Open AccessAnalysis of vibration characteristics of cylindrical linear induction motor
Author(s) -
Liu Wei,
Jiazhu Xu,
Chuibing Huang
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1303/1/012029
Subject(s) - vibration , stator , modal analysis , modal , transient (computer programming) , natural frequency , linear motor , control theory (sociology) , finite element method , modal testing , induction motor , physics , engineering , acoustics , computer science , structural engineering , materials science , mechanical engineering , voltage , control (management) , quantum mechanics , artificial intelligence , polymer chemistry , operating system
Due to the non-periodic operation of the cylindrical linear induction motor, the vibration characteristics cannot be studied by the conventional steady-state method. In this paper, the finite element modal analysis method is used to describe the natural vibration characteristics of linear motor with different connection conditions, and the contribution factors of modal on the overall vibration are quantitatively analyzed. Besides, the modal change law of linear motor is analyzed, and the transient dynamics method is used to investigate the transient forced vibration characteristics of the linear motor during the movement of the mover. The research shows that the elastic connection can greatly reduce the natural vibration frequency of the linear motor; when the excitation force is applied, the mover bracket is the most easy to vibrate; the motion of the mover has little effect on the linear motor mode, and the difference is reflected in the different mode of stator because of the different relative position of mover and stator.