电磁型自动平衡系统通过在线辨识转子系统不平衡量,计算并控制平衡盘移动至最佳平衡位置,从而减小或消除原系统的振动。但该技术的工业化应用受到移动控制过渡时间长且可能令系统瞬时振动增强的限制,实例罕见。针对其在移动控制上的不足,采用系统仿真方法研究了可相对转轴正反两个方向任意转动的双平衡盘移动控制策略,并对两类特殊情况给出了解决措施。实验表明使用该控制策略平衡头移动迅速准确,缩短了动平衡时间,规避了系统瞬时振动增强的可能。
Rotor unbalance can be identified online and calculated by an electromagnetic balancer,and the balancing discs subsequently moved to the best compensating position in order to suppress or eliminate the unbalance. However,industrial applications of auto-balancing technology are limited by its long transition time and transient vibration enhancement. In response to these deficiencies in balancer movement control,bi-disc free rotation control strategies have been established and the solutions for two special cases are given. Experiments using the new solutions showed that the balancer could be moved more rapidly and more accurately than with existing methods. As a result,the balancing time was reduced and,more importantly,transient vibration enhancement was avoided.