筒管夹头参数慢变转子系统不平衡动态响应仿真分析

摘要

In this paper a time-varying dynamic system with varying masses of the high-speed winder spindle is modeled and analyzed. Three formations of the spindle with different kinds of spinning cake diameters, and the spindle with time-varying masses is simulated in the way of the unbalance harmonic excitation analysis, and simula- tion results are compared. Numerical simulation which is similar to real spindle system with unbalance masses is re- alized, features of the dynamic response of the spindle system unbalance masses are obtained. It is found that the analysis of single formation without time-varying parameters would not obtain proper response of the spindle system, it is necessary to analyze the high-speed winder spindle in a way which time-varying parameters are considered in the model.%对熔融纺丝关键设备高速卷绕机筒管夹头参数慢变转子系统进行了有限元建模及不平衡谐响应分析。利用有限元分析软件建立了筒管夹头主要零部件的有限元仿真模型;谐响应分析实现了筒管三种不同丝饼直径状态和时变筒管夹头的数值仿真,得到了筒管夹头对不平衡质量的动态响应特性。发现筒管夹头处于某一卷装直径状态的动态特性不能全面表现筒管夹头工作时的实际情况,有必要对其进行近似于实际工作状态的时变筒管夹头仿真。