李守巨

个人信息Personal Information

教授

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:力学与航空航天学院

学科:工程力学. 计算力学

办公地点:力学楼404

电子邮箱:lishouju@dlut.edu.cn

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Nonlinear identification approach of nonlinear constitutive model of soil material with optimization procedure

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论文类型:会议论文

发表时间:2012-03-19

收录刊物:EI、Scopus

卷号:461

页面范围:686-689

摘要:Model identification of dynamic systems in the vibration engineering field has been followed with interest in recent years. A number of identification techniques on this topic are now available, such as parametric or non-parametric identification methods, time domain or frequency domain estimation approaches, etc. The identification approach of nonlinear constitutive model from input-output measurements is proposed. The inverse problem of material characterization is formulated as parameter identification problem that is solved by using optimization procedure. A set of parameters corresponding to the material property can be determined by minimizing objective function which accounts for experimental data and calculated responses of the mechanical model. The performances of the proposed identification approach were evaluated with simulating data. The effectiveness of identification approach is validated by numerical simulation. The investigation results show that the proposed identification algorithm poses good robustness and high identification precision. ? (2012) Trans Tech Publications, Switzerland.