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With an example, the paper uses finite element program ANSYS to establish three calculating model of the steel-concrete composite open-web floor: the combination finite element method of spatial beam elements and shell elements, the finite element method of shell elements and the combination finite element method of shell elements and entity element.

结合一算例,利用ANSYS有限元软件,建立了组合空腹楼盖的三种计算模型:空间梁单元与壳单元的混合元模型、空间壳单元模型、壳单元和块体单元模型三种理论计算方法,对这三种计算模型作分析对比,得到了静荷载作用下该类结构的内力分布规律及其他一些有价值的结论。

In Chapter two, it is given of the three-dimensional boundary element and the boundary element space, Sobolev space for the contact boundary element problem with friction; it is proved of existence and uniqueness of the solution by variation inequality for the contact Boundary Element Method matrix equation under two kinds of condition that the contact zone is fixed and the contact zone is increasing along with the load; it is given of the expressionfor the error of the exact solution and the boundary element solution.

第2章,给出三维边界单元及边界元空间、有摩擦接触边界元问题的Sobolev空间,利用变分不等式证明了不变接触区和随载荷可变接触区两种情况下的接触边界元法矩阵方程解的存在唯一性,给出了准确解与边界元解的误差表达式,还证明了三维弹塑性摩擦接触问题凝缩矩阵解的存在唯一性,为三维弹塑性摩擦接触边界元法奠定数学基础。

Using linear elastic finite element model for piles and pile cap, elastic-plastic finite element model for piles-surrounding soil under pile cap, linear elastic infinite element model for soil around pile group, and mounting interface element on the pile-soil interfaces, 3-D elastic-plastic finite element method is used to analyzing the pile-soil-cap interaction.

对桩及承台采用线弹性有限元模型,对承台下桩周土采用弹塑性有限元模型,对群桩以外的土体采用线弹性无限元模型,在桩土接触面上设置接触面单元,利用三维弹塑性有限元对桩%D土%D承台相互作用进行了分析。

Finite element model of light-weight steel-concrete composite beams are built up. This element model combines spring element with traditional beam element to form a composite beam element which consists of steel, concrete and springs. The three parts has compatibility of deformation.

2建立了轻钢-混凝土组合梁的非线性有限元分析模型,该模型由传统的梁单元中加入弹簧单元,由钢梁部分、混凝土部分和弹簧三部分在变形协调的基础上组成一个复合梁单元。

In this paper, the space-time finite element theory and its application technologies are studied and discussed. Furthermore the space-time finite element method is used to analyze the transient characteristics of electromagnetism equipments. The work is important to develop the numerical method for the transient electromagnetic field. The detailed work is as follow.In the basis theory of finite element method used in the transient engineering problem, the functional theory and the finite element theory are applied to studied the existence condition of a generalized variation principle, which is the basis of the space-time finite element method.

本文在完善时空有限元法的基础理论和应用技术并将该方法应用于解决电磁装置的瞬态过程分析等相关方面进行了深入的研究与探讨,该工作对于发展瞬变电磁场问题的数值计算方法具有重要的意义,为此进行了如下几方面的工作:在工程瞬变问题的有限元方法的基础理论方面,本文应用泛函理论和有限元理论,系统讨论了一般工程瞬变问题的变分定理的存在条件及对应的变分定理。

A method for producing fatty acid alkyl esters and/or glycerin comprising a step of bringing a fat or oil into contact with an alcohol in the presence of a catalyst, wherein the catalyst is at least one catalyst selected from the group consisting of the following to: a metal oxide having an ilmenite structure and/or a slyrankite structure; an oxide containing a metallic element belonging to the Group 12 and a metallic element belonging to the Group 4; a mixed oxide containing a metallic element belonging to the Group 12 and a tetravalent transition metallic element; a metal oxide containing zirconium and at least one metallic element selected from the group consisting of metallic elements belonging to the Groups 4, 5 and 8; and a metal oxide containing anatase type titanium oxide and/or rutile type titanium oxide, and the metal oxide containing a sulfur component of 700 ppm or less.

脂肪酸烷基酯和/或甘油的制造方法包括在催化剂的存在下使脂肪或油与醇接触的步骤,其中,所述催化剂是选自由下列~所组成的组中的至少一种催化剂:具有钛铁矿结构和/或斯里兰卡石结构的金属氧化物;含有属于第12族的金属元素和属于第4族的金属元素的氧化物;含有属于第12族的金属元素和四价过渡金属元素的混合氧化物;含有锆和选自由属于第4、5和8族的金属元素所组成的组中的至少一种金属元素的金属氧化物;和含有锐钛矿型氧化钛和/或金红石型氧化钛的金属氧化物,并且所述金属氧化物含有的硫成分为700ppm以下。

A finite element modeling and analysis of the assembly of a breech mechanism in locking condition was carried out with special finite element techniques such as contact element, gap element and spring element.

