接触的

The results show as follows: Due to unfitting between the wheel tread and profile of Frog No. 9, two-point contact occurs between the wheelset and frog and the contact patches become narrow and long; the Von Mises stress and contact force in the area of the contact patch between the tread close to the flange and the frog are so great that they go far beyond the yielding limit and enter the plastic deformation stage; this will lead to serious wearing of wheelset treads and frogs.

结果表明，由于车轮踏面与9号辙叉的型面不配合，轮对与辙叉形成两点接触，且接触斑狭长，靠近轮缘处踏面和辙叉接触斑的应力及接触力非常大，其数值远远超过材料的屈服极限，进入塑性变形阶段，这将导致车轮踏面与辙叉的磨耗严重。

Took the different diameters double-row bearing slewing ring asexample, this dissertation studied the distribution of axial press ofthe rolling body under axial load and throw moment, the contact pressbetween two outer seat-rings which are connected to the main machinewith high strength screw bolts.

本文以双排异径球式回转支承为例，对球式回转支承在承受轴向载荷和倾翻力矩时的滚动体轴向正压力大小、分布及由高强度螺栓与主机连接的滚圈接触面的接触力进行了详细的理论推导和实际计算，说明在双排球式回转支承的结构静力分析过程中，可以将滚圈安装接触面的接触力简化为铅垂方向的均布载荷。

And the frontal technique is adapted to solve the FE equations. The techniques are studied to deal with the large slip frictional contactproblems between a deflectable body with large deformation and a rigid bodywith flat or curved surface. A new algorithm is presented to resolve such contactproblems, including incremental displacement constraints and force constraints,and the modules are programmed. The performances of tire under static load invertical loading state and camber state are analyzed by this method. And theexperiments were carried out at the same condition as used in analysis process.

研究了大变形柔性体与具有平面及曲面外形刚性体之间的大滑动摩擦接触问题，提出了求解这类接触问题的位移增量约束和主动力增量约束处理方法；编制了大变形柔性体与具有平面及曲面外形刚性体之间的大滑动摩擦接触问题求解模块；利用本文提出的大滑移接触问题处理方法，分析了轮胎在径向静载和静态外倾加载条件下受力和变形，并对部分分析结果进行了试验验证，验证结果表明，本文提出的位移增量约束和主动力增量约束处理接触问题的方法是正确可靠的，而且具有精度高、收敛性好、收敛速度快的优点。

Bisecting the"eclipse begins and ends at sunrise and sunset" loops is the curve of maximum eclipse at sunrise and sunset.

表面接触点P1和P4所处的坐标位置为第一次接触半影区和最后一次接触。

In this dissertation, first, based on theory of cutting tooth about the gleason spiral bevel gear, the equation of meshing in the process of cutting tooth, the surface equation of generating gear as well as the general tooth surface equation of the double circular arc spiral bevel gear, using GB12759-1991 type of double circular arc gear as a basic gear profile, a three-dimension solid model of double circular arc spiral bevel gear which has the good adaptability was carried out by used of Unigraphics software;Second, by researching of the algorithm about contact and collision as well as various contact types based upon Contacting Finite Element Method, a foundation was laid for selecting the contact type in analyzing contact stress of double circular arc spiral bevel gearing;Finally, through the connection port of PARASOLID between UG software and ANSYS/LS-DYNA software, the three-dimension solid model of double circular arc spiral bevel gearing obtained above in UG was imported into ANSYS/LS-DYNA, a finite element analyzing about contact stress of double circular arc spiral bevel gearing was carried out by applying new loading method.

