接触

The tooth contact and kinematic precision of cone-generated double-enveloping worm gearing with machining and assembling errors have been investigated.

对存在加工及装配误差的锥面二次包络环面蜗杆传动进行了接触分析，探讨了各种制造误差对齿面接触质量和运动精度的影响规律和影响程度，提出了矫正由加工误差引起的齿面接触偏倚，减小运动误差的装配调整作业法。

In this paper, a simulating approach of tooth contact analysis for hypoid gear drives was presented, which can analyze the whole engagement process of hypoid gear, including the contacts on working surface and tooth edge.

本文推导了准双曲面齿轮传动的轮齿接触分析方法，包括齿面接触分析和边缘接触分析，代表了齿轮啮合的完整过程。

In studies of interaction among pile, platform that above it and surrounding soil, this paper employ the concept of plate element to simulate the loading character of platform, and employ the concept of solid element to simulate the character of pile and soil, using the finite element method after understanding the geometry properties of pile, soil and the platform. Analyzing the loading properties of the three entities above and their deformation, this paper also employ a special element, Penalty Element. The introduction of penalty element of this kind has served to guarantee the join harmony of displacement between solid element and plate element, thereby effectively resolving the join problem between platforms, pile that support it and surrounding soil.Considering significant property difference between pile material and its surrounding soil, there may be much shear stress on their contact interface produced under vertical load, thus causing displacement or fission. Therefore it is necessary to adopt one special constitutive law of this kind of contact interface, which can reflect its feature of loading and deformation thoroughly. On the basis of the deformation feature and constitutive laws of some contact interface obtained by Zhang Dongji and people concerned through some single-shear experiments on contact interface between structure and soil, this paper employ one pile-soil three-dimensional constant thickness contact interface model to simulate the " slide" taken place on the interface between pile and its surrounding soil. With this kind model, this paper has also created one finite element model, which can be applied to perform finite element calculation and analyze the pile-loading feature, and deduced its element stiffness matrix.

在承台-桩-土共同作用中，考虑桩与承台的几何特性，采用有限元方法，用实体单元模拟桩土，用板单元模拟承台，更具体地分析桩和承台的受力特性和变形，而且还采用罚单元—既实体单元与板单元之间连接必须满足变形协调条件，来有效地解决了承台与桩土的连接问题，且在桩土共同作用中，由于桩体结构的材料性能与周围土层性质相差较大，在竖向荷载下有可能在其接触面上产生较大的剪应力从而导致错动或开裂，因此，为了充分反映桩土接触面上的受力及变形特征，应采用一种桩土接触面特有的本构关系，即利用张冬霁等人关于结构与土体接触面单剪试验所得到的接触面变形特征及其本构关系，引入桩-土三维等厚度接触单元来模拟桩与桩侧土之间的&滑移&，在此基础上建立可用于桩基承载性状分析的有限元计算单元模型，并推导出了各单元的刚度矩阵。

There are many women around the world, homosexuals, a variety of reasons, women tend to start with homosexual love and then to the body like the heart, many lesbians and a lot of couples like the maintenance of relations between the sexes, I grew up learning life too much contact with girls in schools clearly against girls and boys early love Suozhi Therefore, many exchanges between the boys and girls did not dare, my favorite exchanges is also a girl, to sing from the look I started listening to Alec Su Alec Su, theatrical performances, a full love of 20 years, I am sure that Alec Su do not know, there were so many side at the end of study of his homosexuality in order to get rid of trouble, I have talked to a lot of male friends, a lot of people can not left me a deep impression, Alec Su has become a standard man image,I can only tell a female friend through the text this is indeed very effective,I am a woman walking in the street sometimes Miao Miao guy is good looking girls to see their dress,Although I never like to see, but do not imitate Princess Huan Zhu Zhao Wei and Ruby Lin, Zhou Li suggested a homosexual or lesbian woman can see more of Alec Su, more contact with the opposite sex, less contact with same-sex friend, who looked handsome gas Alec Su Tzu - noble worth a visit to see handsome men can make a woman rejuvenated to enhance self-admired ability to learn a man a woman can not only prevent gay men do not cry easily find more excellent quality of a woman does not exist, ZHOU proposed autism love a friend more to look at my stories could be less lonely, drink a cup of tea taste sweet unique love story, atmosphere, compensate for the reader's love vacant position.

世界各地存在很多女性同性恋者，原因多种多样，女性同性恋者往往先从心里喜欢再到身体喜欢，众多女同性恋者和很多情侣一样维持两性关系，我从小学习生活接触女孩过多，学校里明确禁止女生和男生早恋所至所以很多女生不敢交往男生，我最喜欢交往的也是女孩子，至从我开始听苏有朋唱歌看苏有朋演戏，足足喜欢了二十多年，苏有朋本人肯定不知道，还有人这么侧底研究他为了摆脱同性恋困扰，我谈过很多男性朋友很多人都没给我留下深刻印象，苏有朋成了一个标准男人形象，我只能通过文字告诉女性朋友这的确很有效果，不蛮大家我是女人走在街上有时候也会瞄瞄长得好看的女孩看她们穿衣打扮，虽然喜欢看还珠格格但是我从来不去模仿赵薇和林心如，周莉建议有同性恋倾向的女人可以多看看苏有朋，多接触异性朋友，少接触同性朋友，苏有朋人长得帅气气姿高贵值得一看，看帅气男人可以让女人焕发青春提升自我欣赏能力，女人学习男人不但可以预防同性恋更能发现男人有泪不轻弹的优秀品质是女人没有的，周莉建议爱情孤独症的朋友多到看看我的小说可以不那么孤独，喝一杯茶水品味故事中爱情特有的香甜气息，补尝读者的爱情空缺的位置。

3 A fuseholder or circuit breaker provided as a part of an appliance shall be acceptable for the particular application and shall not be accessible from the outside of the appliance without opening a door or cover, except that the operating handle of a circuit breaker may project outside of the enclosure. A fuseholder shall be so installed that no uninsulated live parts other than the screw shell or clips of the fuseholder are exposed to contact by a person removing or replacing a fuse.

