Influences of Hydrodynamic Forces on the Identification of the Rotor-Stator-Rubbing Fault in a Rotating Machinery
المؤلفون المشاركون
Tchomeni, Bernard Xavier
Sozinando, Desejo Filipeson
Alugongo, Alfayo
المصدر
International Journal of Rotating Machinery
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-18، 18ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-12-28
دولة النشر
مصر
عدد الصفحات
18
التخصصات الرئيسية
الملخص EN
Mechanical failures of a complex machine such as rotor widely used in severe conditions often require specialized knowledge, technical expertise, and imagination to prevent its rupture.
In this paper, a model for analyzing excitation of a coupled lateral-torsional vibrations of a shaft system in an inviscid fluid is proposed.
The model considers the recurrent contact of the vibrating shaft to a fixed stator.
The simplified mathematical model of the rotor-stator system is established based on the energy principle.
The dynamic characteristics of the fluid-rotor system are studied, and the features of rub-impact are extracted numerically and validated experimentally under the effects of the unbalance and the hydrodynamic forces.
The main contribution of this article is in extraction and identification of the rub features in an inviscid medium which proved to be complex by the obstruction of the fluid and required the use of appropriate signal processing tools.
The results through a synchrosqueezing wavelet transform indicated that the exciting fluid force could significantly attenuate the instability and amplitude of rubbing rotor.
The experimental results demonstrated that for half the first critical speed, the subharmonic 1/2×Ω and the irregular orbit patterns provide good indices for rub detection in an inviscid fluid of the rotating shafts.
Finally, it is revealed that the instantaneous frequency extraction based on wavelet synchrosqueezing is a useful tool to identify the weak and hidden peak harmonics localised in the time-frequency maps of the fluid-rotor system.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Tchomeni, Bernard Xavier& Sozinando, Desejo Filipeson& Alugongo, Alfayo. 2020. Influences of Hydrodynamic Forces on the Identification of the Rotor-Stator-Rubbing Fault in a Rotating Machinery. International Journal of Rotating Machinery،Vol. 2020, no. 2020, pp.1-18.
https://search.emarefa.net/detail/BIM-1174034
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Tchomeni, Bernard Xavier…[et al.]. Influences of Hydrodynamic Forces on the Identification of the Rotor-Stator-Rubbing Fault in a Rotating Machinery. International Journal of Rotating Machinery No. 2020 (2020), pp.1-18.
https://search.emarefa.net/detail/BIM-1174034
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Tchomeni, Bernard Xavier& Sozinando, Desejo Filipeson& Alugongo, Alfayo. Influences of Hydrodynamic Forces on the Identification of the Rotor-Stator-Rubbing Fault in a Rotating Machinery. International Journal of Rotating Machinery. 2020. Vol. 2020, no. 2020, pp.1-18.
https://search.emarefa.net/detail/BIM-1174034
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1174034
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر