岩土工程弹塑性物性辨识问题数值求解格式

岩土工程弹塑性物性辨识问题数值求解格式 English Version

摘要: 本文提出了求解复杂结构弹塑性物性辨识问题的正则化最小二乘迭代反演算法。给出了差分近似导数的灵敏度计算格式。为克服不适定性带来的困难，并保证解的稳定性和合理性，提出了相应的数值处理方法。
- 物性辨识 /
- 最小二乘法 /
- 正则化 /
- 灵敏度
Abstract: The regularized least square iterative algorithm has been presented for the estimation of material parame-ters of complicated structures. The scheme for calculation of sensitivity coefficients has been given The algorithmhas overcome the difficulties caused by the ill posedness of inverse problems SeveraI techniques have been used toensure rationality of the solution and the stability of the convergence. The numerical examples show that the algo-rithm presented here is practical and efficient.
- identification of material properties /
- least squares methods /
- regularization /
- sensitivity.