18.3保险盒或电路断路器作为电器的一个零件可被特殊电器所接受，并在电器上的门或盖未打开的情况下，除了电路断路器的操作手柄伸出了外壳，都不能接触到保险盒或电路断路器，保险盒装好，若更换或取走保险时，除了螺钉盖及保险夹可同人体接触之外，不能有其它的导电活动件裸露同人体接触。

Single factor experiments were done with the factors including the width of protrusion and the trolley's velocity, which showed that the surface frictional coefficient decreases with the width of protrusion increasing, and doesn't change with the trolley's velocity changing, which was consistent with the results of the orthogonal experiment. A theoretical model of the horizontal projection of a corrugated bionic surface's contact area was built, which showed that the contact area's horizontal projection decreases with width and interval increasing respectively and that the ratio of the contact area's horizontal projection and the vertical load decreases with the vertical load increasing. It indicated that the surface frictional coefficient decreases with the above three factors increasing respectively. Finite element modeling and analysis of interactions of a plate and soils was done using ANSYS, which showed that the plate frictional coefficient is little relative to soil elastic modulus and decreases with vertical surface pressure and that trolley's pull and vertical displacement of bionic surface's control pilot keep constant almost during the plate being pulled. Finite element modeling and analysis of interactions of a corrugated bionic surface and soils was done using ANSYS, which showed that surface frictional coefficient is little relative to soil elastic modulus and decreases with bionic surface's structural parameters and vertical pressure increasing. However, the three factors all didn't affect the surface frictional coefficient remarkably on the condition of 90% dependability. For the first time, bionic surfaces were applied to screw piles, which formed bionic screw piles, and the contrast experiments showed the bionic screw pile had certain resistance-decreasing effects.

建立了波纹型仿生曲面与土壤的接触面积的水平投影的理论模型，表明接触面积的水平投影A随着波纹型仿生曲面突起宽度、两相邻突起间距的增大而减小，接触面积的水平投影与波纹型仿生曲面表面垂直载荷之比随着波纹型仿生曲面表面垂直载荷的增大而减小，进而得出仿生曲面摩擦系数随着波纹型仿生曲面突起宽度、两相邻突起间距以及表面垂直载荷的增大而减小；利用ANSYS软件对平板与土壤的相互作用进行了有限元建模与分析，表明平板摩擦系数与土壤弹性模量关系不大，而随着表面垂直载荷的增大而减小；平板牵引过程中台车牵引力和仿生曲面控制节点垂直方向位移基本保持不变；利用ANSYS软件对波纹型仿生曲面与土壤的相互作用进行了有限元建模与分析，表明波纹型仿生曲面系数在一定范围内基本不受土壤弹性模量的影响，随着波纹型仿生曲面突起宽度、两相邻突起间距以及表面垂直载荷的增大而减小，但在可信度为90％的前提下，三个因素影响都不显著；首次将波纹型仿生曲面应用于与土壤作用方式以挤压为主的螺旋桩，形成仿生螺旋桩，并与普通螺旋桩进行了沉桩对比试验，表明波纹型仿生曲面应用于螺旋桩桩体表面具有明显的降阻作用。

We investigate the contact force distributions inside the static granular systems under the conditions of stochastic packing and confining pressure constraint. The influences of particle size distribution, packing fraction and constraint condition are also considered.

根据微观尺度下粒子的排列及接触特征，研究了静态堆积颗粒系统和围压约束下静态颗粒系统中接触力网的分布特征，同时分析了粒径分布、体积分数、边界条件等对接触力分布特征的影响。

The results show that the optimized performances of the Au/CdZnTe contacts after thermal treatment in air at a range of 353-373 K can be obtained, that is, the contacts possess lower barrier height, smaller contact resistance and better ohmic coefficient, without damaging bulk CdZnTe properties.

结果表明，在353~373 K温度范围内进行热处理可以获得更优化的电极接触性能，测试得到电极与CdZnTe接触势垒较低，接触电阻较小，欧姆系数最佳，并且不会破坏CdZnTe体材料本身的性能。

The initial contact of helical gear teeth is a point, which changes into a line as the teeth come into more engagement.

初次接触的螺旋齿轮是一个点，改变成一条线，因为牙齿接触到更多的接触。

What colours are they?Six monkeys are sitting in a tree. They have hats on their heads. Two hats are yellow. Two hats are red. One hat is blue and one hat is green. The first monkey is fat. The second monkey is thin. They have the same colour hats. The third monkey is black. His hat is not blue .The fourth monkey has a red hat. He is small.

单词的接触和学习如今已不同于以往，学生们在朗读的时候，在阅读的时候，在听力的时候已接触了无数次，或许他们早已有了药学会写的意愿，即使没有，多次的接触也会觉得无比熟悉，因此但此时综合起来学习的，有必备词汇到常用词汇再到冲刺词汇，把1——32课和33——64课所有单词个分成五组，同学们进行单词闯关，由小组长和老师共同监督和检查。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。