TY - CPAPER
PB - ASABE
CY - St. Joseph, MI
AU - yin, yiyong
AU - jin, jianzhou
AU - Du, yuefeng
AU - Zhang, wenqiang
AU - liu, binhui
TI - Analysis of normal force of permanent magnet linear synchronous motor for machine tools
T2 - 2018 ASABE Annual International Meeting
T3 - ASABE Paper No. 1801100
DO - https://doi.org/10.13031/aim.201801100
PY - 2018
SP - 1
KW - Analytical model
KW - finite element method
KW - normal force
KW - permanent magnet linear synchronous motor (PMLSM)
KW - virtual displacement method.
UR - https://elibrary.asabe.org/abstract.asp?aid=49225&t=5
AB - Normal force of permanent magnet linear synchronous motor (PMLSM) is the main reason for the mechanical structure deformation of machine driving system, so the normal force is a problem worth studying when the PMLSM is applied to CNC machine tools. Considering precision of the normal force, the electromagnetic force of PMLSM was analyzed by the virtual displacement method. First select a small virtual displacement, and then calculate the system energy difference between the two virtual displacement, the ratio of the energy difference and displacement was the electromagnetic force. The normal force of PMLSM was periodic, the periodicity was a pole pitch. With the change of the displacement of the X direction, the normal force was fluctuant, the range of fluctuation was 3450N~3780N. The ratio of the difference value of normal force fluctuation and average value of normal force was about 9.1%, Compared with the finite element one, this new method has verified its accuracy and validity. Thereby it is one method for the analysis of normal force in PMLSM.
ER -