{"title":"Prediction of the Remaining Useful Life of L-holder for Continuous Ship Unloader","authors":"Seung-Hun Lee, Dong‐Woo Lee, Jung‐il Song","doi":"10.7736/jkspe.023.015","DOIUrl":null,"url":null,"abstract":"is likely to occur before the end of its designated lifespan. This study aims to examine the possibility of extending the component's lifespan by evaluating the remaining useful life of L-holder, a part of CSU, that has been in use for 20 years. Fatigue load history was predicted by measuring the strain with or without strain at the L-holder part requiring periodic replacement. Through tensile and fatigue tests, the remaining life was evaluated when cracks were not present. In addition, the remaining life in the presence of cracks was evaluated through destructive toughness test and fatigue crack propagation test. Life prediction results based on test cycles were obtained. The proposed guidelines are expected to be helpful for preventing CSU accidents","PeriodicalId":37663,"journal":{"name":"Journal of the Korean Society for Precision Engineering","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Korean Society for Precision Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.7736/jkspe.023.015","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0
Abstract
is likely to occur before the end of its designated lifespan. This study aims to examine the possibility of extending the component's lifespan by evaluating the remaining useful life of L-holder, a part of CSU, that has been in use for 20 years. Fatigue load history was predicted by measuring the strain with or without strain at the L-holder part requiring periodic replacement. Through tensile and fatigue tests, the remaining life was evaluated when cracks were not present. In addition, the remaining life in the presence of cracks was evaluated through destructive toughness test and fatigue crack propagation test. Life prediction results based on test cycles were obtained. The proposed guidelines are expected to be helpful for preventing CSU accidents
期刊介绍：
Journal of the Korean Society for Precision Engineering (JKSPE) is devoted to publishing original research articles with high ethical standard on all aspects of precision engineering and manufacturing. Specifically, the journal focuses on articles related to improving the precision of machines and manufacturing processes through implementation of creative solutions that stem from advanced research using novel experimental methods, predictive modeling techniques, and rigorous analyses based on mechanical engineering or multidisciplinary approach. The expected outcomes of the knowledge disseminated from JKSPE are enhanced reliability, better motion precision, higher measurement accuracy, and sufficient reliability of precision systems. The various topics covered by JKSPE include: Precision Manufacturing processes, Precision Measurements, Robotics and Automation / Control, Smart Manufacturing System, Design and Materials, Machine Tools, Nano/Micro Technology, Biomechanical Engineering, Additive Manufacturing System, Green Manufacturing Technology.
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