دوره 16، شماره 2 - ( 1-1405 )
جلد 16 شماره 2 صفحات 202-185 |
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Jabbari V, Azizian H, Sojoudizadeh R, Rahimi L. A SURROGATE APPROACH FOR ACCURATE ESTIMATION OF STRUCTURAL RESPONSE IN STEEL FRAME OPTIMIZATION. IJOCE 2026; 16 (2) :185-202
URL: http://ijoce.iust.ac.ir/article-1-664-fa.html
URL: http://ijoce.iust.ac.ir/article-1-664-fa.html
A SURROGATE APPROACH FOR ACCURATE ESTIMATION OF STRUCTURAL RESPONSE IN STEEL FRAME OPTIMIZATION. عنوان نشریه. 1405; 16 (2) :185-202
چکیده: (22 مشاهده)
Structural design seeks to achieve optimal performance with minimum cost while meeting code requirements. Evaluating optimized designs usually depends on finite element analysis, which is computationally expensive. Recently, surrogate models have been developed to predict structural behavior more efficiently. Among these, Support Vector Machine (SVM) has become a reliable tool in civil engineering. However, the predictive power of SVM is highly dependent on proper parameter tuning. This study introduces the Improved Electric Eel Foraging Optimization Algorithm (I-EEFO) for training SVM to estimate the response of steel frames. Two benchmark structures, a 2‑story and a 7‑story steel frame, were analyzed, and the results were compared with other metaheuristic algorithms. The proposed method achieved very high accuracy: mean squared errors of 1.11E‑13 for the 2‑story frame and 2.99E‑07 meters for the 7‑story frame over 10 runs. The root mean square errors for displacement prediction on test data were 2.67E‑07 and 7.23E‑04 meters, respectively, confirming reliable estimates. Convergence curves demonstrated that I‑EEFO converges faster and more effectively than competing methods. These findings highlight the potential of the proposed approach as a robust and computationally efficient alternative to traditional simulations, offering engineers a practical tool to reduce costs in structural design without compromising accuracy.
نوع مطالعه: پژوهشي |
موضوع مقاله:
Optimal design
دریافت: 1404/11/13 | پذیرش: 1405/1/18 | انتشار: 1405/1/22
دریافت: 1404/11/13 | پذیرش: 1405/1/18 | انتشار: 1405/1/22
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