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: plotted and interpreted the faulty waveform, engineered RMS/kurtosis/crest and envelope-spectrum defect-band features, trained a compact depth-1 decision tree on training bearings only, and evaluated it on held-out bearings with catch-rate and false-alarm metrics. The final memo defended a 0.41 alarm threshold using the student’s own cost numbers and correctly localized the fault to the outer race via BPFO.
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
- Used the provided envelope-spectrum helper and correctly found BPFO as the dominant defect band, matching an outer-race fault.
- Trained a very small decision tree (depth 1, 3 nodes) on training bearings only, which fits the embedded-budget constraint.
- Reported held-out catch-rate and false-alarm rate rather than evaluating on the training set.
- Connected the threshold choice to explicit cost figures and stated the cracked ring in plain maintenance language.
- Leakage-Free Feature Engineering
- Honest Held-Out Evaluation
Meine eingereichte Arbeit19 Aufgaben
11 Aufgaben · 6.9k Zeichen · Python · 8 Textantworten · 536 Wörter
- Initial Prediction50 Zeichen
- Load Plot Signal CodePython · 1.8k Zeichen
- Load Plot Signal205 Zeichen
- Example Rms WorkedPython · 697 Zeichen
- Time Features143 Zeichen
- Freq FeaturesPython · 1.2k Zeichen
- Fault Location239 Zeichen
- Train ClassifierPython · 1.3k Zeichen
- Evaluation Heldout288 Zeichen
- Threshold Decision335 Zeichen
- Decision Memo697 Zeichen
- Initial Prediction6 Wörter
- Load Plot Signal Code163 Wörter
- Load Plot Signal15 Wörter
- Example Rms Worked72 Wörter
- Time Features10 Wörter
- Freq Features119 Wörter
- Fault Location14 Wörter
- Train Classifier137 Wörter
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