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[학술저널]

  • 학술저널

김설하(금오공과대학교) 장재호(현진제업) 주백석(금오공과대학교)

DOI : 10.7736/KSPE.2019.36.10.953

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초록

Recently, improvement of productivity of the paper cup forming machine has being conducted by increasing manufacturing speed. However, rapid manufacturing speed imposes high load on cams and cam followers. It accelerates wear and cracking, and increases paper cup failure. In this study, a failure diagnosis algorithm was suggested using vibration data measured from cam driving parts. Among various paper cup forming processes, a test bed imitating the bottom paper attaching process was manufactured. Accelerometers were installed on the test bed to collect data. To diagnose failure from measured data, the K-NN (K-Nearest Neighbor) classifier was used. To find a decision boundary between normal and abnormal state, learning data were collected from normal and abnormal state, and normal and abnormal cams. A few representative features such as mean and variance were selected and transformed to the relevant form for the classifier. Classification experiments were performed with the developed classifier and data gathered from the test bed. According to assigned K values, a successful classification result was obtained which means appropriate failure recognition.

목차

1. 서론
2. 고장내역의 분석
3. 캠 마모 고장 진단 시스템
4. K-NN 분류기를 이용한 고장 진단 알고리즘
5. 분류 결과 분석
6. 결론
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