桁架结构

In addition, the vertical stress on every anchor block is identical the same. That is to say , when the external force is balanced, because the upper part of the space truss distribute it on all the anchor block, every one sufficiency display the ability of anti-pulling out.

通过分析还发现，各圈地锚受到的竖向应力基本相同，就是说在平衡外力的时候，每个地锚都充分发挥了抗拔能力，这是因为上部的空间桁架结构很好的将力分配到了每个地锚上。

By comparison with the theoretical solution and published results, the efficiency and practicability of the algorithm are confirmed.

在此基础上，选用经典10杆桁架结构对该算法的寻优能力进行了验证。

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。

The exemplification results showed that the method proposed is really simple, fast and efficient to the topology optimization of structures.

算例的结果表明，该方法用于桁架结构拓扑优化是简单、快速和有效的。

Some key points in designing the roof truss structure were analyzed, including lectotype of structure,load value and calculation method of the main steel members.

对屋盖桁架结构设计中风荷载的取值、屋盖结构的强度、刚度和稳定性分析、主要构件的计算等方面做了深入的工作。

ISO834 and parametric equation approach are lack of pertinence. The results may be too conservative. The temperature obtained by zone model is low, so that it is not suitable for the performance-based fire protection design on this structure. Field model considers the heterogeneity of environmental temperature, and its result is close to the real fire, so that it is commended to the performance-based fire protection design on steel staggered-truss structure.

国际标准升温曲线和参数化室内升温曲线不考虑火源功率、建筑通风口等因素，缺乏针对性，分析结果偏于保守；区域模型所得温度偏低，不宜用于交错桁架结构的性能化抗火设计；场模型考虑了火源功率及环境温度分布的不均匀性，和实际火灾较接近，计算结果相对较为准确，可用于结构的性能化防火设计。

In this thesis, Approximation concept is introduced to analyses the structure shape optimum of the truss.

本文用一种近似的方法对桁架结构进行结构形状优化，以达到节材的目的。

Structural topological optimization method and topological optimization module of the finite-element software ANSYS have been used for the optimum design of the supporting truss structure of stamping box sidewall of the tamping coal charging car.

采用结构拓扑优化方法，利用有限元软件ANSYS的拓扑优化模块对捣固装煤车的煤槽壁支撑桁架结构进行了优化设计。

Based on Artificial Neural Network,the ANN deformation estimatorand ANN shape controller are designed for intelligent truss structures.The currentdeformed state of the structures can be inferred and regulated from a limited numberof on-line measurements and actuations.

基于人工神经网络方法，设计了智能桁架结构的变形估计器和形状控制器，根据系统有限数目的测量值可以估计结构变形并用于形状控制。

The satellite antenna.the deployable structure.the hoop truss structure.the parametric modeling.statics analysis.

卫星天线，可展开结构，环形桁架结构，参数化造型，静力学分析，Pro/Engineer

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。