螺旋槽

The feasibility of this method is proved by the result of spiral groove dry gas seal, and the distribution law of T-groove dry gas seal liquid pressure field is gained.

利用目前研究较成熟的螺旋槽干气密封有限元分析结果，验证了使用Fluent软件的可行性，然后模拟仿真并分析得出了T型槽干气密封的三维压力场分布规律。

A numerical model based on the surface geometry of the horizontal twisted and fluted tube was established.

本文做的主要工作有： 1。根据水平螺旋槽管的槽道几何形状建立正交曲线坐标系 2。

This paper mainly analyses the properties of spiral fluted taps and studies how to select geometric parameters of the tap M36 in design.

本文主要对螺旋槽丝锥的特性及M36螺旋槽丝锥设计中几何参数的研究进行论述。

Up to now, the use and manufacture of spiral fluted taps is seldom seen in our country, The design of spiral fluted taps with a large diameter is still in the reseach stage.

目前，螺旋槽丝锥在我国的制造和应用还很少，而大直径螺旋槽丝锥的设计至今仍处于探索阶段。

Lastly, experiment on various spirally grooved tube is made to obtain relationship between diverse parameters and performance of heat exchanger.

接着，根据得到的滚压力与槽深之间的对应关系为螺旋槽管的二次加工提供了必要的实际指导。

One is the error on the direction in the length of the loxodrome,and the other is the error on the height direction. Both of them are analyzed in this paper.

当用片铣刀进行铣槽加工时，由于是用直线段包络斜航线，存在刀具干涉问题；刀具干涉会引起螺旋槽长度方向和高度方向上的两种误差。

This paper introduced principle, process, characteristics and controlling deep slot of spiral groove movable ring of photoetching in the liquid hydrodynamic seal.

主要介绍了流体动力密封螺旋槽动环光刻工艺的特点、原理、工艺过程、工艺流程、槽深控制方法以及应用情况，提出了采用高能束流刻蚀螺旋槽动环的新途径。

Moreover, sum up the modeling method and step for tap;The paper focus on the tapping speciality of screw tap, and the influence between geometrical parameters and cutting performance, targeting the minimum tapping and axial force, the optimum design of geometrical parameters is done, especially the flute shape.

论文重点研究了螺旋槽丝锥的攻丝特性及其几何参数对切削性能的影响，基于最优设计原理建立了攻丝扭矩最小及轴向力为零的双目标非线性优化模型，并利用Matlab软件，对螺旋槽丝锥的几何参数，尤其是丝锥容屑槽槽形，进行了优化，根据优化结果建立了丝锥的三维CAD造型。

On the basis of structural features and heat transfer characteristics of a spiral-grooved tube heat exchanger,a three-dimensional geometric model was established for the flow and heat transfer in a heat exchanger with water serving as its working medium.

根据螺旋槽管换热器结构特点及传热特性，建立了以水为工质的换热器流动与传热的三维几何模型。运用有限元分析软件ANSYS模拟出换热器在换热过程中速度场与温度场的状况，分别得到了螺旋槽管内壁与外壁的对流换热系数。

Does spiral movement synchronously,a nonlinear model was established by neural networks to describe the relationship between the helical groove and the milling cutter'sprofile,and according to the helical groove axial cross section to simulate the milling cutter's profile.

加工螺旋槽时，针对铣刀刃形的设计，应用包络面原理，采用神经网络方法建立了工件螺旋槽形与铣刀刃形之间的非线性关系模型，并通过工件螺旋槽端面截形模拟仿真出铣刀回转面刃形。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。