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Free vibration analysis of concrete arch dams by quadratic ideal-coupled method
Mohammad Rezaiee-Pajand,Ahmad Aftabi Sani,Mohammad Sadegh Kazemiyan 국제구조공학회 2018 Structural Engineering and Mechanics, An Int'l Jou Vol.65 No.1
This paper is devoted to two new techniques for free vibration analysis of concrete arch dam-reservoir systems. The proposed schemes are quadratic ideal-coupled eigen-problems, which can solve the originally non-symmetric eigen-problem of the system. To find the natural frequencies and mode shapes, a new special-purpose eigen-value solution routine is developed. Moreover, the accuracy of the proposed approach is thoroughly assessed, and it is confirmed that the new scheme is very accurate under all practical conditions. It is also concluded that both decoupled and ideal-coupled strategy proposed in the previous works can be considered as special cases of the current more general procedure.
Free vibration analysis of concrete arch dams by quadratic ideal-coupled method
Rezaiee-Pajand, Mohammad,Sani, Ahmad Aftabi,Kazemiyan, Mohammad Sadegh Techno-Press 2018 Structural Engineering and Mechanics, An Int'l Jou Vol.65 No.1
This paper is devoted to two new techniques for free vibration analysis of concrete arch dam-reservoir systems. The proposed schemes are quadratic ideal-coupled eigen-problems, which can solve the originally non-symmetric eigen-problem of the system. To find the natural frequencies and mode shapes, a new special-purpose eigen-value solution routine is developed. Moreover, the accuracy of the proposed approach is thoroughly assessed, and it is confirmed that the new scheme is very accurate under all practical conditions. It is also concluded that both decoupled and ideal-coupled strategy proposed in the previous works can be considered as special cases of the current more general procedure.