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切向力

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By analyzing experimental data, some conclusions were made that adding normal loads on silt is not an applied method to raising interface shear resistance, Adding some large grains of debris in slit can strengthen the passive resistance force of the transverse ribs of geogrids, yet reduce the integrated pullout resistance force of geogrids when subjected to low normal loads, the ultimate pullout force can be greatly enhanced by adding normal stress to restrain soil dilatability .

对试验结果比较分析后发现:单纯提高法向荷载来增加格栅表面的摩擦剪切阻力的方法并不适用;在粉土中加入大粒径碎石,可以提高格栅横肋的被动阻力,但在竖向荷载较小的情况下,反而降低了格栅的整体拉拔阻力;施加适当的法向荷载,抑制土体的剪胀效应,格栅整体拉拔力得到了显著增强。

At the same time we provided the double trigonometric progressional solution at the common boundary condition. And combining with the taken test of such plate abroad this analysis method was proved to be accurate and credible.In the third chapter, reasonable finite element models for such structure were established and a static non-linear analysis was made, and we summarized the rule of this structure about the aspects of force, deformation and destruction.

第三章对薄壁箱体现浇混凝土空腹板楼盖结构建立了合理的有限元分析模型,进行了静力全过程分析,侧重分析其在竖向荷载作用下的受力性能,总结出此结构体系的内力、变形分布及破坏过程的规律,并结合国外试验和国内现行混凝土结构设计规范,对这种结构的冲切计算进行了简单的探讨,提出了冲切计算的修正公式。

Finish to design the micro CNC, I have to investigate the adaptable parameters for cutting. This paper had calculated tool's radius, spindle's rotational speed, radial depth, and feed speed by the instantaneous cutting areas of the cutting forces model. To find out the instantaneous cutting areas by mathematica which can calculate the tangential, radial and axial component of cutting forces during cutting.

设计完微型工具机后,接著探讨最佳的切削参数,本论文采用瞬时投影面积的数学模型,且推导出利用刀具半径、主轴转速、径向切深、进给速度等参数来做为瞬时切削投影面积的函数,并使用软体mathematica算出瞬间面积大小,预测出切削过程里所产生的切线切削力、径向切削力和轴向切削力。

The evolution process under the control of the multigeodynamic force system (including the boundary forces of Eurasia-Pacific-Indian three massive plates around Nansha block, effects of the deep mantle, relative soft layer-sliding planes within Nansha lithosphere block and the earth's rotational inertial force) can be briefly divided four stages: the late Cretaceous to the early Eocene stage of uprilfing-erosion and shear-extension caused by the oceanwards-eastwards withdrew of Pacific subduction zone and the delamination of proto-subducted slab after the stage of pre-Cretaceous pre-rifting active continentoceanic plate margin. In this stage, the Nansha transcrustal layering-block started to move southeastwards on the Nansha transcrustal layer-sliding plane, meanwhile, the Andu-Bisheng and Liyue-Banyue basement layering-block slid on their upper-crust layer-sliding planes, and Xibu accretion zone was formed. Successively, it entered the stage of the mid-Eocene to early Oligocene, when NW-SE sea-floor spreading occurred in the southwest subbasin owing to the slip-line field initiated by the collision between the Indian and Eurasian plates, Zengmu foreland-basin started to develop in the same time. And in the stage of late Oligocene to early Miocene, near NS simple-shear extension and sea-floor spreading in the central subbasin of eastern South China Sea resulted from the south-southeastwards drawing-force of the mantle-flow. The crustal layering-blocks and the Miri accretion zone formed also in this stage.

南沙岩石圈新生代微板块及板内层块构造的动力演化过程,在多元动力等因素(如块体之外的欧-太-印三大板块运动边界力和地幔深部活动因素、块体内部软弱层滑面以及地球自转变化)控制下,大致经历了4个阶段的演化:从前晚白垩世的裂前活动陆-洋板块边缘阶段因太平洋俯冲带向东跃迁、原向NNW俯冲消亡的板片的拆沉、幔隆而进入晚白垩世-早始新世的隆升剥蚀、剪切伸展演化阶段,南沙超壳层块顺超壳层滑面祥东南运移、安渡-毕生与礼乐-半月基底层块沿上壳层滑面拆离,西布增生带形成;继而先后在中始新世-早渐新世期间受印-欧板块碰撞滑线场、地球自转加速影响出现西南海盆NW-SE向海底扩张和曾母前陆盆地的发育,和晚渐新世-早中新世期间南—东南向地幔流牵引造成的中央次海盆近NS向单剪伸展与海底扩张、壳体层块向南差异滑移、米里增生带形成;中中新世以来,印度-澳洲板块快速向北俯冲,构成今日南海格局。

By trussing the exterior columns and forming them into a tube,they are very efficient in resisting lateral forces because they utilize overall dimensions for overturn resistance and efficient truss members in direct stressfor shear resistance.

