有限元法

The operation efficiency of symmetry solution is obviously priors to whole solution.

在有限元法中，不论是理论研究还是应用研究，通常要就其收敛性和对称性问题的有

In this paper, the flow properties of helicopter landing and taking-off region and its influence on flight safety are introduced first, then the flow of flight deck is simulated using finite element method on the basis of Navier-Stokes equations, and the simulated results are compared with test results. The helicopter flight properties on flight deck is discussed, and it is point...

本文首先介绍了直升机舰载起降区域的气流流动特点及其对飞行的影响，然后以纳维—斯托克斯方程为基础，利用有限元法对甲板区域的气流流动进行了仿真计算，并将仿真结果与实验结果做了对比，分析了直升机在该甲板区域内的飞行特点，指出应重视流场对飞行安全的影响。

On root stresses and teeth compliance, the advances in different calculi commented comparatively, then applied prospect of Finite Element Method in the field is emphasized.

本文首先比较研究了齿根应力与轮齿弹性变形的主要计算方法，指出了有限元法的广泛应用前景。

Uncooled infrared detector; Vanadium oxide films; temperature coefficient of resistance; the finite Element Method; porous silicon

信息科技，无线电电子学，光电子技术、激光技术非制冷红外探测器；氧化钒薄膜；电阻温度系数；有限元法；多孔硅

The operators are simple and easy to be implemented in the FEM. The mathematical models for the combination of ABCs and FEM are investigated and established.

其次研究并建立了标量渐近边界条件与有限元法结合的三维开域静磁场的数学模型，并提出具体的实施方法，推导出相应的离散方程。

Container ship ; hull strength ; torsional stress ; finite element methods

集装箱船；船体强度；扭转应力；有限元法

The effect of cross section dimension on propagation characteristics in trapezoid tunnel is analyzed using finite element method.

摘要采用有限元法分析了梯形隧道中横截面尺寸对传输特性的影响。

How to avoid aberration of grid shapes in the air gap region when rotor rotates, however, is the trickiness problem for the finite element method.

但是在转子转动时如何避免气隙区域内网格形状的畸变，是有限元法遇到的棘手问题。

Using truncated cone, circular and triangular models to simulate the contact surface, the thermal contact resistance is calculated based on unstructured Delaunay triangulation gird solution and finite element method.

分别采用截锥体、圆弧形和三角形模型来模拟实际物体的接触面，利用DELAUNAY三角形非结构化网格离散温度场，并使用有限元法数值计算接触热阻。

In this paper, the finite element method is used for overall stability analysis of tall building tubular structures.

本文将有限元法用于高层筒体结构的整体稳定分析。

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％。