基于观测柔度阵的结构参数识别

Identification of structural parameters based on measured flexibility

针对地震工程学中结构振动控制和抗震安全评价所涉及的结构识别问题，建立了基于观测柔度阵的结构参数识别模型和求解方法。由于参数识别的求解采用直接搜索的全局收敛算法，改善了参数识别的计算条件，程序实现简单。数值模拟结果显示本文的方法能够得到稳定精确地识别结果。

Structural identification involved in the field of structural control and seismic safety assess- ment has been becoming an active research topic at present. A method of identification of structural parameters based on measured flexibility was presented in this paper. By the global optimal a1gorithm to solve the identified parameters directly, the condition of the identification was im- proved. The proposed method does not need to compute the gradient matrix of the stiffoess which makes the programming diffculty. The numerica1 examp1es demonstrate that the proposed method can obtain the stable and accurate results of identification.