查询词典 truss

The concept of topology optimization of truss structures with discrete variables including two kinds of variables and the relative difference quotient algorithm for discrete optimization are extended to the topology optimization of plate and shell structures composed by plate and shell elements.

将包含两类变量的桁架结构拓扑优化设计的概念及求解离散优化的相对差商法进一步推广到由板壳单元组成的板壳结构的拓扑优化，建立了包含两类变量的板壳结构拓扑优化设计模型，并采用相对差商算法进行求解。

According to the characteristic of the discrete variable structure, the optimization of the space truss is analyzed by the difference-quotient-method.

针对离散变量结构的特点，本文采用差商法对网架结构进行优化设计。

The internal forces and the displacement of the shell can be calculated by space truss method.

国外的研究往往集中在结构形式的探讨和工程的介绍方面。

Insein Bridge in Myanmar undertaken by the Company is a double tower, double cable plane, and three-span steel truss cable-stayed bridge with the full length of 581m .

公司具有承接各种大型钢桁架桥的制造、施工能力，所承建的最长的钢桁架桥为双向双车道，全桥总长1200米；承建的缅甸英申大桥全长581米，为双塔双索面三跨钢桁斜拉桥；承建的桥面最宽的桥梁为缅甸的玛哈邦多拉大桥，为双向六车道的双塔双索面斜拉桥；承建的钢桁悬索桥最大跨径500米，双向双车道。

Stiffness matrix of an elementary bar and total stiffness matrix were deduced and the program for 3D-truss analysis was developed using Fortran computer language according to flow chart of finite element analysis.

作者在有限元理论的基础上，推导了杆单元的单元刚度矩阵和总体刚度矩阵，并根据有限元分析流程，用FORTRAN语言编制了三维桁架结构的有限元分析程序模块。

Main Products: various types of high strength bolts nut, M20 ~ M100 wholesale gross nut, M16 ~ M30 high-strength nuts, plum mine bolts, fish bolts, truss bolts, bucket-type bolts, side head bolt, expansion bolt , steel large hexagon bolt with hexagonal bolts, expansion bolts, special bolts, loader bridge bolts, rivets and so on.

各种型号的高强度螺栓螺母，批发M20～M100的毛螺母，M16～M30高强度螺母，矿用梅花螺栓，鱼尾螺栓，网架螺栓，斗型螺栓，方头螺栓，膨胀螺栓，钢结构大六角螺栓，内六角螺栓，膨胀螺栓，异形螺栓，装载机桥螺栓，铆钉等。

The loading capacity and failure mode of the testing truss were provided in this paper, proving the loading capacity is large and the stiffness is good.

本文通过简单的竖向荷载悬挂施加外力，通过分级加载的方式找出了其极限承载能力与极限变形，结果是可信的。

The balancing condition of plane joint-force system is that force polygon must be closed.The graphic solution and AUTO CAD tool of computer can be applied to obtain two forces on a nodepoint fast and accurately,then internal force of truss can be obtained.

摘 要 一个平面汇交力系的平衡条件是其力多边形必须闭合，依其条件，利用图解法和计算机中的AUTO CAD绘图工具，迅速准确地求解一个结点上的两个未知力，并以其类推求解桁架各杆内力。

A method for truss damage detection is proposed based on measured frequency response function and principal component analysis.

提出了利用实测频响函数及主元分析进行网架损伤识别的方法。

Therefore an entire geometrical non-linear finite element theory for the structure made of beam, truss and cable elements is established.

磁流变阻尼器克服了现有减震设施存在的橡胶老化、金属锈蚀等问题，具有结构简单、能耗少、出力大、响应速度快等优良特性。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。