利用接触元、间隙元和弹簧元特殊单元,对某大口径火炮的炮尾-闩体-曲臂机构进行了闭锁状态下装配体有限元建模和分析。

And the development and formation of the sieve tube elements of the different cultivars were influenced by the different levels of B: the sieve tube elements of the two cultivars were not formed at the level of 0.001mg/L; At the level of 0.01mg/L, the sieve tube elements of the high efficiency (Qingyou 10) cultivar could be formed, but the structure of the sieve tube elements was not complete, and the abruption and differenciation of the sieve tube elements of the low efficiency cultivar were inhibited, they were not formed; At the level of 0.01mg/L, the sieve tube elements of the two cultivars were formed.

不同硼水平下,不同硼效率甘蓝型油菜品种根尖筛管分子的发育与形成受到影响:硼浓度为0.001mg/L时,两个油菜品种都不能形成筛管分子;硼浓度为0.01mg/L时,硼高效品种青油10号筛管分子可以形成,但结构受到破坏,而硼低效品种Bakow筛管分子的分裂与分化受阻,几乎不可能形成成熟的筛管分子;硼浓度为0.5 mg/L时,两个油菜品种都能正常生长发育。

The ore-bearing fluid of the Dabaoshan deposit is related to magmatic thermal dynamic process, and volcanogene hydrothermal sedimentary polymetallic deposit on seabed was formed. The Fankou Ore-bearing fluid is related to circulation hydrothermal in deep formation, and middle-lower temperature Pb-Zn-Ag-Hg polymetallic sedimentary deposit by sea-floor thermal spring and overflowing was formed. The Hongyan ore-bearing fluid is related to the compaction water that formed by the basin's lithogeny process, and low temperature and pyrite only was formed.

大宝山型流体与岩浆热动力作用有关,形成海底火山热液沉积多金属矿床;凡口型流体与深部建造的循环热液有关,形成中低温海底热泉喷溢沉积铅锌银汞矿床;红岩型流体与盆地成岩压实水有关,形成低温单一黄铁矿矿床。

By the OM and SEM observation of solidification microstructure, the interfacial reaction between TiAl alloy and Al2O3 crucible was serious, and a large number of α-Al2O3 inclusion formed in the solidification microstructure. The interfacial reaction between TiAl alloy and ZrO2 crucible occurred only on the sample surface, but the crucible was not stable at high temperature and a tack coating was formed, clinging tightly with TiAl alloy. C element in the graphite crucible changed the original solidification path of TiAl alloy, and club-shaped γ-TiAl phases formed.

通过用光学显微镜和扫描电镜对凝固组织观察发现,TiAl合金与氧化铝坩埚之间的界面反应较为严重,在凝固组织中形成了大量氧化铝夹杂;TiAl合金与氧化锆坩埚的界面反应仅发生在试样表面,但该坩埚在高温下不稳定,并在试棒表面形成一层无法剥离的粘结层;石墨坩埚中的C元素改变了原有TiAl合金的凝固路径,生成了棒状的γ-TiAl相。

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推荐网络例句

We stopped by the old fashion ice cream parlor Manhattan Beach Creamery for some refreshment. The "No Shoes, No Shirt, No Problem" sign on the wall epitomizes the beach lifestyle.

我们去商店区的一家老式冰淇淋店坐坐,墙上挂著「没鞋,没上衣,没问题」的牌子完全捕捉了海滩生活的随性及风格。

"If therefore", argues Bellarmine we can offer our prayers and our satisfactions in behalf of those detained in purgatory, because we are members of the great body of Christ, why may not the Vicar of Christ apply to the same souls the superabundant satisfaction of Christ and his saints--of which he is the dispenser?

" "因此,如果",认为贝拉明(德indulgentiis ,十四)"我们可以提供我们的祈祷和我们满意的代表那些被拘留在炼狱,因为我们是成员的伟大基督的奥体,为什麼可能不是牧师基督适用於同样的灵魂满意的过剩是耶稣和他的圣人-他是在配药?

Foster: Yeah, yeah, I'm glad that you called, too.

是的是的,我也很高兴你打电话来。