PumpSmart can avoid certain operating speed ranges, or windows to avoid undesirable resonance while in the speed control mode. 避免在产生电机共振的速度区域运行。
The resonance mechanism and conditions of the train-bridge system under moving trains are studied through theoretical derivations and example analyses. 摘要通过理论推导和分析实例研究列车以一定速度通过桥梁时，车桥系统的共振机理和发生共振的条件。
