Research of thrust characteristics about new type permanent magnetic linear synchronous motor based on ANSYS

JIANG Hong－wei
（SANY Heavy Industry Co.，Ltd.， Changsha 410100， China）

Abstract： Because of the high speed， high precision and high volume ratio of thrust，the linear motor is concerned more and more in CNC machine & high performance IC package manufacturing field. Aiming at the slot effect，end effect，detent force of linear motor derived from the characteristics of the permanent magnetic linear synchronous motor（PMLSM） structure，a new structure of motor mover was built to weaken end effect derived from the discrete end structure，the advantage of weakening the thrust fluctuation was verified through finite element analysis（FEA）. The results indicate that this new type PMLSM has the characteristic of low thrust fluctuation，and provides a new possibility in the PMLSM structural optimization field.
Key words： permanent magnetic linear synchronous motor（PMLSM）；finite element analysis（FEA）；end force；detent force