本文推导了拉维娜式行星齿轮变速器的运动特性方程。
This paper derives the motion property equation for Ravigneaux planetary transmission.
文中推导了拉维娜式行星齿轮变速器的单排双行星轮式齿轮机构的运动特性方程式。
This paper derives the motion property equation of the one-row and two-planets gears for Ravigneaux planetary transmission.
该型谱和基于矩阵与MATLAB的传动分析方法，为研究复杂行星齿轮机构和设计汽车自动变速器提供了新的途径。
The type spectrum and the method based on the matrix and MATLAB offers new approaches to the research of the complex planetary gear transmission and the design of the automatic transmission.
由于行星齿轮轴和变速器壳体螺栓固定，它会和变速器壳体一起旋转。
Since the pinion shaft is bolted to the case, it revolves with the case.
带式行星齿轮无级变速器实质上是一种可无级变速的封闭式差动轮系。
In essence the belt planetary gear continuously variable transmission is a planetary differential train the speed of which is adjustable.
研究和阐述一种适用于汽车自动变速器的行星齿轮新轮系。
A new type of planetary gear system for vehicle auto transmission is studied and set forth.
对自动变速器的齿轮参数进行了优化，使行星排的效率得到明显的提高。
Automatic transmission gear of the parameters are optimized. Efficiency of at is improved obviously.
但是，在自动变速器里，齿轮不需要滑动，所有齿轮相互之间保持啮合状态，换挡是通过行星齿轮的控制来实现的。
In an automatic transmission, however, the gears are never physically moved and are always engaged to the same gears. This is accomplished through the use of planetary gear sets.
行星齿轮组也同样用于许多汽车变速器中。
Planetary gear systems are also used in many automatic transmissions.
下面就是自动变速器的最主要的机构------行星齿轮机构。
Following is the important part of automatic transmission: planetary gear sets.
比较不同结构型式行星齿轮机构的特点，基于它们各自的优缺点，选用拉威娜式自动变速器作为研究对象。
The structure and characteristic of different kinds of planetary gear train is briefly analyzed, based on this, Ravigneavx AT is selected as the research object.
为了能够改变变速器的传动比，大多数自动变速器使用了行星齿轮机构。
To change the gear ratio, most automatic transmissions use planetary gear set.
介绍了利用杠杆分析法进行行星齿轮变速机构方案设计的过程及方法，对汽车自动变速器的设计具有一定的指导意义。
This paper illustrates the processing art method of the hard gear wheel with big modulus in accordance with the mill wheel machine equipment in our factory and analyzed the big modulus gear wheel.
介绍了利用杠杆分析法进行行星齿轮变速机构方案设计的过程及方法，对汽车自动变速器的设计具有一定的指导意义。
This paper illustrates the processing art method of the hard gear wheel with big modulus in accordance with the mill wheel machine equipment in our factory and analyzed the big modulus gear wheel.
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