CVT滚子牵引传动——在其设计、函数化和模拟研究方面的评估  

CVT Rolling Traction Drives——A Review of Research Into Their Design、Functionality,and Modeling

作　　者：S. Aehurst D. A. Parker S. Chaaf 

出　　处：《传动技术》2008年第2期32-42,33,共11页Drive System Technique

摘　　要：本文详细地评估了有关滚子牵引传动无级变速器(CVTs)的模拟的现代专著。通过比较小接触区对CVTs工作进行综述,考察引入实例的设计和运动学,包含影响设计优化的系数,详细研究了牵引接触的性质,特别关注弹性流体润滑和恶劣接触条件。检查牵引系数的影响系数和基础的经验予测和现代计算对比,最后考虑到流体牵引流变学的测量,导致专用流体的理想特性的确定和开发。In this paper we detail a review of the current state of published work regarding the modeling of rolling traction drive Continuously Variable Transmissions（CVTs）. An overview of CVTs operating by traction through small contact areas is performed, the layouts and kinematics of leading examples are reviewed, including the factors affection design optimization. Properties of the traction contacts are considered in detail, with particular attention to elastohydrodynamic lubrication and asperity contact. Factors affecting the traction coefficient are reviewed and fundamental empirical predictions are contrasted with modern modeling computations. Finally measurements of the theology of traction fluids are considered, leading to a definition of ideal properties and the development of proprietary fluids.

关 键 词：滚子牵引传动 无级变速器 牵引接触 弹性流体润滑 

分 类 号：U463.212[机械工程—车辆工程]