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Crack detection in a rotor dynamic system by vibration monitoring
Joint Authors
Source
Issue
Vol. 16, Issue 2 (30 Jun. 2010), pp.5116-5128, 13 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2010-06-30
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Topics
Abstract AR
اكتشاف الشقوق أو العيوب في الأنظمة الديناميكية الدوارة من خلال مراقبة الاهتزازات يعتبر ذو أهمية كبيرة و قد استخدمت في عملية التحليل هذه نموذجين هما نموذج لشق شامل على طول العمود و الآخر نموذج لشق موقعي أي في مكان محدد من العمود و ذلك لغرض تحديد صفات استجابة و التي تدلل على وجود شق عرضي في العمود و إن هذا التحليل طبق على نوعين من الأعمدة الدوارة من حيث الشروط الحدودية هما (Clamped-Free) و (Simply-Supported) و لأعماق مختلفة (0 %, 10 %, 20 %, 30 %) من قطر العمود حيث تم تمثيل بزيادة في مرونة العمود الدوار.
كذلك بينت النتائج بوجود الشق يكون النظام غير مستقر عند سرع دورانية معينة.
Abstract EN
Vibration monitoring is one of the most important techniques which are used to detect the cracks or defects in rotating mechanical systems.
To distinguish characteristics of the system response that may lead to the transverse crack in rotating shaft, local asymmetry crack model is used where crack simulated by increasing the flexibility of the shaft and transverse crack in the shaft is introduced.
The obtained results showed a decreasing in the resonance shaft speed with increasing the crack depth ratio.
The feature is used for diagnostics the crack in the shaft by using the graphed results between the natural frequency and shaft speed.
The method of detecting was applied for several crack depth ratios (uncracked, % 10, % 20 and % 30) in a clamped-free rotor.
Also for investigating the effect of position of crack and effect of mass location, a crack and mass with different locations are introduced in the shaft.
Although, the presence of a transverse shaft crack has also been shown to induce an unstable response for some shaft speeds and the behavior of the 2x harmonic component of the system response is effective target observation for a monitoring system.
American Psychological Association (APA)
Nabil, H. H.& Jawad K. Z.. 2010. Crack detection in a rotor dynamic system by vibration monitoring. Journal of Engineering،Vol. 16, no. 2, pp.5116-5128.
https://search.emarefa.net/detail/BIM-288419
Modern Language Association (MLA)
Nabil, H. H.& Jawad K. Z.. Crack detection in a rotor dynamic system by vibration monitoring. Journal of Engineering Vol. 16, no. 2 (Jun. 2010), pp.5116-5128.
https://search.emarefa.net/detail/BIM-288419
American Medical Association (AMA)
Nabil, H. H.& Jawad K. Z.. Crack detection in a rotor dynamic system by vibration monitoring. Journal of Engineering. 2010. Vol. 16, no. 2, pp.5116-5128.
https://search.emarefa.net/detail/BIM-288419
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 5128
Record ID
BIM-288419