加工面

Finally, the four-unit cylindrically conformal microstrip antenna array is processed and tested. Testing results indicate that, the input VSWR of the antenna array in the vicinity of 1.575GHz is less than 2, the omni-directional performance good, 3dB bandwidth is about 90 degree on axial plane, right-hand circularly polarization good. Overall performance of the antenna array satisfies the design requirements.

对仿真获得的四单元柱面共形微带天线阵列进行了加工测试，测试结果表明该天线阵列在1.575GHz附近工作频带内输入驻波小于2，柱面法向平面全向性良好，轴向平面3dB波瓣宽度约为90。，右旋圆极化效果良好，天线整体性能达到工程设计要求。

Numerical simulation of drawing process of the part has been done by using the FEM. Ultimately the reasonable die surface fo the process has been gaied which is applied in manufacture of the die through the adjustment and amendment of the drawing surfact based the simulation result, hence a guidance to the design of th elative parts.

并运用有限元技术对其成形过程进行数值模拟，根据模拟结果对拉延型面进行调整、修改，最终得到合理的模具型面用于模具的加工制造，并对同类零件的设计起到一定的指导作用。

While the worm surface is generated by contact lines of the generant traditionlly.

计算结果表明，在双自由度运动下，母面无论是直线，平面还是圆弧面曲面，，包络加工蜗杆的过程都是点接触形式，蜗杆表面都是由接触点生成；而在传统上，蜗杆表面都是由母面上的接触线生成。

And the highest production is in East Sea of China. It is also distributed in outsea of Zhejiang and other fishing grounds outside Zhoushan.

浙江外海、舟外渔场均有分布，肉质白细鲜嫩，富含蛋白质，可加工成鱼糜制品、烤马面鱼片和烟熏马面鱼片。

The material is 48H,50M,39UH,35EH to be produced in batch .we can produce magnet 80 tons per month at present .the products is DISC magnet of motor ,cup magnet of vacancy ,VCM magnet ,speaker magnet in mobile ,Nuclear magnetic resonance etc ,flexbile magnet have magnet piece/mount PVC/two sides glue、anisotropic plastic magnet、plastic soft magnet、magnet strip/mount tow sides glue、magnetise printed paper etc,product to be can printed or pvc on no-magnetic side directly、mount tow sides gluethis product can processed according to custom,for example

主要常见产品有扁平电机磁钢，空心杯磁钢，UCM磁钢，手机受话器磁钢，核磁共振磁钢等等各类电子产品零配件；橡塑磁有磁片/裱pvc/双面胶、异性橡塑磁、橡塑软磁片、挤出磁条/裱双面胶、磁性打印纸等，产品可直接在无磁面上印刷或在裱在无磁面上的pvc上印刷、无磁面裱双面胶（这种产品客户可自己加工，比如贴彩纸），另外一面是充磁面，它直接可粘在带铁的东西上面(比如汽车、冰箱、或展架等)，使用起来比较方便、简单。

The key making the cambered cam indexing institution is globoidal cam processing.

弧面凸轮分度机构制造的关键是弧面凸轮的加工。

There are two spots at least on refaced knife-line are superposition with precision knife-line, and the error between actual shovel-tooth surface and theoretical side blade surface is analyzed according to general grip theory.

重磨后的每刃线上至少有两点与精确刃线重合，按共扼理论分析实际齿面与理论侧刃面之误差，并通过参数优化使误差最小化，实现滚刀的铲磨加工。

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。

The static and dynamic characteristics of the beam of a gantry-type machining center are analyzed by means of ADAMS and ANSYS. Considering effect of gravity and cutting forces, the static deformation of the beam is obtained after calculating the interacting forces between the guide and the slide block by ADAMS. Moreover, the contact parameters of the guide surface are acquired by dynamic tests and parameter identification, then they are applied to the simulation model of the beam-slide box system, whose natural frequencies and modal shapes are achieved by modal analysis. Furthermore, the effect of changes of the contact parameters on the dynamic behavior of the beam-slide box system is also investigated.

对一种国产龙门式加工中心的横梁关键部件，采用机械系统多刚体动力学仿真软件ADAMS和有限元分析软件ANSYS进行了静动态特性分析；在考虑重力和切削力作用下，由ADAMS计算出导轨与滑块间的作用力，从而计算出横梁部件的静态变形；通过动态测试和参数辨识方法获得导轨结合面特性参数并将其应用到横梁滑箱系统整体有限元模型中，经过模态分析得到系统固有频率和各阶振型图，并进一步分析了结合面参数变化对横梁滑箱系统整体动态特性的影响。

Use of alloy chilled cast iron roller, a hard wear-resistant surface, cavity processing, so that the roll surface temperature uniformity.

辊筒采用合金冷硬铸铁，个面坚硬耐磨，内腔加工，使辊面温度均匀。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。