查询词典 conical bearing

Aiming at solving the difficulties of prototype manufacturing of conical ring for the steam generator shell of 600MW Nuclear Reactor,this paper developed a new techniques for the prototype manu-facturing of the great conical ring utilizing ring rolling technology based on RAW200/160-5 ring rolling.

1引言600MW蒸汽发生器壳体是核电站的关键设备，由封头、锥形环件和筒体组焊而成。以往制造这种锥形环件所采用的办法是，先锻制环形筒件再采用机械加工方法成形或者采用自由锻造方法直接在水压机上锻制出大型锥形环件，但这些工艺既费工时又大量浪费材料，而且产品精度不高[1]。

Analyse the technology principle of program tracking, step-in tracking, conical scan tracking and singleshot tracking, and contrast the advantage and disadvantage of them. Select program tracking and conical scan tracking considering performance and cost.

二、对程序跟踪、步进跟踪、圆锥扫描跟踪和单脉冲跟踪这四种自动跟踪技术的原理进行了具体的分析，并比较了它们各自的优缺点，从性价比的角度，选择了程序跟踪与圆锥扫描跟踪相结合的方式。

Using an improved conical bubble U tube, the optical properties of conical bubble sonoluminescence in glycol are measured.

利用一种改进后的U形管圆锥泡声致发光装置，研究了乙二醇溶液中圆锥泡声致发光的发光特性。

One of these experiments is that large turbine generator stator end of the two-tier network predigests streamline continuous conical woven conical shell-beam structure or laminated reinforced cone shell model, after experimental modal analysis to identify various parameters

一般来说，力锤的锤头中包含一个压电式力传感器，端部绕组还要安装用于采集振动响应信号的加速度传感器，对两个传感器的信号一起进行频响函数估计，并进行曲线拟合，最后得到被测物的模态参数，根据得到的

This paper establishes the contour surface equations and pressure angle formula of the conical grooved cam with translating conical roller follower.

建立了圆锥滚子直动从动件圆锥槽凸轮的廓面方程和压力角公式。

With cylindrical coordination,this paper establishes the contour surface equations and pressure angle formula of the conical grooved cam with translating conical roller follower.

借助柱面坐标，建立了圆锥滚子直动从动件圆锥槽凸轮的廓面方程和压力角公式。

However,there have been no papers which have investigated Minkowski and Minkowski slant helices and Minkowski conical geodesic curves so far as.In this paper,our major study is to give the definition of Minkowski general helix and Minkowski slant helices and Minkowski conical geodesic curves in indicators 1 in pseudo-Euclidean three-space (that is, three-dimensional Minkowski space), and study the definition of equivalence Minkowski general helix, By considering geometric invariants of these space curves, we can estimate the order of contact with those special curves for general space curves.

本篇文章主要研究在指标数为1的3维伪欧氏空间(即三维Minkowski空间)中，我们给出Minkowski一般螺线、Minkowski斜螺线和Minkowski锥面测地线的定义，研究Minkowski一般螺线的等价定义，给出Minkowski斜螺线和Minkowski锥面测地线作为三维Minkowski空间中的特殊曲线所特有的性质，并通过考虑三维Minkowski空间曲线的几何不变量，估计Minkowski斜螺线和Minkowski锥面测地线这两种特殊曲线和一般Minkowski空间曲线切触的阶数。

In addition, the blank holding force that is required to avoid wrinkle and rupture during conical part deep drawing is researched. The necessity of reasonable blank holding force in pressing is expounded. From the view of mechanical analysis, the wrinkle critical condition of side-wall is derived for the first time by the stress state of side-wall, the main deformation region on blank. According to the critical condition of plastic instability for flange, side--wall, corner of punch on blank, The blank holding force in conical part deep drawing is divided into four different regions within its forming figure. The basic principle of reasonable blank holding force during stamping is summarized and provided. The mathematical model of reasonable blank holding force that avoids the wrinkle and rupture is established and verified by the finite element numerical simulation and the grid experiment method. The result shows that it is accurate and reliable.

此外，本文还研究了圆锥形件拉深成形过程中，随着拉深变形过程的进行，毛坯为避免产生起皱、破坏缺陷而对压边力的需求情况，阐明了圆锥形件拉深成形过程中压边力合理变化的必要性；由毛坯主要变形区悬空锥壁部分的受力变形情况，从力学分析的角度，首次推导得出了圆锥形零件悬空锥壁起皱失稳的临界条件；并根据主要变形区法兰、悬空锥壁及凸模圆角部分的塑性失稳临界条件，在其成形范围图中，将圆锥形件成形过程中的压边力划分为四个区域；总结并提出了圆锥形件成形过程中压边力合理变化的基本原则；建立了防止起皱、破坏缺陷产生的压边力合理变化的数学模式，并得到了有限元数值模拟及网格实验法的验证，证实了理论分析结果的正确性和可靠性。

Based on the equation of the model, the acceleration, displacement and story shear of a seven- story building with a three-story appurtenant structure under three control systems including only rubber-bearing base, rubber-bearing and damper and no rubber-bearing are computed under the earthquake record of 1940 EI- Centrol, respectively.

根据控制系统方程，在无橡胶垫、仅设橡胶垫和同时布置橡胶垫和阻尼器的三种工况下，运用1940EI-Centrol加速度波，对具有三层裙房的七层建筑结构进行了分析，得到了七层建筑的加速度、位移和楼层剪力等参数。

The rotor, supported by babbitt metal made bearing, suspends on the bearing pad thanks to oilfilm lubrication by the fuel feeding system. The end clearances can be adjusted automatically to make oilfilm on both ends the same thickness and ensure no leakage. Compared with screw compressors whose output ends would clasp, this compressor has no possibility of the bearing and rotor biting together.

采用航空级的巴氏合金轴承支撑的转子，通过供油系统提供的油膜润滑：转子能悬浮与轴瓦上，并自动调节端面间隙，使两端油膜厚度相并无泄露，该轴承能保证转子轴绝无咬死之可能，而螺杆压缩机因受轴向力的作用排气端间隙，容易有咬死，抱紧现象。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。