Nonlinear Dynamic Behaviors of Rotated Blades with Small Breathing Cracks Based on Vibration Power Flow Analysis
المؤلفون المشاركون
Xiong, Y. P.
Chen, Zhongsheng
Yang, Yongmin
Xu, Hailong
Tao, Limin
المصدر
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-08-02
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
Rotated blades are key mechanical components in turbomachinery and high cycle fatigues often induce blade cracks.
Accurate detection of small cracks in rotated blades is very significant for safety, reliability, and availability.
In nature, a breathing crack model is fit for a small crack in a rotated blade rather than other models.
However, traditional vibration displacements-based methods are less sensitive to nonlinear characteristics due to small breathing cracks.
In order to solve this problem, vibration power flow analysis (VPFA) is proposed to analyze nonlinear dynamic behaviors of rotated blades with small breathing cracks in this paper.
Firstly, local flexibility due to a crack is derived and then time-varying dynamic model of the rotated blade with a small breathing crack is built.
Based on it, the corresponding vibration power flow model is presented.
Finally, VPFA-based numerical simulations are done to validate nonlinear behaviors of the cracked blade.
The results demonstrate that nonlinear behaviors of a crack can be enhanced by power flow analysis and VPFA is more sensitive to a small breathing crack than displacements-based vibration analysis.
Bifurcations will occur due to breathing cracks and subharmonic resonance factors can be defined to identify breathing cracks.
Thus the proposed method can provide a promising way for detecting and predicting small breathing cracks in rotated blades.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Xu, Hailong& Chen, Zhongsheng& Xiong, Y. P.& Yang, Yongmin& Tao, Limin. 2016. Nonlinear Dynamic Behaviors of Rotated Blades with Small Breathing Cracks Based on Vibration Power Flow Analysis. Shock and Vibration،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1119144
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Xu, Hailong…[et al.]. Nonlinear Dynamic Behaviors of Rotated Blades with Small Breathing Cracks Based on Vibration Power Flow Analysis. Shock and Vibration No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1119144
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Xu, Hailong& Chen, Zhongsheng& Xiong, Y. P.& Yang, Yongmin& Tao, Limin. Nonlinear Dynamic Behaviors of Rotated Blades with Small Breathing Cracks Based on Vibration Power Flow Analysis. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1119144
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1119144
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