查询词典 finite element method

Finite element limit analysis method has the advantage of combining numerical analysis method with traditional limit equilibrium methods.

有限元极限分析法兼有数值分析法与经典极限分析法两者的优点，特别适用于岩土工程的分析与设计。

First, buckling collapse models were discussed, and the analysis on the stability of rock slope was carried out through rigid body limit equilibrium method and finite element method.

首先，对岩质边坡的失稳破坏的模式进行探讨，用刚体极限平衡法和有限单元法对岩质边坡进行稳定性分析。

It is very practical for geotechnical engineering design.Fundamentals of the limit state finite element method are discussed in this paper,such as the definition of safety factor and the selection of yield criteria.Through a series of case studies,the applicability of the proposed method is demonstrated.

本文探讨了极限分析有限元法的一些基本原理，包括安全系数的定义、岩土体整体失稳的判据、屈服准则的选用等，并将该方法应用于边坡、地基、隧道稳定性计算，算例表明了此法的可行性，拓宽了该方法的应用范围

A new method of slope stability, limit equilibrium finite element method based on Dijkstra algorithm, was established by applying the improved Dijkstra algorithm which was an algorithm to seek the shortest path in graph theory to search for the minimum safety factor of slopes and the position of most dangerous sliding plane.

通过引入图论中解决最短路问题的Dijkstra算法到搜索边坡最危险滑动面及其安全系数中去，对Dijkstra算法作了一定的改进，建立了一种新的边坡稳定性分析方法―基于Dijkstra算法的极限平衡有限元方法。

This paper surveys a new exact method which uses exact dynamic stiffnesses and therefore results in a nonlinear eigenvalue problem in contrast to the traditional finite element method which reduces the problem into a linear algebraic eigenvalue problem by using approximate shape functions.

与常规有限元方法采用近似形函数将原问题化为线性特征值问题不同，本文的精确方法从杆件精确的形函数出发获得精确的动力刚度，将原问题化为非线性特征值问题。

Analyzed on the tunnels that used EPB method in different soils, the more logical three-dimensional finite element model is based, which can reality represented the soil transfiguration. 3 Due to the engineering example, a 3D FEM simulation model was founded. The model was used to study the rules of soil deformation and surface settlement during shield tunneling. 4 The characteristics of loess include the module, conglutination force and inner friction angle of the loess, affected the soil deformation. 5 The influence factors to the surface settlements such as the depth of soil, the outer diameter of the shield tunnel, the released stress at the cutting face, the fill ratio of the shield tail void, pouring-slurry press, thrusts and lengths of shield and digging steps were studied using the FEM method. References is brought forward in the loess areas of Xi'an was proposed.

通过对不同土质条件下盾构法进行地铁隧道施工的有限元分析，全面反映盾构推进对土体变形的影响情况； 3根据有关勘测资料，建立合理的盾构法施工三维非线性有限元模型，对盾构法施工引起的地层变位和地表位移情况进行计算，分析了盾构施工引起的地层变形规律和地面沉降规律； 4研究了黄土特性(地基模量、粘聚力和内摩擦角)对盾构法施工中土体变形的影响； 5利用三维有限元对盾构施工过程中影响地面沉降的因素(覆土厚度、隧道外径、开挖面压力变化量、注浆压力、盾尾空隙填充率、开挖步长、盾构机的长度和推进力等)进行研究，为今后西安地区地铁的建设提供参考。

A conservative remapping algorithm based on donor-cell method for multiscale dynamic simulation is proposed which couples micro molecular dynamics simulation with macro finite element method.

针对耦合微观分子动力学和宏观有限元方法的多尺度模拟，提出一类新的基于贡献单元法的网格守恒重映算法。

Two car parts were meshed using the proposed method, and they indicate this method can apply to finite element analysis.

多个复杂汽车钣金零件网格剖分的结果表明，运用提出的方法完成的网格模型质量很高，能够应用于有限元仿真计算。

During the pre-processing of the finite element analysis, the interactive subdivision method which combines the computer's high efficiency with human's intelligence is realized. The dummy node method, which is used to solve the subdivision problem about multiply connected region and the region with isolated verge combining the optimization algorithm in topology, is brought forward for the first time in this dissertation.

在有限元分析的前处理中，本文实现了既充分利用计算机的高效性又融合了人工干预的灵活性的交互式网格生成算法，并且首次提出虚拟节点法，结合图论优化算法解决了多连通域及包含孤立边界的任意形状目标区域的网格自动生成问题。

At the end of this paper, perpendicular design calculation of non -linear finite element method is used to evaluate slope reliability. The results are compared with those of Monte-Carlo method, Their difference is small.

提出了非线性有限元法的正交设计计算用于评价边坡工程的可靠性，将其结果与Monte—Carlo计算结果进行了详细比较，二者具有很好的一致性。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。