End Force Calculation of Linear Motor
date
Sep 28, 2023
slug
endforce
status
Published
tags
motor
summary
End Force Cal.
type
Post
Reference
[1] 彭兵,张囡,夏加宽等.永磁直线电机端部效应力的解析计算[J].中国电机工程学报,2016,36(02):547-553.DOI:10.13334/j.0258-8013.pcsee.2016.02.028.
Detent force of linear motor (LM) is composed of end force () and cogging force () . Detent force is easily to be obtained by finite element method (FEM) . End force can be calculated by subtracting cogging force from detent force. So, end force can be obtained using slotless model.
1. Slotless model ()
FEM result of detent force is as follows,
2. Infinitely long right end ()
FEM result of left end force is as follows,
3. Infinitely long left end ()
FEM result of right end force is as follows,
4. force synthesis
Combine and into , and compare with .
