کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
385669 660869 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Machine health prognostics using survival probability and support vector machine
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Machine health prognostics using survival probability and support vector machine
چکیده انگلیسی

Prognostic of machine health estimates the remaining useful life of machine components. It deals with prediction of machine health condition based on past measured data from condition monitoring (CM). It has benefits to reduce the production downtime, spare-parts inventory, maintenance cost, and safety hazards. Many papers have reported the valuable models and methods of prognostics systems. However, it was rarely found the papers deal with censored data, which is common in machine condition monitoring practice. This work concerns with developing intelligent machine prognostics system using survival analysis and support vector machine (SVM). SA utilizes censored and uncensored data collected from CM routine and then estimates the survival probability of failure time of machine components. SVM is trained by data input from CM histories data that corresponds to target vectors of estimated survival probability. After validation process, SVM is employed to predict failure time of individual unit of machine component. Simulation and experimental bearing degradation data are employed to validate the proposed method. The result shows that the proposed method is promising to be a probability-based machine prognostics system.

Research highlights
► Survival analysis and SVM are utilized to develop machine prognostics.
► Failure time of bearing are estimated by survival probability.
► Experimental bearing degradation is employed to validate the proposed method.
► The trained SVM is used to predict failure time of individual bearing.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Expert Systems with Applications - Volume 38, Issue 7, July 2011, Pages 8430–8437
نویسندگان
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