A study of numerical method for the coefficient identification problem in elastic wave field with real measured data

本文研究了基于有限频率数据的钢-混凝土组合梁损伤识别的数值方法。利用变分方法和Tikhonov型正则化技术求解了约束条件下的最小化问题。将投影梯度型方法应用于该问题，提出了迭代型算法。通过模拟和实际数据的数值实验，验证了该方法的有效性。

In this research, we considered about the numerical method for the damage identification in steel-concrete composite beams by finite frequency data. The minimizing problem with constrained condition was produced by using the variational method and the Tikhonov type regularization technique. We proposed the iterated type algorithm by applying the projected gradient type method to our problem. By the numerical experiment with simulated and real data, we showed the efficiency of our method.