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http://dx.doi.org/10.3795/KSME-A.2017.41.10.997

Life Estimation of Elevator Wire Ropes Using Accelerated Degradation Test Data  

Kim, Seung Ho (School of Lift Engineering, Korea Lift College)
Kim, Sang Boo (School of Industrial Engineering and Naval Architecture, Changwon Nat'l Univ.)
Kim, Sung Ho (School of Lift Engineering, Korea Lift College)
Ham, Sung Hoon (R&D Unit, KISWIRE LTD.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.41, no.10, 2017 , pp. 997-1004 More about this Journal
Abstract
The life of elevator wire ropes is one of the most important characteristics of an elevator, which is closely related to the safety of users and its maintenance policy. It is not cost effective to measure the lifetime of elevator wire ropes during their use. In this study, the life estimation of elevator wire ropes (8x19W-IWRC) is considered using accelerated degradation test data. A bending fatigue tester is used to perform the accelerated degradation tests, incorporating the acceleration factor of tensile force. Assuming that the life of wire ropes is log-normally distributed, two life estimation methods are suggested and their results are compared. The first method estimates the life of wire ropes utilizing the accelerated life model with pseudo lives obtained from a linear regression model. The second method estimates the life using a logistic model based on failure probability.
Keywords
Elevator Wire Ropes; ADT(Accelerated Degradation Testing); Pseudo Life; Linear Regression; Logistic Regression;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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