中文摘要：

微分演化算法（DE）是一种启发式算法,它对于解决复杂的优化问题有很好效果。它构成简单,使用方便,收敛速度快,求解有效,并且有很好的鲁棒性。本文把DE算法运用到了结构体系的参数估计中,可以描述为一个多维优化问题。本文在无噪声干扰和有噪声干扰的情况下,用所提出的方法来识别非线性结构体系,结果表明了此方法的有效性。

英文摘要：

Differential evolution （DE） is a heuristic method that has yielded promising results for solving complex optimization problems. The potentialities of DE are its simple structure, easy use, convergence property, quality of solution, and robustness. This paper utilizes a DE strategy to parameters estimation of structural systems, which could be formulated as an optimization problem. Simulation results for identifying the parameters of non-linear structural systems under conditions including noise polluted signals, are presented to demonstrate the effectiveness of the proposed method.