Importance analysis deals with the influence of individual system component on system operation. Thus, a lot of failure data should be collected to make the analysis more accurate. This paper mainly focuses on the numerical estimation of component importance in complex mechanical system which is considered as a multi-state system with few failure data. In order to evaluate components’ failure probability distribution by small sample data, a time integral importance measure (TIIM) approach is proposed. In this measure, we aim to measure component importance using the change of system performance caused by wiping off component failure data. On this basis, the dynamic importance fluctuation of a component can be measured by calculating criticality of each state of the component. The approach has been verified by probability analysis of CNC machine tools. The main contribution of this work is the proposed dynamic importance measure which can be used to identify the key state of a component that influences system performance most by small-sample data.
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ASME 2018 13th International Manufacturing Science and Engineering Conference
June 18–22, 2018
College Station, Texas, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5137-1
PROCEEDINGS PAPER
Dynamic Importance Analysis of Components of Complex Mechanical System by Small Sample Data
Li Yangfan,
Li Yangfan
Xi'an Jiaotong University, Xi'an, China
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Zhang Yingjie,
Zhang Yingjie
Xi'an Jiaotong University, Xi'an, China
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Dai Bochao,
Dai Bochao
Xi'an Jiaotong University, Xi'an, China
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Zhang Lin
Zhang Lin
Xi'an Jiaotong University, Xi'an, China
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Li Yangfan
Xi'an Jiaotong University, Xi'an, China
Zhang Yingjie
Xi'an Jiaotong University, Xi'an, China
Dai Bochao
Xi'an Jiaotong University, Xi'an, China
Zhang Lin
Xi'an Jiaotong University, Xi'an, China
Paper No:
MSEC2018-6316, V003T02A033; 10 pages
Published Online:
September 24, 2018
Citation
Yangfan, L, Yingjie, Z, Bochao, D, & Lin, Z. "Dynamic Importance Analysis of Components of Complex Mechanical System by Small Sample Data." Proceedings of the ASME 2018 13th International Manufacturing Science and Engineering Conference. Volume 3: Manufacturing Equipment and Systems. College Station, Texas, USA. June 18–22, 2018. V003T02A033. ASME. https://doi.org/10.1115/MSEC2018-6316
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