کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6705753 502911 2016 32 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Vibration and lateral buckling optimisation of thin-walled laminated composite channel-section beams
ترجمه فارسی عنوان
بهینه سازی لرزش و لرزش جانبی لایه های نازک دیواره های کامپوزیتی کانال
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
This study presents vibration and lateral buckling optimisation of thin-walled laminated composite beams with channel sections. While flanges' width, web's height, and fibre orientation are simultaneously treated as design variables, the objective function involves maximising the fundamental frequency and critical buckling moment. Based on the classical beam theory, the beam element with seven degrees of freedom at each node is developed to solve the problem. Micro Genetic Algorithm (micro-GA) is then employed as an optimisation tool to obtain optimal results. A number of composite channel-section beams with different types of boundary conditions, span-to-height ratios, and lay-up schemes are investigated for the optimum design. The outcomes reveal that geometric parameters severely govern the optimal solution rather than the fibre orientation and it is considerably effective to use micro-GA compared with regular GA in term of optimal solution and convergence rate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 143, 20 May 2016, Pages 84-92
نویسندگان
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