Selbstgesteuertes Projekt
Predictive Maintenance: Industrial ML for Fault Detection
Condition-Monitoring Engineer · KI / ML · August 2026
Eine ProoV-Fallstudie · Lernprojekt, kein Arbeitsverhältnis
Built an end-to-end rolling-bearing fault detector from vibration data: engineered RMS, kurtosis, crest factor, and envelope-spectrum defect-frequency features; trained a compact depth-capped decision tree on training bearings only; and evaluated it on held-out bearings with catch-rate and false-alarm metrics. The candidate also localized the fault to the outer race via BPFO dominance and justified an alarm threshold with explicit maintenance-cost tradeoffs.
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 envelope-spectrum energy around the supplied BPFO/BPFI/BSF/FTF frequencies and correctly identified BPFO as dominant
- Chose a shallow decision tree with stated depth 1 and 3 nodes, explicitly within the embedded budget
- Reported held-out catch-rate and false-alarm rate rather than relying on training performance
- Defended the alarm threshold with concrete euro costs and a plain-language explanation tied to the model's own numbers
- Leakage-Free Feature Engineering
- Honest Model Evaluation
Meine eingereichte Arbeit20 Aufgaben
12 Aufgaben · 8.6k Zeichen · Python · 8 Textantworten · 481 Wörter
- Initial Prediction62 Zeichen
- Example Load Plot HealthyPython · 860 Zeichen
- Load Plot Signal CodePython · 1.8k Zeichen
- Load Plot Signal205 Zeichen
- Example Rms WorkedPython · 698 Zeichen
- Time Features143 Zeichen
- Freq FeaturesPython · 1.1k Zeichen
- Fault Location239 Zeichen
- Train Classifier363 Zeichen
- Evaluation Heldout288 Zeichen
- Threshold Decision335 Zeichen
- Decision Memo2.5k Zeichen
- Initial Prediction9 Wörter
- Example Load Plot Healthy81 Wörter
- Load Plot Signal Code163 Wörter
- Load Plot Signal15 Wörter
- Example Rms Worked72 Wörter
- Time Features10 Wörter
- Freq Features117 Wörter
- Fault Location14 Wörter
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