有限元法

ABSTRACT This paper is mainly concerned with the reliability analysis of a gravity abutment of an arch dam based on conception of reliability.

再与可 靠度理论相结合，考虑变量的随机特性，通过随机有限元法建立荷载效应与基本随机变量之间的关系。

Study on Three-dimension Seepage and Abutment Stability of Jinping High Arch Dam;2. This paper deals with the application of finite element method in the study of seepage field of sluice foundation.

应用有限元法对闸基渗流场进行计算，在计算过程中考虑排水效果和泥沙淤积的影响，得出渗流场的数值解，进而计算静水池的浮托稳定性，最后可确定静水池浮托稳定条件下的安全运用水头。

Then nonlinear constructive relationship and failure criterion combined with 3D dynamical finite element analysis is applied to the arch darn and abutment considering static loads and seismic loads.

采用非线性本构模型和破坏准则，结合三维动力有限元法对江坪河高拱坝在静荷载和地震联合作用下的响应进行非线性分析。

seepage ; drainage hole ; air element ; finite element method ; simulation

当以有限元法做渗流场分析时，若考虑排水孔的尺寸效应，以四边形或

Arch bridge ; arch rib sloping angle ; dynamic performance ; finite element method

拱桥；拱肋倾角；动力性能；有限元法

Nonlinear finite element method was used to analyze the distribution of the stress and strain on each part of the angle steel during the cold roll forming process, and the deformation pattern of metal during the cold roll forming process was revealed.

采用非线性有限元法对冷弯成型过程中角钢各部位的应力、应变分布情况进行分析，并揭示了角钢在成型过程中金属的变形规律。

Keywords : ball screw; temperature field; thermal distortion; numerical simulation; finite element

中文关键词：滚珠丝杠；温度场；热变形；数值模拟；有限元法

Used the finite element method computation pipe network resistance thus obtains the ballast water system the line pressure distributed situation. The paper also has carried on the computation to the ballast tank hydraulic loss and has provided the theory basis to the ballast pump optimized design. The overpressure to the ballast tank has been carried on the discussion. The paper also gets the function between the rated flow and the rated pressure of the pump on ships whose BW pipe net is uniform and line is different, which provides a new method for the selection of BW pump.

文章重点讨论了船舶压载水系统的水力计算，使用有限元法计算管网阻力从而得到压载水系统的管路压力分布情况；文章还对压载舱的水力损失进行计算，对压载水泵的优化设计提供了理论依据；文章还对压载水舱过压问题进行讨论；文章对压载水系统相同而航线不同的船舶，利用最小二乘法得到其压载水泵额定流量和额定压头之间的函数关系，为压载水泵的设计和选型提供了新的方法。

At last, on the basis of the constitution and work principle of brake staff, using friction tester as a testing platform, temperature measure device for the brake pad is developed, and the test data are analyzed.

本文首先对制动器和刹车片进行了简单介绍，然后从传热学的理论出发，分析了刹车片制动过程中热量产生机理，并用有限元法对刹车片的温度场进行了简单分析，最后在对制动器的结构和工作原理进行分析的基础上，运用摩擦试验机作为试验平台，研制出刹车片的温度测量装置，并对测量结果进行了分析。

The factors to influence fatigue life of chain plate are concluded by experimental methods.

用试验方法确定了挤孔对链板疲劳寿命的影响，从理论上分析了在最佳挤孔量下，链板疲劳寿命提高的因素，用有限元法计算了 16 A链板的最佳挤孔量，并与试验结果进行了比较。

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％。