PRODUCT RELIABILITY AND AVAILABILITY IN FIELD DATA
KONE is one of the worlds leading elevator and escalator companies. It provides customers with industryleading elevators and escalators and innovative solutions for maintenance and modernization. KONE was established 1910 in Finland. Currently the company has approximately 32,500 employees.Demands for the dependability have risen in the elevator industry during the recent years. The aim of the paper is to introduce a case study that was performed by KONEs reliability and maintenance departments in the beginning of year 2007. The case is about products perceived dependability follow-up. Moreover, a target is to present how reliability data was collected as well as utilized in reliability centered maintenance planning. In this case the starting point for a dependability follow-up was the back reported field data from maintenance actions.One of the main objectives of the case was to construct a new method for modeling the lifetime of a component based on the failure data. In the first phase of the case study, a reliability function was modeled for the studied component by utilizing the Kaplan-Meier estimation method. Both complete and censored lifetime observations were exploited. In the second phase, the cost factors of corrective and preventive maintenance were evaluated. Then, by utilizing the modeled reliability function and simulation software the most suitable maintenance strategy for the component was optimized.The paper summarizes the experiences collected from the methods of the case study. As the second conclusion, requirements and advantages for a systematic dependability follow-up process are outlined. It is generally clarified which are the main challenges to utilize field data, and how back reporting procedures and follow-up tools can be developed in the industry.
Field data Reliability engineering RCM
Nevavuori L
Service Development, KONE Corporation, Myllykatu 3, Hyvink?? 05801, Finland
国际会议
北京
英文
1177-1185
2008-10-27（万方平台首次上网日期，不代表论文的发表时间）