有限元法

The electric-field and potential distribution along a post insulator under dry and clean conditions are calculated through the Finite Element Method.and three principles about model building are presented.In theprocess of solid modeling.the post insulator is simplified to a 1/2 area model because of its axial symmetryt and anannular area is innovatively presented to represent the field at infinity.W hen area meshing.the metallic fittings ofthe insulator are omitted.

为解变电站支柱绝缘子表面电场分布及RTV涂料、增爬裙的影响，用有限元法计算了洁净条件下支柱绝缘子的电场和电势分布规律，提出了模型建立的三原则--根据轴对称性简化模型；采用环形区域作为无限远求解区域；不剖分绝缘子的金属附件。

At the same time, the gas flow acting on the keyhole is simulated by finite element method. The gas flow fields of pneumatic circumferential motion and pressure distribution nephograms around and in the keyhole are obtained. Analysis shows that when plasma is blown backwards i.e., in direction towards the trailing edge of the weld pool, plasma can be eliminated better.

利用有限元法对激光焊接时保护气体在小孔内部和表面气流状况进行了数值模拟，通过对不同焊接条件下模拟形成的小孔气动扰流的气流场和压力分布云图的分析，解释了采用逆向侧吹保护气体吹除等离子体的方法，可以更有效地抑制等离子体云的产生，防止小孔塌陷，有利于维持小孔的稳定性。

A composite laminate with bonded piezoelectric film as sensor under uniaxilstretching is analyzed by means of modified quasi threed-dimensional finite element method.

用修正的准三维有限元法分析了受单轴拉伸表面覆盖有压电薄膜的复合材料层合板。

Filament winding construction Rocket engine case Finite element method

缠绕结构；火箭发动机壳体；有限元法

We optimized worktable, movable beam and top beam of MPF press respectively by finite element and Sub-problem optimized arithmetic, which are also important content in the thesis .

利用有限元法和 Sub-problem 优化算法，分别对多点成形压力机的工作台、活动横梁和上横梁进行结构优化设计，也是本文的主要研究内容。

This paper is based on the former research taking the No.1 Tong-Lv Bridge as an example; the large universal finite element program Midas/Civil is adopted, a three-dimensional finite element model is established. The static performance, the comparative analysis of influence surfaces, the experimental study and the analysis of a local finite element model of the new style three-span continuous through type bow-string arch bridge is made. With these studies, this paper is aimed at revealing the performance of this kind of construction.

本文在前人研究的基础上，以通吕一号桥为背景，采用空间有限元法对结构形式新颖的三跨连续下承式系杆拱桥的静力性能、影响面比较分析、实桥荷载试验、局部节点分析等进行研究，旨在深入理解该结构形式桥梁的力学性能，为今后相同结构体系桥梁的结构分析提供可以参考的建议。

Finite element analysis method was used to analyze a three-leaf spring under vertical loads, in which the brick element of eight nodes was used to model the spring leaves and the contact analysis was introduced to simulate the process of the leaves gradually coming into contact with each other.

应用有限元法对一种在垂直力作用下的3片式钢板弹簧进行分析，其中应用8节点块单元对板簧进行实体建模，采用接触分析来模拟板簧各片逐渐进入接触的情况。

Rotating three-faced beryllium mirror ; structural strength and deformation magnitude of surface ; modal analysis ; finite-element method

超高速摄影；三面体铍转镜；结构强度与镜面变形量；振动模态分析；有限元法

On the basis of the reasonable definition of column′s surface temperature in fire, finite element method is applied to calculate the temperature field of high strength concrete filled steel tubes under high temperature,and the calculated results fit with those of test very satisfactorily.

在合理地确定了火灾情况下钢管高强混凝土柱受火模型的基础上，利用有限元法计算钢管高强混凝土在火灾情况下的温度场。

The finite element method of design of the vehicle frame of sugar cane planter based on 3D solid element is introduced.

简述了基于3D实体单元的2CZ-21型甘蔗种植机机架设计有限元法。

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％。