Electromechanical coupling dynamic modeling and analysis of vertical electrodynamic shaker considering low frequency lateral vibration

被引：3

作者：

Zuo, Shuguang ^{[1
]}

Feng, Zhaoyang ^{[1
]}

Pan, Jian ^{[1
]}

Wu, Xudong ^{[1
]}

机构：

[1] Tongji Univ, Sch Automot Studies, 4800 Caoan Rd, Shanghai 201804, Peoples R China

来源：

ADVANCES IN MECHANICAL ENGINEERING | 2020年 / 12卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Electrodynamic shaker; lateral vibration; electromechanical coupling modeling; neural network; electromagnetic force; FIELD DISTRIBUTION; VIRTUAL SHAKER; MOTOR; SIMULATION; REDUCTION; MACHINES; DRIVEN;

D O I：

10.1177/1687814020963851

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

For the problem of relatively severe lateral vibration found in the vertical electrodynamic shaker experiment, an electromechanical coupling dynamic model of the electrodynamic shaker considering low-frequency lateral vibration is proposed. The reason and mechanism of the lateral vibration is explained and analyzed through this model. To establish this model, an electromagnetic force model of overall conditions is firstly built by fitting force samples with neural network method. The force samples are obtained by orthogonal test of finite element simulation, in which five factors of the moving coil including current, vertical position, flipping eccentricity angle, radial translational eccentric direction and distance are considered. Secondly, a 7-dof dynamic model of the electrodynamic shaker is developed with the consideration of the lateral vibration of the moving system. To obtain the transfer function accurately, the stiffness and damping parameters are identified. Finally, an electromechanical dynamic model is established by coupling the force model and the 7-dof dynamic model, and it is verified by experiments. The coupling model proposed can be further used for the control and optimization of the electrodynamic shaker.

引用

页数：16