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드럼 세탁기 Spider의 피로수명 신뢰성 평가에 대한 연구
이성민(Seongmin Lee),조상봉(Sangbong Cho),조성진(Seongjin Jo),김영수(Youngsoo Kim),강동우(Dongwoo Kang),정연수(Younsu Jung),정보선(Bosun Chung) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
The spider of a drum washing machine receives the repeated fatigue loadings during laundering. Although the spider is designed statically safely, it often happens fatigue failure. Therefore it requires the safe design for fatigue and needs the prediction of quantitative fatigue life. The S-N diagram for a spider material is developed by fatigue test and statistical analysis. The stresses are measured directly from strain gages on the spider. To predict the fatigue life of spider, the rainflow counting method and Miner"s rule are used. The data for fatigue life are analyzed statistically. From these data, reliability estimation for fatigue life can be done and also, equivalent fatigue life can be obtained. It will be applied to make and improve to a short period for design and prototype test.