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논문 기본 정보

자료유형
학술대회자료
저자정보
손지훈 (영남대학교) 심재술 (영남대학교) 배영화 (피에이치에이) 김우엽 (피에이치에이) 김정재 (피에이치에이) 김청산 (피에이치에이)
저널정보
대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2022년 학술대회
발행연도
2022.11
수록면
2,310 - 2,313 (4page)

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초록· 키워드

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Door latch of automobile is a necessary component for automobile passengers which performs not only Open/Close but also Lock/Unlock. Also, door latch is strongly controlled by automobile safety regulation and requires high reliability. Door latch is exposed to wide range of temperatures due to climate and repetitive load of motor is applied to gears. Therefore, estimation of cumulative failure rate and lifespan under stress condition is necessary. Therefore, in this study, the theoretical Erying model accelerated life anaylsis, which is the zero failure test method, is proposed using Weibull distribution theory under the log relationship between the Weibull distribution and Minimum extreme value distribution. This research investigated various parts inside of latch which is defined failure mechanisms and factors using step of reliability analysis. Also, HALT was performed for acceleration level decision. Failure mechanism of door latch is gear damage due to high/low temperature and repetitive load and applied temperature (-45℃ ~ 100℃) and load (18V, 24V) conditions to accelerate failure. Common shape parameter and scale parameters were derived as a result of multi-levels, factors ALT. By applying Eyring model, lifespan under specific temperature and load condition is estimated. Also, the theoretical and experimental values predicted by regression analysis using the minimum extreme value distribution under the log relationship with the weibull distribution were compared.
As a result, it was confirmed that there was no error in the two values, and it was possible to theoretically predict the multifactor acceleration life.

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Abstract
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2. 이론 및 실험
3. 결론
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