Selbstgesteuertes Projekt
Predictive Maintenance: Industrial ML for Fault Detection
Condition-Monitoring Engineer · KI / ML · September 2026
Eine ProoV-Fallstudie · Lernprojekt, kein Arbeitsverhältnis
Built a working rolling-bearing fault detector end to end: engineered RMS, kurtosis, crest factor, and defect-frequency envelope features; localized the fault to the outer race via BPFO; trained a compact depth-2 decision tree on training bearings only; and evaluated it on held-out bearings with reported catch-rate and false-alarm rate. The candidate also wrote a maintenance memo that justified a 0.60 alarm threshold using their own cost numbers and explained the decision in plain language.
Bewertet nach
- Feature engineering (signal to honest numbers)25%
- Held-out evaluation (honest measurement)25%
- Cost-based threshold decision + memo25%
- Compact model + embedded-budget justification15%
- Plain-language explanation10%
Bestanden · Bestehensgrenze 60/100
Was herausstach6
- Computed the requested envelope-spectrum band energies and correctly identified BPFO as the dominant defect frequency.
- Trained a depth-capped decision tree on training bearings only and stated both depth and node count against the embedded budget.
- Used held-out metrics and a cost argument in the memo, rather than optimizing for raw accuracy alone.
- Included a clear maintenance-facing explanation tying the 236.4 Hz outer-race peak to the alarm decision.
- Leakage-Free Feature Engineering
- Physics-Grounded Fault Localization
Meine eingereichte Arbeit19 Aufgaben
11 Aufgaben · 6.4k Zeichen · Python · 8 Textantworten · 393 Wörter
- Initial Prediction50 Zeichen
- Load Plot Signal CodePython · 1.9k Zeichen
- Load Plot Signal205 Zeichen
- Example Rms WorkedPython · 698 Zeichen
- Time Features143 Zeichen
- Freq FeaturesPython · 929 Zeichen
- Fault Location239 Zeichen
- Train Classifier363 Zeichen
- Evaluation Heldout287 Zeichen
- Threshold Decision332 Zeichen
- Decision Memo1.3k Zeichen
- Initial Prediction6 Wörter
- Load Plot Signal Code163 Wörter
- Load Plot Signal15 Wörter
- Example Rms Worked72 Wörter
- Time Features10 Wörter
- Freq Features82 Wörter
- Fault Location14 Wörter
- Train Classifier31 Wörter
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