金属带式无级变速器金属块间挤压力分布研究
Extrusion Force Distribution between Metal Blocks for Metal Belt Continuously Variable Transmission

以金属带式无级变速器金属块挤压力为研究目标,建立金属块挤压力数学模型。数值解和解析解的对比结果显示:挤压力从主动轮入口处开始增大,至某直线段末尾处止,此时挤压力最大;从从动轮入口处开始减小,直至为零;同时金属块挤压力进入下一个循环时,在数值上体现较好的衔接。此变化趋势及拐点与解析解基本一致说明数值解正确,模型可靠;数值解与解析解的曲线差异说明,解析解因没有考虑金属带组件间的碰撞和振动等因素而导致其存在局限性。
The extrusion force between metal blocks in metal belt continuously variable transmission(MB-CVT) is the research objective; mechanics model of metal block extrusion force has been developed. Through the comparative analysis of numerical solution and analytical solution, the results indicate that the extrusion force increases from the driver pulley ingress beginning to end straight Line Segment bc terminal, and decreases from the driven pulley egress until zero. This trend and the inflection point are consistent with the analytical solution, and it shows that numerical solution correct and the established model is rational. The curve difference between numerical solution and analytical solution indicates that analytical solution has limitation because collision and vibration of metal belt assembly is not considered