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مقایسه کارایی الگوریتم های دسته ماهی های مصنوعی، تکامل ترکیبی مجموعه ها و نورد شبیه سازی شده در بهینه سازی مقطع سدهای خاکی (مطالعۀ موردی سد برزک) | ||
| تحقیقات مهندسی سازه های آبیاری و زهکشی | ||
| مقاله 8، دوره 18، شماره 68، تیر 1396، صفحه 97-112 اصل مقاله (1004.09 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/aridse.2017.104524.1044 | ||
| نویسندگان | ||
| حسام قدوسی* 1؛ فهیمه وکیلی تنها2 | ||
| 1عضو هیات علمی گروه مهندسی آب دانشگاه زنجان | ||
| 2دانشجوی کارشناسی ارشد سازه های آبی دانشگاه زنجان | ||
| چکیده | ||
| در این مطالعه، عملکرد روشهای بهینهسازی تکاملی برای طراحی مقطع سدهای خاکی ناهمگن بررسی شده است. این روشها عبارتاند از: الگوریتم دسته ماهیهای مصنوعی (AFSA)، الگوریتم تکامل ترکیبی مجموعه (SCE) و الگوریتم نورد شبیهسازی شده (SA). این مسأله بهصورت یک تابع بهینهسازی غیرخطی با اعمال قیود متفاوتی نظیر محدودیتهای پایداری شیب و ابعاد هندسی فرمولبندی شد. متغیرهای طراحی در فرآیند بهینهسازی، پارامترهای هندسی مقطع سد خاکی هستند و قیود ضرایب اطمینان پایداری از نتایج تحلیلهایی مانند تحلیل تراوش و پایداری شیروانیها برای مجموعهای از طرحهای نمونه و بهکمک مدلهای رگرسیونی خطی بهصورت توابعی صریح بر حسب متغیرهای طراحی تعیین گردید. کارایی روشهای بهینهسازی در تعیین نقطۀ بهینه سراسری، بر حسب میانگین عملکرد و متوسط زمان لازم برای محاسبات با یکدیگر مقایسه شد. پس از بهینهسازی ابعاد سد برزک با استفاده از روشهای SCE،AFSA وSA، حجم سد بهمیزان 38، 37 و 30 درصد نسبت به طرح اولیه کاهش یافته است. بر اساس نتایج بهدست آمده، در دستیابی به ابعاد بهینه مقطع سد خاکی روش SCEنسبت به روشهای SAو AFSAکارایی بهتری دارد. | ||
| کلیدواژهها | ||
| بهینه سازی؛ تکامل ترکیبی مجموعه ها؛ دسته ماهی های مصنوعی؛ سد خاکی؛ نورد شبیه سازی شده | ||
| عنوان مقاله [English] | ||
| Performance Comparison of Artificial Fish Swarm, Shuffled Complex Evolution and Simulated Annealing Algorithms in the Optimization of Earth Dams Cross Section (Case Study: Barzok Dam) | ||
| نویسندگان [English] | ||
| Fahime Vakili Tanha2؛ | ||
| چکیده [English] | ||
| In this study performance of evolutionary optimization methods for designing of cross section of heterogeneous earth dams is investigated. The methods applied were Artifical Fish Swarm (AFSA), Shuffled Complex Evolution (SCE) and Simulated Annealing (SA) algorithms. The model consisted of a nonlinear optimization function by applying different constraints such as slope stability constraints and geometrical dimensions. Design variables in optimization process were the geometrical parameters in cross section of earthen dam and stability safety factors constraints were determined as explicit functions according to design variables by using analyses results such as seepage and slopes stability analysis for a set of sample designs by using linear regression models. Efficiency of the optimization methods in identifying the global optimum point was compared according to mean performance and mean time required for calculations. After optimization of dimensions in Barzok dam by using SCE, AFSA and SA methods, dam volume was reduced 38, 37 and 30 percent respectively as compared to the primary design volume. Results showed that SCE method is more efficient than the SA and AFSA methods in achieving the optimal dimensions in cross section of earth dam. Keywords: Artificial Fish Swarm, Earth Dam, Optimization, Shuffled Complex Evolution, Simulated Annealing | ||
| کلیدواژهها [English] | ||
| Artificial Fish Swarm, Earth Dam, optimization, Shuffled Complex Evolution, Simulated Annealing | ||
| مراجع | ||
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