节圆

节圆是一个参考圆，花键的键齿的所有的横向尺寸都是以节圆为基础开始计算的。

Pitch Circle is the reference circle from which all transverse spline tooth dimensions are constructed .

以外摆线形成原理、内摆线形成原理和渐开线形成原理为基础理论，分析了由节圆以上为外摆线和节圆以下为渐开线组合成的复合齿廓形成原理。

Based on the epicycloid , hypocycloid and involute formation theories , the combind tooth profile is made up of the epicycloid above the pitch circle and the involute below the pitch circle .

轴向负荷积分Ja（ε1ε2）与负荷偏心距的节圆直径比率2e/D（pw），采用最小二乘法非线性回归的拟合方式，列出了转盘轴承的额定静负荷计算方程式。

Based on the ratio of axial load integral Ja (ε 1 ε 2 ) to pitch diameter of load eccentricity 2e / Dpw , using nonlinear regression of least-squares procedure , an equation for calculating static load rating of turntable bearings is given in this paper .

金属带式无级变速传动节圆半径优化设计

Optimize Design on Pitch Radius of Metal V-belt Type Continuously Variable Transmission

采用可调活板结构调节轴承外圆至链轮节圆之间的距离，保证了拨板机构的位置精度。

Ensure the position of the dialing mechanism by using the mechanism adjusting the distance .

节点是键齿的齿廓与节圆的交点。

Pitch Point is the intersection of the spline tooth profile with the pitch circle .

按照具体实例，介绍了链轮最小节圆半径的确定方法。

According to substantial example , the determining method of the minimum circle radius of chain wheel is introduced .

非平行的齿轮，非交叉传动的轴也有节圆，但是不存在纯滚动节圆概念。

Gears on nonparallel , non-intersecting shafts also have pitch circles , but the rolling-pitch-circle concept is not valid .

采用该拨板机构时，其支座角度以135°左右为宜，轴承外圆至链轮节圆之间的距离最好为0或略小于0。

Using dialing mechanism , the angle of the bearing and chain wheel is 135 °, and the distance between bearing and chain wheel is 0 or less than 0 .

采用扫描电镜分析了空间齿轮在真空环境下的磨损形式，同时分析了齿轮轮齿在齿顶、节圆附近以及齿顶和节圆之间的磨损程度。

The wear form of space gear mechanism in the vacuum environment was observed , and the degree of wear at the addendum , near the pitch and between the addendum and the tooth pitch , were analyzed by SEM .

螺伞齿轮更换加工过程中，需使用渐开线内花键齿形定位锥度芯轴支承加工，才能达到渐开线内花键分度圆与轴承配合圆及齿轮节圆同轴精度要求。

When changing and processing spiral shell 's bevel gear , it is necessary to use evolute internal spline tooth shape locating taper spindle for backing processing , so as to meet different spindle precision requirements of evolute internal spline reference circle , bearing fit circle and gear pitch circle .

非封闭型节曲线非圆齿轮加工数学模型与仿真研究

Investigation on Mathematical Model and Simulation for Machining Unclosed Pitch Curve 's Noncircular Gear

采用非接触声激励和非接触式激光全息摄像精确地测量出了CD光盘从零节圆到三节圆五节径的振动模态，最高模态频率达6300Hz。

The vibration modes of the disk from 0 order node-circle to three order node-circles and five order node-diameters are measured exactly through non-contact sound exciting and non-contact TV-Holography recording , the highest modal frequency measured is up to 6 230 Hz .

在中秋节，月亮非常圆，非常的漂亮。

On Mid-Autumn Festvial , the moon is very round and beautiful .

四节介质塞加载圆波导平面相控阵理论分析和优化设计

Optimization Design and Theoretical Analysis of a 4-Layers Dielectric-Plugged Circular Waveguide Planar Phased Array

中秋节的月亮最圆吗？

Mid-Autumn Festival moon is round it ?

本文用积分方程法严格分析了四节介质塞加载圆波导平面相控阵，给出了阵列反射系数表达式。

In this paper , a 4-layers dielectric-plugged circular waveguide planar phased array is analysed rigorously by the method of integral equation and the reflection coefficient of array is given .

五月一日在上海举办的草莓音乐节让她能圆了自己成为下一个摇滚明星的梦，并且她也让现场观众尖叫连连然而却不是像她期待的那样。

On May Day in Shanghai , the screen icon took the stage of Strawberry Festival to realise her dream to become the next rock star and she wowed the audience but not exactly in the way she intended .

提出了薄壁筒体卧置状态自重变形量的计算公式，可以较准确地知道筒节自重对筒节圆度影响的程度。

The formulas for calculating the amount of deadweight deformation of cylindrical shell with small thickness in horizontal condition are given , which is helpful to find out the effects of deadweight on the roundness accurately .

算例表明，该模型可以有效计算成圈长叶片结构的振动特性，很好地反映成圈叶片结构的节径振动和节圆振动，为成圈叶片的振动设计和振动测量提供指导。

The study shows the proposed model can analyze vibration of continuous cover blades effectively , and visualizes nodal diameter vibration and nodal circle vibration very well . The proposed model and program can provide guidance for vibration design and vibration measurement of continuous cover blades .

分析了节径振型和节圆振型间的关系和出现规律。

The relationship between the vibration modes of node-diameter and node-circle and the law of their emerging are investigated .