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구분 SCI
연도 ~ 키워드


학술지 기계적 모터 고장 진단을 위한 머신 러닝 기법
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정훈, 김주원
산업경영시스템학회지, v.40 no.1, pp.57-64
16GH1400, 철도차량 주요부품 결함발생 차지상 조기검출 모듈 및 운영기술 개발, 정훈
In order to reduce damages to major railroad components, which have the potential to cause interruptions to railroad services and safety accidents and to generate unnecessary maintenance costs, the development of rolling stock maintenance technology is switching from preventive maintenance based on the inspection period to predictive maintenance technology, led by advanced countries. Furthermore, to enhance trust in accordance with the speedup of system and reduce maintenances cost simultaneously, the demand for fault diagnosis and prognostic health management technology is increasing.The objective of this paper is to propose a highly reliable learning model using various machine learning algorithms that can be applied to critical rolling stock components. This paper presents a model for railway rolling stock component fault diagnosis and conducts a mechanical failure diagnosis of motor components by applying the machine learning technique in order to ensure efficient maintenance support along with a data preprocessing plan for component fault diagnosis. This paper first defines a failure diagnosis model for rolling stock components. Function-based algorithms ANFIS and SMO were used as machine learning techniques for generating the failure diagnosis model. Two tree-based algorithms, RadomForest and CART, were also employed.In order to evaluate the performance of the algorithms to be used for diagnosing failures in motors as a critical railroad component, an experiment was carried out on 2 data sets with different classes (includes 6 classes and 3 class levels). According to the results of the experiment, the random forest algorithm, a tree-based machine learning technique, showed the best performance.
KSP 제안 키워드
Best performance, Data Preprocessing, Data sets, Diagnosis model, Failure Diagnosis, Inspection period, Learning model, Machine Learning Algorithms, Machine Learning technique(MLT), Maintenance cost, Maintenance support