Frequency-Volume Optimization of Arch-Dams using Charged System Search Method

Abstract

This paper presents a novel multi-objective formulation to investigate optimal shape of double curvature arch dams in dam-reservoir systems considering its volume and natural frequencies. For this purpose, multi-objective charge system search algorithm in combination with multi-criteria tournament decision-making method is utilized. Concrete volume and natural frequencies of dam body are considered as two main objective functions. Numerical modeling and frequency analysis of dam-reservoir system are implemented by developing a parallel-working MATLAB-APDL code. A case study of a well-known arch dam is performed to show the effectiveness and reliability of proposed methodology.