查询词典 hexahedral

An HPTR 60-160 CRP mill was developed and produced for an Indian pipe producer in 2004. For the first time the problem of making square and hexahedral pipes using blanks with a diameter of more than 120 mm was solved.

印度管材公司在2004年研发生产了一台HPTR 60-160冷轧管机组，这是首次解决使用废料制作直径大于120毫米方形和六面体管的问题。

As a result, the conclusions are drawn that it is hardly possible to automatically recreate the hexahedral elements with satisfied quality on an arbitrary 3D solid model, since the algorithm relates on how to handle many specific problems, such as geometric singularities and degeneration.

结论指出，基於在任意几何形状的三维实体上实现全自动生成满足要求的六面体网格的通用算法非常复杂和困难，涉及许多具体的特殊问题的处理，而且基於畸变后边界节点生成满足拟合精度的几何实体也是如此。

We obtain three classes of polyhedra which have high symmetry. they are regular tetrahedral class belonging to tetrahedral group , regular hexahedral class and regular octahedral class belonging to octahedral group.

本文将Goldberg在正十二面体上构筑多面体的方法推广到其它柏拉图多面体上，分别得到了三类具有较高对称性的多面体：属于四面体群的正四面体类和属于八面体群的正六面体类、正八面体类。

By analyzing the problem of hydrological 3D spatial dispersion in 3D finite differential numeric simulation of porous groundwater flow, as well as discontinuous spatial distribution and asymmetric thickness of porous aquiferous strata and partitive groundwater stratum, the paper presents the GIS-based technique of 3D spatial dispersion of porous aquiferous stratum system. Besides, the paper puts forward the 3D spatial dispersion method of irregular hexahedral unit based on GIS to guarantee to the greatest degree the uniqueness of the stratum types among the dispersed units and improve the precision of 3D spatial dispersion.

分析了目前孔隙地下水流三维有限差分数值模拟中对含水层系统三维空间离散存在的问题，针对自然界孔隙含水层与隔水层空间分布的不连续性与厚度的不均匀性，研究了基於GIS的孔隙含水层系统三维空间离散实现的技术路线，提出了基於GIS与不规则六面体元的孔隙含水层系统的三维空间离散方法，最大限度地保证了离散体元中含水层类型的单一性，提高了孔隙地下水流模拟模型三维空间离散的精度。

A three-dimensional model of rotor was built based on ANSYS, and analyzed with hexahedral SWEEP mesh method. Furthermore, a numerical simulation for Polyoxymethylene rotor's intensity and stiffness was carried out by using quasi-dynamic model method, and the stress and strain data of the rotor at six operating points were derived.

基于ANSYS有限元软件，建立了转子三维模型，并对其进行了六面体SWEEP网格划分；采用准动态模拟方法对非金属材料的聚甲醛转子强度、刚度进行数值模拟计算，得到了6个工况点中转子应力及变形数据。

Based on studying numerous algorithms of automatic mesh generation and concluding their advantages and disadvantages, combined advancing front algorithm, paving algorithm, plastering algorithm and other mesh generation techniques, this dissertation puts forwards a new automatic mesh generation approach, which is an efficient, accurate and simple algorithm for generation of quadrilateral or hexahedral finite element meshes.

本文深入研究了各种有限元网格自动剖分算法，并对各种算法的优缺点进行了分析总结，依据波前法算法的思想，结合Paving算法、Plastering算法和其他网格生成技术，提出了较方便快捷的有限元网格自动剖分算法。

Methods A wet hip joint's sample from corpse was scaned by CT and all images of every cross-section hip joint's layer was obtained, and an hip joint's model was contructed with Unigraphics NX 2.0 and Solid Works 2006 SP 0.0 software. The models were assembled when simulated total hip arthroplasty after total hip joint prosthetic and ischiofemoral ligament model had been constructured. Analysis was done on von Mises stress distribution and amount of total hip component when simulated seated leg-crossing manuver. The bone and metal components were meshed as rigid bodies, composed of three-dimensional, all-quadrilateral rigid body elements, and hip joint capsule ligament was fully three-dimensional, hexahedral continuum elements representations. Results The current form of this ischiofemoral ligament's reconstruction finite element model provided for multi-body contact, large displacement interfacial sliding, large deformation capsule ligament representation, and clearly reflected the real ischiofemoral ligansent's anatomy and biomechanical behavior. The maximum on Mises stresses at the joint interface was more than that fur an otherwise identical hardware-only construct.

选择成人尸体髋关节行CT成像得到髋关节每层横截面图像，提取边界坐标，利用有限元分析软件Unigraphics NX 2.0和Solid-Works 2006 SP0.0构建出髋关节三维有限元模型及人工髋关节假体，并模拟全髋置换术进行装配，将坐股韧带按其术中重建位置进行构建骨骼与金属模型采用三维十节点四面体实体单元进行网格划分，关节囊六面体连接单元划分，模拟坐位腿交叉动作载荷获取假体撞击过程的角活动度和相应的von Mises应力分布情况结果所构建的多体连接、大界面划移、大变形的坐股韧带重建有限元模型，客观反映坐股韧带真实解剖形态及生物力学行为，增加坐股韧带重建的模型其关节面的最大主应力值大于仅有金属的模型。

Cage hexahedral silsesquioxane (T 8), an octamer, each of its sides consists of silicon and oxygen ring. From which, many kinds of macromer and related inorganic/organic nanocomposites containing inorganic silicon dioxide core have been prepared.

笼型六面体倍半硅氧烷(T8)是一类每个面都由硅氧八元环构成的六面体，从它出发可制得以二氧化硅为核心的大分子单体以及无机/有机纳米复合材料。

Through the establishment of the eight-node hexahedral elements describing continuous variation of the thickness of adjacent elements, the involved nonlinear anisotropic elasto-plastic material model, the control strategies of the dynamic load of trajectories and so on, the FEM model of SPIF was reasonable planed.

通过建立能够描述邻接单元厚度连续变化的八节点六面体实体单元、涉及材料各向异性的非线性弹塑性材料模型、和工具头运动轨迹动态加载的控制策略等数值模拟中的关键性问题，对适用于金属板材单点渐进成形数值模拟分析的有限元模型的建立进行合理规划。

Using the most advanced production processes and machinery and equipment, ownedúרThe largest (1.5 m * 4 m) variability strong mechanical automatic hexahedral cutting units, large (2.85 meters * 26.5 meters) Autoclaves Kettle conservation line, annual production capacity of nearly 250,000 cubic meters.

采用目前最先进的生产工艺和机械设备，拥有国内首台最大的(1.5米*4米)可变性强的全自动机械六面切割机组，超大(2.85米*26.5米)蒸压釜养护线，年产能力近25万立方米。

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％。