By桁架柱和外部形成一管他们,他们是非常有效的抗侧向力,因为他们利用推翻性和效率的直接压力(桁架成员,而不是在弯曲的整体尺寸)剪切resistance。

Then the weak formulation of the control equations considering the contact constraint conditions has been developed. Combined the Lagrange multiplier and penalty function methods, the augmented Lagrangian method is used to treat the contact constraint and solved the non-linear and non-smooth problems of the mechanical response perfectly. A finite element model has been applied for the test project of the reinforced slope and to study the mechanism of the interaction of the soil and reinforced material.

本文在Lagrangian网格的控制方程中引入接触界面条件,并采用了经典的Coulomb摩擦模型作为界面切向面力的本构模型,继而发展了考虑接触约束条件的控制方程的弱形式;在求解方法上,综合了Lagrange乘子法与罚方法的优点,采用增广的Lagrangian方法处理接触界面约束,很好地解决了接触问题中的高度非线性和响应不平滑性。

Motibity changed by gear-box in direction and rotate speed is transferred to the blade axis on the right side to drive the blade axis. blade axis'parameter, blade assembling frame and blade assembling means are ascertained. The load and movement of the blade axis are analyzed. And the best blade rotate speed is ascertained. According to the request of no-tillage soil, the appropriate furrow openers are chosen. They are staggered and assembled in two rows .According to the sliding cutting request, the crucial parts of the anti-blocking——the sliding cutting blade, its edge curve is analyzed and designed in principle. The academic curve function is gotten. Combined with working practice and technics request, the blade's figuration parameter is designed, 65Mn is chosen as the material for blades. The working load is analyzed. And the intension of the sliding cutting is analyzed and checked with ANSYS software. At last, the spring rack of the suppress wheal is analyzed in principle. The theory and parameter of designing the spring rack of the suppress wheal. Experiment indicated that the anti-blocking capability of this anti-blocking equipment was excellent.

设计出适合此防堵装置的动力传输方案,动力经变速箱变向变速后从右侧传给刀轴,驱使刀片切割秸秆;确定出了刀轴的参数、刀片的安装结构和安装方法,对刀轴的受力和运动进行了分析,确定出了刀轴最佳转速;根据免耕地的要求,选择恰当的开沟器,并采用双排错位安装的办法,避免了"瓶颈"现象的发生;根据滑切的要求对此防堵装置的关键部件——滑切刀片的刃口曲线进行了理论分析和设计,得到了刀刃的理论曲线方程;结合生产实践及工艺要求,设计出刀片的外形参数,选择65Mn作为刀片的材料;分析和计算了刀片在工作中承受的载荷,运用ANSYS 软件对滑切刀片的强度进行了分析校核;最后对镇压轮的弹簧支架结构进行了理论分析,提出了设计镇压轮弹簧支架的理论和参数依据。

According to the stress characteristics of coal floor with faults, corresponding simplified mechanical model is built to obtain the equations of shear stress and normal stress on the fault, as well as the influential rules of fault dip on shear stress, normal stress and fault activation.

针对含断层缺陷底板的受力特征,建立相应的简化力学模型,分析得到断层面上的剪切应力和法向应力表达式,并研究断层倾角对断层面上剪切应力、法向应力及断层活化的影响规律。

The stable lobe graph for high speed milling of 2A12 aluminum alloy thin-walled workpieces was obtained by utilizing modal parameters and force coefficients,which were acquired respectively by milling tests and modal analysis tests on Mikron high speed...

针对2A12铝合金薄壁结构零件,利用M ikron高速加工中心和相关仪器,通过铣削力实验和模态实验,分别测得特定刀具和工件系统的动态铣削力系数和模态参数,从而绘制出高速铣削薄壁零件的稳定性叶瓣图,得到了不同径向切深条件下的极限轴向切深,并通过试验进行了验证。

The vibratory equation and vibratory characteristics of tie and ballast are given. The results indicate that the effects of transverse shear deformation and axial force on vib...

计算结果指出,钢轨的横向剪切变形及其承受的轴向力对钢轨的振动水平、轮轨间的动作用力均有影响,特别是在高频域,有着不可忽略的影响。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。