有限元法

Based on the calculating analysis of nonlinear finite element the stress level method of researching the stability of slopes and confirming the most dangerous sliding plane is proposed.

基于对边坡的非线性有限元分析，提出了一种研究边坡稳定性和确定边坡最危险滑动面的应力水平法，并通过工程实例验证了该法的可行性和实用性。

On these premise, Calculation results of Ansys and the improved elastic theoretic method were compared with actually surveyed. It is shown that finite element modeling and calculating method in the papers can be used to better analyzing bearing behavior of rock-socketed piles.

在这基础上，将Ansys计算结果、弹性理论法计算结果与工程实测结果进行了对比分析，结果表明，本文采用的有限元建模以及计算方法可以较好地对嵌岩灌注桩的承载性能进行分析。

The shape optimization is studied by adopting the domainintegrated method which is based on the calculus of variations during the shape design sensitivity analysis.

探讨了基于变分法的敏度分析在形状优化设计中的应用，提出敏度分析过程中提高速度场求解效率和有限元网格质量的新方法。

In this paper take an unsymmetrical catamaran as an object, used 3-D finite element method and empirical formula for the vibration characteristics of the hull.

本文以一艘不对称双体船为对象，分别采用三维有限元方法及经验公式法对其进行了船体总振动特性分析。

Withthe discretization of a few elements,CEM can lead to a high accuracy.

使用同样数目的自由度，复合单元法的精度远远高于常规有限元。

The finite element and orthogonal collocation method were used to transform these equations to ordinary differential equations and to solve them.

为研究生育酚同系物的色谱分离过程，建立了考虑轴向扩散、液膜传质阻力和内扩散阻力的一般性速率模型，采用有限元和正交配置法求解该模型。

Based on the governing differential equations of the transient problem of temperature fields with phase change, the two-dimensional finite element formula of computing temperature fields around a buried pipeline in permafrost regions are achieved by using Galerkin's method.

根据相变瞬态温度场的控制微分方程，应用Galerkin法推导出计算温度场的二维有限元公式，对中国东北多年冻土区运行30年的加热输油管道土壤温度场进行了计算分析和比较。

The accuracy and efficiency of finite element numerical analysis have close relationship with the mesh quality and density distribution. In order to ensure the hexahedral mesh transition gradually and conformably, a set of 8-refinement based density control templates is proposed newly. The corresponding date structure and template application techniques are also given.

有限元数值分析的精度和效率与网格单元的划分质量以及疏密程度密切相关，针对三维六面体网格单元之间疏密过渡必须平缓和协调的要求，提出了一套基于8分法的六面体网格加密模板，并给出了相应的数据结构和模板应用方式。

Modify the non-conforming nominal derivation of BCIZ element according tothe weak continuity condition,obtained convergent element too.

应用弱连续条件，对法向导数不连续的BCIZ元进行修正，得到了收敛的有限元。

Based on the convex analysis and duality theorem, a kinematic shakedown formulation for 3-D problems is derived.

根据下限定理，通过引入P泛数，并采用应力函数法构造平衡应力场，建立了极限下限分析的有限元数学规划格式。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。