Affiliations: [a] State Key Laboratory for Strength and Vibration,
School of Aerospace, Xi'an Jiaotong University, Xi'an, Shaanxi, China | [b] Xi'an Jiesheng Electronic Technology Co. Ltd., Xi'an,
Shaanxi, China
Correspondence:
[*]
Corresponding author: Hao Li, State Key Laboratory for Strength
and Vibration, School of Aerospace, Xi'an Jiaotong University, Xi'an, Shaanxi,
China. Tel.: +86 029 82660978; Fax: +86 029 82664849; E-mail: eintonli@hotmail.com
Abstract: A new approach to vibration control simulation for electrodynamic
shakers was developed using an electromagnetic finite element method (FEM)
model. This approach consisted of two parts. First, the electromagnetic
coupling FEM model of the shaker was developed using vibration theory and
electromagnetic theory. The electromagnetic force was described using the
Maxwell stress tensor, and the electromagnetic field distribution and the
dynamic response of the shaker were calculated numerically using FEM. Second,
the vibration control simulation system was established: the shaker was
described using an electromagnetic FEM model, and the controller was described
with an adaptive inverse algorithm. As an example, control simulation of a
1-ton electrodynamic shaker was conducted. The results demonstrate the validity
of this approach and provide a basis for the controller design of electrodynamic shakers.
Keywords: Electromagnetic FEM, electrodynamic shaker, adaptive inverse control
