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Evaluation of Offshore Wind Turbine Tower Dynamics with Numerical Analysis
المؤلفون المشاركون
Dagli, Begum Yurdanur
Tuskan, Yeşim
Gökkuş, Ümit
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-04-19
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
A dynamic behaviour of a cylindirical wind tower with variable cross section is investigated under environmental and earthquake forces.
The ground acceleration term is represented by a simple cosine function to investigate both normal and parallel components of the earthquake motions located near ground surface.
The function of earthquake force is simplified to apply Rayleigh’s energy method.
Wind forces acting on above the water level and wave forces acting on below this level are utilized in computations considering earthquake effect for entire structure.
The wind force is divided into two groups: the force acting on the tower and the forces acting on the rotor nacelle assembly (RNA).
The drag and the inertial wave forces are calculated with water particle velocities and accelerations due to linear wave theory.
The resulting hydrodynamic wave force on the tower in an unsteady viscous flow is determined using the Morison equation.
The displacement function of the physical system in which dynamic analysis is performed by Rayleigh’s energy method is obtained by the single degree of freedom (SDOF) model.
The equation of motion is solved by the fourth-order Runge–Kutta method.
The two-way FSI (fluid-structure interaction) technique was used to determine the accuracy of the numerical analysis.
The results of computational fluid dynamics and structural mechanics are coupled in FSI analysis by using ANSYS software.
Time-varying lateral displacements and the first natural frequency values which are obtained from Rayleigh’s energy method and FSI technique are compared.
The results are presented by graphs.
It is observed from these graphs that the Rayleigh model can be an alternative way at the prelimanary stage of the structural analysis with acceptable accuracy.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Dagli, Begum Yurdanur& Tuskan, Yeşim& Gökkuş, Ümit. 2018. Evaluation of Offshore Wind Turbine Tower Dynamics with Numerical Analysis. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1115772
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Dagli, Begum Yurdanur…[et al.]. Evaluation of Offshore Wind Turbine Tower Dynamics with Numerical Analysis. Advances in Civil Engineering No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1115772
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Dagli, Begum Yurdanur& Tuskan, Yeşim& Gökkuş, Ümit. Evaluation of Offshore Wind Turbine Tower Dynamics with Numerical Analysis. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1115772
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1115772
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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