کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5014505 1463299 2017 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bending and torsional reconfiguration of chiral rods under wind and gravity
ترجمه فارسی عنوان
خم شدن و اصلاح مجدد دنده های کیرال تحت باد و جاذبه
کلمات کلیدی
تنظیمات کاهش کشیدن، پیچ خوردگی تغییر شکل بزرگ، خم شدن لحظه خم شدن ریشه، میله کرچوف،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
We seek to understand the effect of chirality on the reconfiguration and the self-buckling strength of chiral plants subjected to wind and gravity by experimental and theoretical modeling of their large deformation. Chiral rod and ribbon specimens are made of polyurethane foam reinforced with nylon fibers and ABS plastic. Wind tunnel tests are performed to evaluate the effect of chirality on flow-induced reconfiguration. A theoretical model is developed by coupling the Kirchhoff rod theory with a semi-empirical formulation for aerodynamic loading evaluation. A range of geometrical, material and flow parameters are studied in the experimental and theoretical model. It is shown that for rods, chirality decreases the maximum root bending moment. For ribbons, chirality leads to a trade-off with higher self-buckling strength but also higher root bending moment. Moreover, chirality reduces the effect of the loading direction on deformation. Chirality plays an important structural role in the interaction of slender structures with fluid flow and gravity loading.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Extreme Mechanics Letters - Volume 13, May 2017, Pages 91-99
نویسندگان
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