铰

The deformation and failure mechanism of voussoir beam were analyzed with physical modeling.

用模型试验方法研究不同初始纵向载荷、跨厚比条件下铰接拱变形和破坏全过程，得到铰接拱全程纵向载荷、横向载荷、力臂系数与挠度关系曲线。

Giving first place to the Inarticulata as the genus and species of the Articulata fossil are monotonous , the fossils include Obolidae Lingulella、Lingulepis, Acrotretidae Acrothele、Orthacrothele, Kutorginidae Kutorgina,Daterinidae Paterina and Iphidella, Micromitridae Micromitra, and Nisusidae Nisusia of the Articulata fossil.

以无铰纲为主，有绞钢化石属种单调，包括圆货贝科的Lingulella、Lingulepis，乳孔贝科的Acrothele、Orthacrothele，顾脱科的Kutorgina；神父贝科Paterina及Iphidella；小帽贝科的Micromitra，及具铰纲艾苏贝科的Nisusia。

It is found that the design of reinforce-beam section dog-bone connection can transfer the yielding joint from flange welds to parent metal zone, which possesses better plasticity and avoid yielding joints in weak welds. This design also enables beam flanges to dissipate earthquake energy more effectuality and protects weak welds.

在弹性、弹塑性有限元分析的基础上，对狗骨式节点和翼缘增强狗骨式节点进行了承载能力对比分析，结果表明：翼缘增强狗骨式节点设计可以将梁柱翼缘焊缝的塑性铰有效的转移到塑性好的母材区域，避免了在薄弱的焊根部位形成塑性铰，保护了韧性较差的焊缝。

Measures could be adopted in the design are introduced in this article by calculating and analyzing the ellipse flat arch bridge from two engineering examples and comparing the differences between two hinged arch and hingeless arch in different rise-span ratio.

结合工程实例，对椭圆轴线坦拱进行计算分析，比较了不同矢跨比情况下两铰拱、无铰拱的区别，介绍了在设计中采取的措施。

In the method ,the blades are treated as rigid ones with offset and spring restrained hinges and with structural coupling between flap and lead lag motion for the purpose of being applicable to hingeless or starflex rotors .

采用带外伸量及弹性约束的当量铰桨叶模型，考虑了旋翼挥／摆结构耦合及动力入流非定常气动力，建立了悬停状态旋翼／机体耦合动稳定性分析方法，适用于星形柔性及无铰式等旋翼系统。

Because the ideal "rigid joint" and "hinged joint" are inexistent, the stiffness of any connection types is between ideal rigid joint and hinged joint.

因为理想的刚节点和铰接点是不存在的，任何连接形式的刚度都是介于理想刚接和完全铰接之间的。

The display unit is mounted via a hinge unit to a rear side surface of the main body and is slidably detachable wherefrom via a recess for receiving a portion of the hinge unit.

显示器通过一个铰单元安装在主机的后侧表面上，并可以通过一个用于接纳铰单元一部分的凹槽可滑动地主机上脱离。

After analysizing the results of SSRFEM and centrifugal model test, someconclusions are drawn that, the depth of slip surface implies that the Bishopssimplied method cannot indicate the true failure mechanism for the slopes reinforcedwith piles. The rate of safety factors decreases with the pile spacing decreasing, andthe salty factor of the slopes is the largest when the reinforced piles are installed in themiddle of the slopes, regardless of pile head confining conditions, and the deflection,maximum bending moment and shear force in the reinforced piles in the criticalcollapse are the biggest meantime. The fixed and hinged head condition of the pilesresults in smaller bending moment in the piles than that in unrotated and free headcondition, therefore the restrained pile head condition is recommended in the design.

3不同特性与工况下抗滑桩与土体相互作用的数值分析与离心模型试验研究表明：采用简化Bishop法计算得到的滑动面不能反映抗滑桩加固边坡的破坏机理，抗滑桩设置在边坡中部和减小桩间距有利于提高边坡稳定安全系数，而此时抗滑桩在边坡临界破坏时的挠度、最大弯矩和最大剪力相对较大；桩头固定、铰接与桩头自由、平移相比，所加固边坡的整体水平位移及边坡临界破坏时抗滑桩的最大弯矩相对较小，而稳定安全系数则较大，因此在进行抗滑桩设计时应尽量选择桩头固定与铰接的型式，或对桩头进行锚固以改善抗滑桩的受力特性，提高边坡的稳定安全性状。

Based on experimental results of unstiffened overlapped circular hollow section joints, the axial forces of experimental truss members connected with hinge joints, semi hinge joints or rigid joints, are calculated by the finite element analysis model.

以平面K型圆钢管搭接节点的试验数据为基础，通过对试验桁架建立铰接、半铰接和刚接杆系有限元模型，计算受外荷载作用下试验桁架各杆件的轴力。

The impoved design of the D35 trailor-form is rational, since the wagon ear is connected with the heavy load by hingel joint instead of spherical articulate, and the lateral relative displacement of safety pins is very small due to the rolling stiffness of schnabel grider, so that the friction stability of spherical-surface sockets of press-down cylinders is guaranteed.

新型D35联挂改进设计是合理的，因为车耳球铰改为车耳铰销联结后，利用钳夹梁的侧扭刚度来减小安全销相对横向位移，进而保障压柱油缸球面座的摩擦稳定性。

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％。