接触

Since two curves have the same coordinates and unit normal vector at the contacting point, the problem of the mesh of two planar curves is transformed into an ordinary differential equation by vector analysis. We have the solution to the equation by numerical method and computer calculation. After repeating the way of computing the solution to the equation, we have the contacting points.

因两曲线於接触点的位置相同，单位法线向量相等，由向量分析使曲线接触问题转变为常微分方程式，藉助数值计算与电脑运算得到方程式解，重覆计算方程式的解即可得每一接触点的位置。

The four single errors exist in joint B in crank.rocker mechanism. The result indicates that the theory analysis is correct. In order to analyze the distribution of contact stress in joints, the ANSYS finite element tool is used. The situation of four single errors in joint B is analyzed. The distribution of contact stress is actually reflected. The microcosmic stress analysis is referred.

为了分析铰链在存在形位误差的情形下铰链中接触应力的分布情况，利用ANSYS有限元分析工具，通过对B铰链存在的四种可能出现的形位误差造成在装配过程中产生的接触应力的分析，真实的反映了铰链接触应力的分布情况，从而由宏观的力分析进入微观的应力分析，这也是前人没有涉及过的。

An originative, technological approach that a doped poly-silicon layer is grown on extrinsic base before MBE SiGe base epitaxy is proposed, which minimizes the contact resistance of base and eliminates the native oxide at both internal and extrinsic base pads.

对SiGe HBT器件的性能进行了仔细研究，提出了在进行SiGe基区外延之前淀积掺杂多晶硅的新器件结构，该结构消除了外基区掺杂Poly—Si和基区SiGe接触之间的自然氧化层对基区接触电阻的影响，减少了基区接触电阻。

The formula was established about calculating design parameters and technological parameters of ideal strip and bent strip in the period of forming. The thesis presented how to calculate the deformed area length and contact are radius of contact deforming between two elastic bodies on condition of the friction. The calculating formula of pinch force about plate-strip pinch mill was given and the results were analyzed that friction coefficient and radius of pinch rolls are very important for determining pinch force. Moreover, the rule of deforming and stress distribution of different 〓 ratio were gained on condition that the deforming was considered to be non-uniform distribution in the gap. The differential equations were got that calculate the displacements of large deflection of elastic cantilever rectangle plate with fixed end and the formula of the Finite Strip Method was conducted to study the regularity of mid-plane displacements, deformation and stresses for elastic-plastic large deflection bend of cantilever parallelogram plate with fixed or slidable end by integrating Prandtl-Reuss equation.

建立了一套完整的设计参数计算公式和在成型过程中理想带钢或具有月牙弯带钢的工艺参数的调整公式；在考虑摩擦力的条件下，对两弹性体接触变形过程中的接触变形区长度和接触弧半径用位移解法进行了研究，推导了板带递送机的递送力计算公式，从而得知在递送机设计过程中，应选择适当摩擦系数和辊身直径；另外，还从辊缝内带钢实际变形出发，分析了对于不同的〓值，带钢的变形规律及应力分布状况；建立了固定端悬臂矩形板弹性大挠度弯曲变形的控制方程，并且在对Prandtl-Reuss方程的积分处理的基础上，导出了固定端和滑动端悬臂平行四边形薄板的弹塑性大挠度的中面伸展位移、变形和应力的有限条元法公式，编写了Fortran语言计算程序，在各种参数条件下，对螺旋焊管成型过程变形规律进行了全面的分析研究，从而为螺旋焊管的生产和进一步的改进提供了理论依据。

Based on researching contact Finite Element Analysis theory, a contact analysis prick valve pressurize through ANSYS is achieved.

介绍了液压领域里常用锥阀密封结构的接触密封机理，通过研究接触问题的非线性有限元理论，运用大型有限元软件ANSYS对锥阀密封结构进行了静态接触分析。

Based on the equations, the contact spots on the face gear are simulated and analyses are conducted on the rule of the principal curvature of the contact points on the pinion and the face gear as well as the rule of the maximum press stress of the contact areas on the face gear.

根据布希涅斯克问题的求解方法，给出了传动中面齿轮上接触区域的椭圆长、短半径、中心最大变形量、最大压应力以及载荷分布的方程，分析了接触中心最大压应力的变化规律，实现了接触斑点的可视化仿真。

The analysis of the contact problem in FEM includes two aspects: the checking of contact points and the treatment of contact points with mechanics and kinematics.

有限元分析中的接触问题包括两方面：接触点的检测和已接触点的力学与运动学处理。

For dovetail joint,the problem of elastic contact is solved using the finite element method.

针对燕尾榫连接结构，采用有限元技术求解接触问题，获得结构接触应力及接触状态量的分布，并预测裂纹萌生的位置。

Contacting these breeders is best done a private, personal basis, by telephone, e-mail, or mail. the samoyed club of america, inc. would like to advise you to check out the persons you contact carefully to be certain that their standards of quality and ethics meet your expectations. the samoyed club of america, inc. in no circumstances guarantees the services of any of the members.

接触这些breeder，最好是秘密的私下接触，通过电话，电邮或书信。sca劝告你注意检查你所接触的人是否可靠，他们的品质，道理标准是否与你预期的一致。sca不提供任何成员的情况保证服务。

When the contact area decrease from 1/2 of the slot width (at this situation the scaleboard is almost contacting with the scaleboard slot completely) to 1/8 of the slot width (atthis situation there is only very narrow contact area between the scaleboard and the slot) the maximal equivalent stress increases 52.2%.

当接触带由衬板槽宽度的1/2(此时衬板与衬板槽几乎完全接触)减小到1/8(此时衬板与衬板槽只有很窄的接触带)时，该处的最大等效应力增大了52.2%。

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。