本文首先基于格利森弧齿锥齿轮加工原理及切齿啮合过程中的啮合方程、产形轮齿面方程以及双圆弧弧齿锥齿轮的齿面方程，选用GB12759-1991型双圆弧齿轮基本齿廓为基准齿形，利用Unigraphics软件的建模功能，绘制了有较好适应性的双圆弧弧齿锥齿轮传动三维实体模型。其次，描述了应用有限单元法进行实体接触与碰撞问题算法的公式，研究了有限元分析中的各种接触类型以及双圆弧弧齿锥齿轮接触应力分析中所选择接触类型的依据。最后，通过UG软件和ANSYS/LS-DYNA之间的PARASOLID接口工具包，将UG软件中得到的啮合齿轮模型导入ANSYS/LS-DYNA有限元分析软件，给出一种新的加载方法，进行了双圆弧弧齿锥齿轮传动的接触应力的有限元分析。

Main products: 1: Japan OMRON (between relays, time relays, temperature controller, photoelectric switch, proximity switches, trip switches, programmable logic controller) 2: Korea LG motor (air switch, contactors, thermal relays, magnetic starter, programmable logic controller) 3: Japan's Fuji motor (air switch, contactor, thermal relay, temperature controller, time relay, inverter, programmable controller, button, indicator light) 4: Japan's Mitsubishi Electric (air switch, contactors, thermal relays, Inverter, programmable controllers, servo series) 5: Korea AUTONICS (Photoelectric switch, close to-day clearance, temperature controller) 6: Taiwan CKC (time relay, the water level controller, solid state relays, counters) I Division otherwise operating Siemens, Schneider, and Stephen, RKC, days too, Hanyoung brands, such as industrial automation components, category range.

1：日本OMRON（中间继电器，时间继电器，温控器，光电开关，接近开关，行程开关，可编程控制器）2：韩国LG电机(空气开关，接触器，热继电器，磁力起动器，可编程控制器)3：日本富士电机（空气开关，接触器，热继电器，温控器，时间继电器，变频器，可编程控制器，按钮，指示灯）4：日本三菱电机（空气开关，接触器，热继电器，变频器，可编程控制器，伺服系列）5：韩国AUTONICS（光电开关，接近天关，温控器）6：台湾CKC（时间继电器，水位控制器，固态继电器，计数器）我司另有经营西门子、施耐德、和泉、RKC、天得、韩荣等品牌的自动化工控元件，品类繁多。

Contact-state recognition takes a great role in robotic assembly manipulation. After modeling the force-sensing uncertainties and approximating the Coulomb friction cone with polyhedral cone, a linear programming procedure is formulated to test the feasibility of an assumed contact state.

对装配操作中接触状态的转移过程及其实现进行了分析，建立了接触约束网络图的构造过程，提出了操作中接触状态路径的规划算法以及接触状态改变与转移的机器人有关运动参数的求解方法及其优化指标。

The contacting simulative analytical model of a pair of herringbone gear used in warship was established,and let the result of calculation be compared with Hertz theory,therefore explained the accuracy,effectiveness and reliability of the contacting element on gear contact stress analysis.

建立了一对舰用人字齿轮接触仿真分析模型，并将计算结果与赫兹理论比较，说明了接触单元在齿轮接触应力分析上的精确性、有效性和可靠性。

Through simulates between the mold and the sheet dynamic contact accurately, contacts the boundary dynamic change in the comprehensive analysis sheet and the mold in the foundation, unified the ANSYS software to give the model geometry description, the contact algorithm choice, the contact friction model establishment and so on the concrete method.

通过准确地模拟出模具与板料之间的动态接触，在全面分析板料与模具接触边界动态变化的基础上，结合ANSYS软件给出了模型的几何描述、接触算法选择、接触摩擦模型的建立等具体方法。

The paper adopted the contract model according with the fact, studied the effect of contract condition on reflection cracking, analyzed the main factor of reflection cracking caused by temperature changes.

本文采用了更符合实际情况的接触模型，利用ANSYS 中热分析和接触分析的耦合技术，详细研究了在温度荷载作用下的接触条件对反射裂缝的影响，分析发现了接触条件是产生温度型反射裂缝的主导因素。

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％。