Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
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Vibration Analysis
Analyzes wind turbine drivetrain vibration data (main bearing, gearbox, generator) from CMS trends, RMS/peak values, frequency spectrum, and SCADA alarms. Cl...
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Analyzes wind turbine drivetrain vibration data (main bearing, gearbox, generator) from CMS trends, RMS/peak values, frequency spectrum, and SCADA alarms. Cl...
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Install for OpenClaw
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Package facts
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- Yavira redirect
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- ZIP package
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- Tencent SkillHub
- What's included
- SKILL.md
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Trust & source
Release facts
- Source
- Tencent SkillHub
- Verification
- Indexed source record
- Version
- 1.0.0
Provenance
- Publisher
- Sertug17
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Documentation
Wind Turbine Drivetrain Vibration Analysis
Evaluates drivetrain vibration health across three subsystems: main bearing, gearbox, and generator.
When to Use
Load this skill when the user wants to: Assess drivetrain vibration health from CMS or SCADA data Interpret RMS, peak-to-peak, or spectral findings for main bearing, gearbox, or generator Correlate vibration alarms with operational events Decide whether to continue operating, increase monitoring, or shut down
Drivetrain Components
ComponentSensor LocationKey FrequenciesMain BearingNon-drive end, drive endBPFO, BPFI, BSF, FTFGearbox LSSLow speed shaftGear mesh (LSS x teeth), bearing defect freqsGearbox IMSIntermediate shaftIMS gear mesh harmonicsGearbox HSSHigh speed shaftHSS gear mesh, bearing defect freqsGenerator NDENon-drive end bearingElectrical harmonics, bearing defect freqsGenerator DEDrive end bearingBearing defect freqs, rotor unbalance
Vibration Thresholds (ISO 10816 / CMS Reference)
LocationNormalWarningCriticalMain Bearing RMS (g)< 0.30.3 - 0.8> 0.8Gearbox HSS RMS (g)< 0.50.5 - 1.5> 1.5Gearbox LSS/IMS RMS (g)< 0.30.3 - 1.0> 1.0Generator RMS (g)< 0.50.5 - 1.2> 1.2Peak-to-peak step change< 10%10-30%> 30% Note: Always evaluate against site-specific baseline. A 20% rise from stable baseline is more significant than an absolute value alone.
Frequency Fault Signatures
FaultFrequency SignatureBearing outer race (BPFO)(N/2) x (1 - d/D x cos a) x RPMBearing inner race (BPFI)(N/2) x (1 + d/D x cos a) x RPMGear meshnumber of teeth x shaft RPMGear mesh sidebandsGMF +/- shaft frequencyRotor unbalance1x RPM dominantMisalignment2x RPM dominant, axial componentLoosenessSub-harmonics (0.5x, 1.5x) or high harmonic content
Severity Scale
SeverityLabelDescriptionAction1HealthyAll values normal, stable trendContinue normal operation2Early warning1-2 parameters in warning zone, stableIncrease CMS polling frequency3ModerateMultiple warning flags or single criticalInspect within 2 weeks4SignificantCritical zone or rapid trend growthPlan shutdown within 48-72 hours5CriticalMultiple critical flags, step-changeImmediate shutdown required
Procedure
Collect inputs: CMS trend (last 30-90 days), current RMS and peak-to-peak per component, frequency spectrum findings, SCADA alarms, operational context. Evaluate RMS values against thresholds. Flag Warning or Critical zones. Analyze trend: Stable: value in warning zone but flat for >30 days = lower urgency Gradual rise: value increasing steadily = schedule inspection Step change: sudden jump >30% = treat as Critical regardless of absolute value Interpret frequency spectrum if available: Match dominant peaks to fault signatures table Note sidebands around gear mesh frequencies Note sub-harmonics or 1x/2x dominance Correlate with SCADA alarms and operational events. Assign severity per component, then determine drivetrain-level severity as highest. Generate output report using the format below.
Output Format
=== DRIVETRAIN VIBRATION REPORT === ASSET : [Turbine ID] SITE : [Site name] DATA PERIOD : [Date range of CMS/SCADA data] MISSING DATA : [List any unavailable inputs] MAIN BEARING: RMS : [value] g - [Normal / Warning / Critical] Trend : [Stable / Gradual rise / Step change] Spectrum : [Key findings or not available] SCADA Alarms : [Count and type] Severity : [1-5] - [Label] GEARBOX (LSS / IMS / HSS): RMS : LSS [value] g / IMS [value] g / HSS [value] g Trend : [per shaft] Spectrum : [Key findings] SCADA Alarms : [Count and type] Severity : [1-5] - [Label] GENERATOR (DE / NDE): RMS : DE [value] g / NDE [value] g Trend : [per bearing] Spectrum : [Key findings] SCADA Alarms : [Count and type] Severity : [1-5] - [Label] DRIVETRAIN SEVERITY : [1-5] - [Label] SHUTDOWN : [Yes / No / Conditional] FAULT HYPOTHESIS: [e.g., HSS bearing outer race defect - BPFO peak confirmed at X Hz] [e.g., Gear mesh sideband modulation - possible gear wear or load variation] RECOMMENDED ACTIONS: [e.g., Increase CMS polling to daily for HSS channel] [e.g., Oil sample with ferrography within 72 hours] [e.g., Plan HSS bearing replacement at next scheduled outage] ESCALATION TRIGGERS: [e.g., RMS exceeds 1.5 g on HSS - immediate shutdown] [e.g., Step change >30% on any channel - treat as critical] [e.g., New BPFO or BPFI peak confirmed in spectrum - escalate to Severity 4]
Cross-Skill Correlation
If gearbox visual data is available, load wind-turbine-gearbox skill and cross-correlate: High Fe ppm + rising HSS vibration = active wear confirmation Spalling in borescope + BPFO peak in spectrum = bearing failure progression Normal oil + rising vibration = early fault not yet generating debris (higher urgency) If blade inspection data is available, check for rotor imbalance: 1x RPM dominant in main bearing spectrum + blade damage = aerodynamic imbalance Asymmetric blade damage across A/B/C = mass or aerodynamic imbalance source
Pitfalls
Do not evaluate vibration in isolation. Cross-reference with oil analysis and visual inspection. A single high RMS reading during a storm or grid fault is not a fault indicator. Check operational context. Spectrum analysis requires RPM-normalized data. Raw frequency peaks are meaningless without shaft RPM. Generator electrical faults can appear as vibration. Check electrical data before attributing to mechanical cause. Stable high RMS is less urgent than rapidly rising moderate RMS. Trend rate matters more than absolute value.
Verification
After generating the report, confirm with the user: Does the severity match CMS system alerts or OEM recommendations? Is shaft RPM data available to normalize spectrum frequencies? Are there recent maintenance events that could explain vibration changes? Is SCADA power curve deviation consistent with vibration findings?
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Package contents
Included in package
1 Docs
- SKILL.md