کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1722808 | 1014743 | 2009 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nonlinear Fluid Damping in Structure-Wake Oscillators in Modeling Vortex-Induced Vibrations
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Nonlinear Fluid Damping in Structure-Wake Oscillators in Modeling Vortex-Induced Vibrations Nonlinear Fluid Damping in Structure-Wake Oscillators in Modeling Vortex-Induced Vibrations](/preview/png/1722808.png)
چکیده انگلیسی
A Nonlinear Fluid Damping (NFD) in the form of the square-velocity is applied in the response analysis of Vortex-Induced Vibrations (VIV). Its nonlinear hydrodynamic effects on the coupled wake and structure oscillators are investigated. A comparison between the coupled systems with the linear and nonlinear fluid dampings and experiments shows that the NFD model can well describe response characteristics, such as the amplification of body displacement at lock-in and frequency lock-in, both at high and low mass ratios. Particularly, the predicted peak amplitude of the body in the Griffin plot is in good agreement with experimental data and empirical equation, indicating the significant effect of the NFD on the structure motion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrodynamics, Ser. B - Volume 21, Issue 1, February 2009, Pages 1-11
Journal: Journal of Hydrodynamics, Ser. B - Volume 21, Issue 1, February 2009, Pages 1-11