双机振动系统的自同步过程分析与试验研究

发布时间：2018-05-13 02:09

本文选题：振动系统 + 自同步过程　；参考：《东北大学学报(自然科学版)》2017年01期

【摘要】：以双机反向回转驱动振动系统为研究对象,将两电机的转速与激振器间的相位差作为指标对双机驱动振动系统的自同步过程进行分析与试验研究.通过对比相位差的变化发现电机部分对自同步过程的影响最为重要,其次是激振器部分,最后为振动体部分.仿真与试验结果表明:两激振器的初始相位差和两电机的初始转速对实现双机的自同步运动几乎没有影响;在满足同步性条件时,不同供电频率的两电机可以实现同步;当两激振器质量不同时,质量大的激动器相位落后质量小的激动器;当两激振器回转中心至机体质心距离不等时,距离大的激振器相位落后距离小的激振器;可通过调节电机供电频率来减小由电机参数、激振器质量及电机安装位置等内部扰动导致的相位差,使双机实现同步运动.
[Abstract]:The self-synchronization process of the two-machine drive vibration system is analyzed and tested by taking the rotating speed of the two motors and the phase difference between the exciters as the index. By comparing the phase difference, it is found that the motor part has the most important effect on the self-synchronization process, followed by the exciter part, and finally the vibrating body part. The simulation and experimental results show that the initial phase difference of the two exciters and the initial rotational speed of the two motors have little effect on the self-synchronous motion of the two machines, and when the synchronization condition is satisfied, the two motors with different power supply frequencies can achieve synchronization. When the mass of the two exciters is different, the excitators with large mass lag behind the exciters with small mass, and the excitators with the long distance from the center of gyration to the center of mass of the body when the distance between the two exciters is not equal to the center of mass of the body. By adjusting the power supply frequency of the motor, the phase difference caused by the internal disturbances such as the parameters of the motor, the quality of the exciter and the installation position of the motor can be reduced, so that the synchronous motion of the two machines can be realized.
【作者单位】：东北大学机械工程与自动化学院;
【基金】：国家自然科学基金资助项目(51375080)
【分类号】：TH113.1

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