Characterization of fault size in bearings

Matan Mendelovich, Yitschak Sanders, Gideon Kogan, Mor Battat, Renata Klein, Jacob Bortman

نتاج البحث: فصل من :كتاب / تقرير / مؤتمرمنشور من مؤتمرمراجعة النظراء

ملخص

Bearings are important components in rotating machines. An initial small damage in the bearing may cause a fast degradation, which may lead to the machine breakdown. The health condition of bearings can be monitored using proven vibro-acoustic methods effective for detecting bearing faults. However, the existing bearing health indicators do not provide a reliable estimation of the fault characteristics, such as fault size and fault location. As a result, the ability to assess the severity of the bearing damage and to make maintenance decisions is limited. The presented study is a part of an ongoing research on bearing prognostics, aimed to improve the understanding of the effects of fault size on the bearing dynamics. The research methodology combines dynamic modeling of the faulty bearing with experimental validation and confirmation of model simulations. In the presented study, small faults (starting from 0.3 mm), simulating incipient damage are generated at increasing sizes by an electrical discharge machine. The recorded vibration data is then analyzed and compared to the vibration signatures predicted by the model. The experimental and the simulation results add new insights on the manifestation of the size of the fault and possible indicators of the damage severity.

اللغة الأصليةإنجليزيّة أمريكيّة
عنوان منشور المضيفPHM 2014 - Proceedings of the Annual Conference of the Prognostics and Health Management Society 2014
المحررونAnibal Bregon, Matthew J. Daigle
الصفحات161-166
عدد الصفحات6
رقم المعيار الدولي للكتب (الإلكتروني)9781936263172
حالة النشرنُشِر - 1 يناير 2014
الحدث2014 Annual Conference of the Prognostics and Health Management Society, PHM 2014 - Fort Worth, الولايات المتّحدة
المدة: ٢٩ سبتمبر ٢٠١٤٢ أكتوبر ٢٠١٤

سلسلة المنشورات

الاسمPHM 2014 - Proceedings of the Annual Conference of the Prognostics and Health Management Society 2014

!!Conference

!!Conference2014 Annual Conference of the Prognostics and Health Management Society, PHM 2014
الدولة/الإقليمالولايات المتّحدة
المدينةFort Worth
المدة٢٩/٠٩/١٤٢/١٠/١٤

All Science Journal Classification (ASJC) codes

  • !!Software
  • !!Health Information Management
  • !!Computer Science Applications
  • !!Electrical and Electronic Engineering

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