首先阐述了初始地应力场的有限元反演分析方法和水压致裂法地应力测量方法给出了对小孤山工程适当的地应力场。
The specific work includes:(1) At the first, the finite element inversion analysis method of the initial crustal stress field and the measuring method of hydrofracturing crustal stress were expounded.
基于对智能层合板结构的模态分析，提出由结构的压电模态响应反演瞬态荷载时间历程的有限元方法。
Based on modal analysis to piezoelectric smart laminated plates, a finite inverse algorithm of the time history about impact loads by piezoelectric modal respondence is presented.
基于对智能层合板结构的模态分析，提出由结构的压电模态响应反演瞬态荷载时间历程的有限元方法。
Based on modal analysis of piezoelectric smart laminated plates, an FEM based inverse algorithm of the time history of impact loads by piezoelectric modal respondence is presented.
基于对智能层合板结构的模态分析，提出由结构的压电模态响应反演瞬态荷载时间历程的有限元方法。
Based on the modal analysis of piezoelectric laminated plates, a FEM based inverse algorithm is presented for the time history of impact loads by piezoelectric modal response.
基于对智能层合板结构的模态分析，提出由结构的压电模态响应反演瞬态荷载时间历程的有限元方法。
Based on modal analysis of piezoelectric smart laminated plates a finite element inverse algorithm for identifying the time history of impact loads from piezoelectric modal responses is presented.
结合实际工程，在工程现场进行了立方体混凝土块温升试验和用有限元对其某些温度特性参数进行了反演分析。
Finally, for a practical project, an experiment of temperature field of a cubic concrete block is made on construction site and the back analysis for unknown parameters is carried out.
利用反演得到的岩体力学参数进行有限元正分析所得位移与现场实测结果更加接近。
The displacement calculated by FEM with parameters obtained from back analysis was close to the measured value.
利用反演分析求得的围岩力学参数，应用有限元法对该工程的施工过程围岩稳定性进行了分析计算。
With the offset data obtained by in-situ construction method monitoring, the mechanical feature parameters of surrounding rock are obtained with optimal back-analysis method.
本文以有限元和BP神经网络为基础，进行基坑开挖内力和变形的正反演分析。
The positive-back analysis of the internal forces and deformation of the deep excavation is studied based on the finite element and BP neural network method.
结合实测地应力资料，建立了三维非线性有限元地应力反演分析数值模型，模拟了断层及裂隙密集带。
Based on the measured ground stress data, a 3d non-linear finite element back analysis numerical model for ground stress is set up and the fault and fissure concentrated zone is simulated.
采用八节点的等参单元在空间上进行离散，建立了便于敏度分析的非线性正演和反演的有限元模型，可直接求导进行敏度分析。
The eight-point finite element is used for the discretization in the space system. The finite element model is given, facilitating to sensitivity analysis for non-linear direct and inverse problems.
应用统计模型、混合模型以及三维有限元的计算分析成果，反演了坝体的综合弹性模量；
The general elastic modulus of the dam is back analyzed by using the statistic model, hybrid model and the 3-D FEM analysis result.
应用统计模型、混合模型以及三维有限元的计算分析成果，反演了坝体的综合弹性模量；
The general elastic modulus of the dam is back analyzed by using the statistic model, hybrid model and the 3-D FEM analysis result.
应用推荐