한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제19권3호
  • /
  • Pages.52-58
  • /
  • 2002
  • /
  • 1225-9071(pISSN)
  • /
  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

회전 기계 고장 진단을 위한 최근접 이웃 분류기의 기각 전략

Rejection Scheme of Nearest Neighbor Classifier for Diagnosis of Rotating Machine Fault

  • 최영일 (전남대학교 대학원 기계공학과) ;
  • 박광호 (전남대학교 대학원 기계공학과) ;
  • 기창두 (전남대학교 기계공학과)
  • Choe, Yeong-Il (Dept.of Mechanical Engineering, Graduate School of Chonnam National Universityisy) ;
  • Park, Gwang-Ho (Dept.of Mechanical Engineering, Graduate School of Chonnam National Universityisy) ;
  • Gi, Chang-Du (Dept.of Mechanical Engineering, Chonnam National Universityisy)
  • 발행 : 2002.03.01
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초록

The purpose of condition monitoring and fault diagnosis is to detect faults occurring in machinery in order to improve the level of safety in plants and reduce operational and maintenance costs. The recognition performance is important not only to gain a high recognition rate bur a1so to minimize the diagnosis failures error rate by using off effective rejection module. We examined the problem of performance evaluation for the rejection scheme considering the accuracy of individual c1asses in order to increase the recognition performance. We use the Smith's method among the previous studies related to rejection method. Nearest neighbor classifier is used for classifying the machine conditions from the vibration signals. The experiment results for the performance evaluation of rejection show the modified optimum rejection method is superior to others.

키워드

참고문헌

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