gives you the calendar.
Engineering estimate from published standards and typical equipment data. Site conditions, equipment datasheets and measured data govern the real result — confirm with a qualified engineer.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Use the free Gearbox Repair-or-Run — 2 MW class online — Downtime + crane economics of pulling a 2 MW class gearbox now vs running the vibration trend longer. Runs instantly in your browser: no signup, no upload, mobile-friendly.
About Gearbox Repair-or-Run — 2 MW class
The costliest sentence in wind O&M is "let's watch it another quarter" said one quarter too long. For the volume onshore class of the 2010s (V90/V100, G97, 2.x platforms), crane mobilization alone runs into tens of lakhs — this tool weighs your vibration trend against parts lead time so the crane arrives on your schedule, not the bearing's.
How to use Gearbox Repair-or-Run — 2 MW class
- 1Enter the current vibration level and the observed monthly growth.
- 2Set your parts-plus-crane lead time.
- 3Read remaining useful life, the order-by deadline and the value of acting on time.
Why use Gearbox Repair-or-Run — 2 MW class?
- ✓P-F interval logic: trend extrapolation to the alert limit, minus lead time
- ✓Order-by date computed — the actionable output, not just a curve
- ✓Prices the planned-vs-emergency premium your timing controls
- ✓Component-correct alert thresholds built in
Frequently asked questions
How is remaining useful life estimated from vibration?+
Exponential extrapolation: if levels grow g% monthly, months to the alert limit = ln(limit ÷ current) ÷ ln(1+g). It's the classic P-F interval — the window between detectable degradation and functional failure — turned into calendar math you can schedule cranes against.
When should I order parts for a degrading component?+
When RUL approaches lead time — that's the last cheap moment. The tool subtracts your parts+crane lead time from the RUL to print an order-by date; past it, you're choosing between premium freight and unplanned failure, both expensive.
How reliable are vibration-trend RUL estimates?+
Within ±30–50% for established trends — sufficient for scheduling, not prophecy. De-risk by shortening measurement intervals as levels climb and re-running the estimate each reading; a stable estimate across three readings is bankable, a jumpy one says measure again sooner.
What does running to failure actually cost in wind?+
Typically 2–5× the planned-replacement cost: emergency crane mobilization, secondary damage (a failed HSS bearing seeding the whole gearbox), and downtime that lands in whatever season fate picks. The premium field in the Gearbox Repair-or-Run — 2 MW class makes that number explicit for your case.
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