超导磁轴承环锭纺纱工艺中纱线路径的数学建模

Mathematical modeling of yarn path in superconducting magnetic bearing-based ring spinning process

在德国研究基金会(DFG)的资助下,成功研发出一种新型无摩擦超导磁轴承(SMB),可替代钢领/钢丝圈系统的加捻,具有能使现有的环锭纺纱工艺生产率翻倍的巨大潜力。该SMB系统已获得专利授权(DE 11 2012 000 596A5),将其安装在一台环锭纺纱测试仪上测试证实,该系统可以工作。集成型高性能SMB加捻元件对动态纱线路径及纺纱工艺有显著的影响,因此纱线的张力分布和气圈的几何形态与传统的纲领/钢丝圈系统有很大的不同。研究旨在就新集成的SMB系统建立动态纱线路径的数学模型,以阐明纺织技术上和物理上的基础原理知识。

Within the framework of a project from the German Research Foundation （DFG）, a friction-free novel superconducting magnetic bearing （SMB）has been developed as an alternative twisting method of ring/traveler system which offers a great potential to double the productivity of existing ring spinning processes. The patented SMB-system（DE 11 2012 000 596 A5）has already been implemented in a ring spinning tester, which proves its functionality as well. The integration of a high-performance SMB-twisting element influences the dynamic yarn path as well as the spinning process significantly. Thus, the yarn tension distribution and balloon geometry differ considerably from that of conventional ring/traveler system. The aim of the research work is to establish a mathematical model of dynamic yarn path considering the newly integrated SMB-system, in order to clarify the fundamental knowledge about technological and physical limitation.